CN107645054A - Antenna structure and the radio communication device with the antenna structure - Google Patents

Abstract

The present invention provides a kind of antenna structure, including housing, feeding portion and grounding parts, the housing includes front frame, backboard and frame, fluting is offered on the frame, the first breakpoint and the second breakpoint are offered in the front frame, the fluting, first breakpoint and the second breakpoint mark off the first irradiation unit and the second irradiation unit from housing jointly, the feeding portion is the first irradiation unit feed-in electric current, the grounding parts provide ground connection for first irradiation unit, second irradiation unit includes linkage section, first radiant section and the second radiant section, first radiant section described in the linkage section vertical connection, second radiant section and the backboard, first radiant section and second radiant section with the spaced and parallel setting of the first irradiation unit.Backboard in the antenna structure forms all-metal construction, can effectively avoid due to slot, break or the setting of breakpoint and influence the integrality and aesthetic property of backboard.The present invention also provides a kind of radio communication device with the antenna structure.

Description

Antenna structure and the radio communication device with the antenna structure

Technical field

The present invention relates to a kind of antenna structure and with the antenna structure radio communication device.

Background technology

With the progress of wireless communication technology, radio communication device is constantly towards frivolous trend development, and consumer is for production The requirement of product outward appearance also more and more higher.Because metal shell in outward appearance, laser intensity, radiating effect etc. has advantage, because This increasing manufacturer designs the radio communication device with metal shell, such as backboard to meet consumer demand. But the signal that the antenna that sets within it of the easy interference shielding of metal shell is radiated, it is not easy to reach wideband design, cause The radiance of built-in aerial is bad.Furthermore fluting and breakpoint are further typically provided with the backboard, will so influence backboard Integrality and aesthetic property.

The content of the invention

In view of this, it is necessary to which a kind of antenna structure and the radio communication device with the antenna structure are provided.

A kind of antenna structure, including housing, feeding portion and grounding parts, the housing include front frame, backboard and frame, The frame is located between the front frame and the backboard, the backboard ground connection, fluting is offered on the frame, before described Offer the first breakpoint and the second breakpoint on frame, first breakpoint and the second breakpoint connected with the fluting and extend to every The disconnected front frame, fluting, the first breakpoint and second breakpoint mark off the first irradiation unit and the second spoke from the housing jointly Portion is penetrated, one end of the feeding portion is electrically connected to first irradiation unit, and the other end is electrically connected to the backboard, thinks described One irradiation unit feed-in electric current, one end of the grounding parts are electrically connected to first irradiation unit, and the other end is electrically connected to the back of the body Plate, to provide ground connection for first irradiation unit, second irradiation unit includes linkage section, the first radiant section and the second radiation Section, the first radiant section, the second radiant section and the backboard described in the linkage section vertical connection, first radiant section and institute State the second radiant section with the spaced and parallel setting of the first irradiation unit.

A kind of radio communication device, including antenna structure described above.

Above-mentioned antenna structure and the radio communication device with the antenna structure can be covered to LTE-A low frequencies, intermediate frequency, height Frequently, GPS frequency ranges, WIFI 2.4G frequency ranges and WIFI 5G frequency ranges, frequency range are wider.In addition, on the housing of the antenna structure Fluting and breakpoint may be contained within the front frame and frame, be not arranged on the backboard so that the backboard forms complete Metal structure, i.e., not fluting, broken string or the breakpoint of insulation on described backboard so that the backboard can avoid due to fluting, Broken string or breakpoint setting and influence the integrality and aesthetic property of backboard.

Brief description of the drawings

Fig. 1 is that the antenna structure of the first preferred embodiment of the invention is applied to the schematic diagram of radio communication device.

Fig. 2 is the schematic diagram under another angle of radio communication device shown in Fig. 1.

Fig. 3 is the assembling schematic diagram of radio communication device shown in Fig. 1.

Fig. 4 is the circuit diagram of antenna structure shown in Fig. 1.

Fig. 5 is the circuit diagram of the first switching circuit in antenna structure shown in Fig. 1.

Fig. 6 is the circuit diagram of the second switching circuit in antenna structure shown in Fig. 1.

Fig. 7 is S parameter (scattering parameter) curve map when antenna structure shown in Fig. 1 works in first mode.

Fig. 8 is radiation efficiency figure when antenna structure shown in Fig. 1 works in first mode.

Fig. 9 is S ginsengs when antenna structure shown in Fig. 1 works in GPS frequency ranges, WIFI 2.4G frequency ranges and WIFI 5G frequency ranges Number (scattering parameter) curve map.

Figure 10 is spoke when antenna structure shown in Fig. 1 works in GPS frequency ranges, WIFI 2.4G frequency ranges and WIFI 5G frequency ranges Penetrate efficiency chart.

Figure 11 is the structural representation of the antenna structure of the second preferred embodiment of the invention.

Figure 12 is the schematic diagram under another angle of radio communication device shown in Figure 11.

Figure 13 is the assembling schematic diagram of radio communication device shown in Figure 11.

Figure 14 is the circuit diagram of antenna structure shown in Figure 11.

Figure 15 is current trend figure when antenna structure shown in Figure 11 works in first mode.

Figure 16 is current trend figure when antenna structure shown in Figure 11 works in second mode.

Figure 17 is the circuit diagram of switching circuit in antenna structure shown in Figure 11.

Figure 18 and Figure 19 is S parameter (scattering parameter) curve map of antenna structure shown in Figure 11.

Figure 20 and Figure 21 is the radiation gain curve map of antenna structure shown in Figure 11.

Main element symbol description

Antenna structure 100,300

Housing 11,31

Front frame 111,311

Backboard 112,312

Frame 113,313

Accommodation space 114,314

Terminal part 115,315

First sidepiece 116,316

Second sidepiece 117,317

First perforate 318

Second perforate 319

Fluting 118,320

Breakpoint 119

First breakpoint 321

Second breakpoint 322

The long-armed A1 of metal

Metal galianconism A2

First end E1

Second end E2

First feeding portion S1

First grounding parts G1

Second grounding parts G2

Radiant body 13

Second feeding portion S2

3rd grounding parts G3

First irradiation unit 131, T1

Second irradiation unit 133, T2

First radiant section 135, T22

Second radiant section 137, T23

Access area T3

Linkage section T21

Feeding portion 32

Grounding parts 33

Connecting portion 34

First switching circuit 15

First switch unit 151

First switching device 153

Second switching circuit 16

Second switch unit 161

Second switching device 163

Switching circuit 35

Switch unit 351

Switching device 353

Radio communication device 200,400

Display unit 201,401

First electronic building brick 202,402

Second electronic building brick 203,403

3rd electronic building brick 204,404

4th electronic building brick 205,405

5th electronic building brick 206,406

Perforate 207,208,209,407,408,409

Following embodiment will combine above-mentioned accompanying drawing and further illustrate the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.

It should be noted that when an element is referred to as " electrically connecting " another element, it can be directly in another yuan On part or there may also be element placed in the middle.When an element is considered as " electrical connection " another element, it can be connect Connection is touched, for example, it may be the mode of wire connection or contactless connection, for example, it may be contactless coupling Mode.

Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases The arbitrary and all combination of the Listed Items of pass.

Below in conjunction with the accompanying drawings, some embodiments of the present invention are elaborated.It is following in the case where not conflicting Feature in embodiment and embodiment can be mutually combined.

Embodiment 1

Referring to Fig. 1, better embodiment of the present invention provides a kind of antenna structure 100, it can be applied to mobile phone, individual In the radio communication devices such as personal digital assistant 200, to launch, receive radio wave to transmit, exchange wireless signal.

Also referring to Fig. 2, the antenna structure 100 includes housing 11, the first feeding portion S1, the first grounding parts G1, the Two grounding parts G2 and radiant body 13.The housing 11 can be the shell of the radio communication device 200.In the present embodiment In, the housing 11 is made up of metal material.The housing 11 includes front frame 111, backboard 112 and frame 113.The front frame 111st, backboard 112 and frame 113 can be integrally formed.The front frame 111, backboard 112 and frame 113 form the nothing The shell of line communicator 200.An opening (figure is not marked) is provided with the front frame 111, for housing the radio communication dress Put 200 display unit 201.It is appreciated that the display unit 201 has a display plane, the display plane is exposed to this Opening, and the display plane is arranged substantially in parallel with the backboard 112.

The backboard 112 is oppositely arranged with the front frame 111.The backboard 112 is directly connected to frame 113, the back of the body There is no space between plate 112 and frame 113.In the present embodiment, the backboard 112 can be used as the antenna structure 100 and institute State the ground of radio communication device 200.

The frame 113 is located between the front frame 111 and the backboard 112, and respectively around the front frame 111 and The periphery of the backboard 112 is set, to surround an appearance jointly with the display unit 201, the front frame 111 and backboard 112 114 between being empty.The accommodation space 114 is first to house the electronics such as the circuit board of the radio communication device 200, processing unit Part or circuit module are in the inner.

The frame 113 comprises at least terminal part 115, the first sidepiece 116 and the second sidepiece 117.In the present embodiment, The terminal part 115 is the top of the radio communication device 200.The terminal part 115 connects the front frame 111 and the back of the body Plate 112.First sidepiece 116 is oppositely arranged with second sidepiece 117, and both are respectively arranged at the terminal part 115 Both ends, preferred vertical are set.First sidepiece 116 is also connected the front frame 111 and the backboard with second sidepiece 117 112。

Fluting 118 is further opened with the frame 113, breakpoint 119 is offered in the front frame 111.In the present embodiment, The fluting 118 is laid on the terminal part 115, and extends respectively to the sidepiece 117 of the first sidepiece 116 and second. It is appreciated that in other embodiments, the fluting 118 can also be only arranged at the terminal part 115, and not extend to described the Any one in one sidepiece 116 and the second sidepiece 117, or the fluting 118 are arranged at the terminal part 115, and only edge One of extend in the sidepiece 117 of the first sidepiece 116 and second.

The breakpoint 119 118 connect with the fluting, and extends to the cut-off front frame 111, to slot 118 with described Form generally T-shaped structure.In the present embodiment, the breakpoint 119 is set adjacent to second sidepiece 117, said Fluting 118 and the breakpoint 119 mark off two parts, the i.e. long-armed A1 of metal and metal galianconism A2 from the front frame 111 jointly.Its In, the front frame 111 of the side of breakpoint 119 is until it extends to the portion corresponding with the wherein end point E1 of the fluting 118 Divide and be collectively forming the long-armed A1 of the metal.The front frame 111 of the opposite side of breakpoint 119 is until it is extended to and the fluting 118 The corresponding parts of another end points E2 form the metal galianconism A2.In the present embodiment, the position that the breakpoint 119 opens up The centre of the terminal part 115 is not corresponded to, therefore the long-armed A1 of metal length is more than metal galianconism A2 length.Separately Outside, in the fluting 118 and the breakpoint 119 filled with insulating materials (such as plastic cement, rubber, glass, timber, ceramics etc., But do not limited with this As), and then separate the long-armed A1 of the metal, metal galianconism A2 and the housing 11 remainder.

It is appreciated that in the present embodiment, the fluting 118 is opened in the frame 113 close to the one of the backboard 112 End, and the front frame 111 is extended to, to cause the long-armed A1 of the metal and metal galianconism A2 completely by the part front frame 111 Form.Certainly, in other embodiments, the fluting 118 opens up position and can be also adjusted according to real needs.For example, The fluting 118 is opened in the frame 113 close to one end of the backboard 112, and prolongs towards the place direction of front frame 111 Stretch, to cause the long-armed A1 of the metal and metal galianconism A2 to be made up of the part front frame 111 and the part frame 113.

It is appreciated that the front frame 111 and the first half of frame 113 do not have in addition to the fluting 118 is with breakpoint 119 Fluting, broken string or the breakpoint for setting other to insulate again, therefore the first half of the front frame 111 just only has a breakpoint 119, does not have Other breakpoints.

Referring to Fig. 2, in the present embodiment, the first feeding portion S1 is arranged in the accommodation space 114, and The neighbouring breakpoint 119 is set.One end of the first feeding portion S1 electrically connects with the long-armed A1 of the metal, to for the gold Belong to long-armed A1 feed-ins electric current, the other end is electrically connected to the backboard 112, that is, is grounded.

The first grounding parts G1 and the second grounding parts G2 is arranged at intervals in the accommodation space 114.Described One grounding parts G1 is set adjacent to first sidepiece 116, and one end is electrically connected to the long-armed A1 of the metal, and the other end is electrically connected to The backboard 112, to provide ground connection for the long-armed A1 of the metal.The second grounding parts G2 is arranged at first feeding portion Between S1 and the first grounding parts G1, and one end is electrically connected to the long-armed A1 of the metal, and the other end is electrically connected to the backboard 112, to provide ground connection for the long-armed A1 of the metal.

The radiant body 13 is arranged in the accommodation space 114, and the neighbouring metal galianconism A2 is set.The radiation Body 13 includes the second feeding portion S2, the 3rd grounding parts G3, the first irradiation unit 131 and the second irradiation unit 133.Second feeding portion S2 is arranged in the accommodation space 114, and neighbouring second sidepiece 117 is set.One end electricity of the second feeding portion S2 The irradiation unit 133 of the first irradiation unit 131 and second is connected to, to for the irradiation unit 133 of the first irradiation unit 131 and second Feed-in electric current.The other end of the second feeding portion S2 is electrically connected to the backboard 112, that is, is grounded.The 3rd grounding parts G3 Generally rectangular shaped strip, it is arranged in the accommodation space 114, and the neighbouring breakpoint 119 is set, and is presented with described second Enter portion S2 interval settings.

First irradiation unit, the 131 generally rectangular shaped strip, it is arranged in the plane parallel with the backboard 112. First irradiation unit 131 is electrically connected to the one end of the second feeding portion S2 away from the backboard 112, and along the parallel end End 115 and the direction extension of close first sidepiece 116.

Second irradiation unit 133 is substantially L-shaped, and it includes the first radiant section 135 and the second radiant section 137.Described One radiant section, 135 generally rectangular shaped strip, itself and the 131 coplanar setting of the first irradiation unit.The one of first radiant section 135 End is electrically connected to the tie point of the second feeding portion S2 and first irradiation unit 131, and the other end is along parallel second side Portion 117 and close metal galianconism A2 direction extension.Second radiant section, the 137 generally rectangular shaped strip, its with it is described First radiant section, 135 coplanar setting.Second radiant section 137 is electrically connected to first radiant section 135 away from described second Feeding portion S2 one end, and along the parallel terminal part 115 and close to first sidepiece 116 direction extend, until with institute State one end electrical connections of the 3rd grounding parts G3 away from the backboard 112.

In the present embodiment, the length of second radiant section 137 is more than the length of first radiant section 135.It is described The length of first irradiation unit 131 is more than the length of second irradiation unit 133.Second irradiation unit 133 and the metal are short The coupling of arm A2 intervals is set.

It is appreciated that referring to Fig. 2 and Fig. 3, in the present embodiment, the radio communication device 200 is also included at least One electronic building brick.In the present embodiment, the radio communication device 200 comprises at least five electronic building bricks, i.e. the first electronics group Part 202, the second electronic building brick 203, the 3rd electronic building brick 204, the 4th electronic building brick 205 and the 5th electronic building brick 206.At this In embodiment, the electronic building brick 203 of the first electronic building brick 202 and second is rear camera module, and both are arranged at intervals Between the first grounding parts G1 and the second grounding parts G2.3rd electronic building brick 204 is a loudspeaker module, and it is set Between the first feeding portion S1 and the second electronic building brick 203.4th electronic building brick 205 is a front camera mould Group, it is arranged between the first feeding portion S1 and the second feeding portion S2, and is directed at the breakpoint 119 and is set.It is described 5th electronic building brick 206 is a flash lamp.

Also referring to Fig. 3, it will be understood that the single sheet metal that the backboard 112 is formed in one.The backboard 112 To appear double camera camera lens (i.e. the first electronic building brick 202 and the second electronic building brick 203) and flash lamp (i.e. the 5th electronic building brick Etc. 206) element and perforate 207,208,209 is set.The backboard 112 sets any for splitting the backboard thereon Fluting, broken string or the breakpoint of 112 insulation.

It is appreciated that in the present embodiment, after electric current is from the first feeding portion S1 feed-ins, electric current will flow through the gold Belong to long-armed A1, and by the long-armed A1 of the metal close to the position of the first end E1, the first grounding parts G1 and the second grounding parts G2 is grounded, and then excites a first mode to produce the radiation signal of the first frequency range.In the present embodiment, the first mode is The basic, normal, high frequency mode of LTE-A, first frequency range include 704-787MHz, 824-960MHz and 1710-2690MHz frequency range. Wherein, the long-armed A1 of metal described in electric current from the first feeding portion S1 feed-ins and by the long-armed A1 of the metal close to described first End E1 position is grounded to produce the radiation signal of 704-787MHz frequency ranges.It is golden described in electric current from the first feeding portion S1 feed-ins Belong to long-armed A1 and be grounded by the first grounding parts G1 to produce the radiation signal of 824-960MHz frequency ranges.Electric current is from described The long-armed A1 of metal described in one feeding portion S1 feed-ins is simultaneously grounded to produce 1710-2690MHz frequency ranges by the second grounding parts G2 Radiation signal.

After electric current is from the second feeding portion S2 feed-ins, electric current will flow through first irradiation unit 131.Now, it is described Second feeding portion S2 forms a unipole antenna with first irradiation unit 131, and excites a second mode to produce the second frequency range Radiation signal.Meanwhile after electric current is from the second feeding portion S2 feed-ins, electric current will flow through second irradiation unit 133 First radiant section 135 and the second radiant section 137, and be grounded by the 3rd grounding parts G3.Now, second feeding portion S2, the second irradiation unit 133 and the 3rd grounding parts G3 form primary Ioops antenna, and excite one the 3rd mode to produce the 3rd frequency The radiation signal of section.In addition, after electric current is from the second feeding portion S2 feed-ins, electric current will flow through second irradiation unit 133, And the metal galianconism A2 is coupled to by second irradiation unit 133, finally by the metal galianconism A2 close to described Two end E2 position ground connection, and then the 4th mode is inspired to produce the radiation signal of the 4th frequency range.In the present embodiment, it is described Second mode is WIFI 2.4G mode.3rd mode is WIFI 5G mode.4th mode is GPS mode.

It is appreciated that referring to Fig. 1 and Fig. 4, in other embodiments, the antenna structure 100 also includes first The switching circuit 16 of switching circuit 15 and second.One end of first switching circuit 15 is electrically connected to the first grounding parts G1, To be electrically connected to the long-armed A1 of the metal by the first grounding parts G1.The other end electrical connection of first switching circuit 15 To the backboard 112, that is, it is grounded.One end of second switching circuit 16 is electrically connected to the second grounding parts G2, to pass through The second grounding parts G2 is electrically connected to the long-armed A1 of the metal.The other end of second switching circuit 16 is electrically connected to described Backboard 112, that is, be grounded.

Specifically, please refer to fig. 5, first switching circuit 15 includes the first switch unit 151 and at least 1 the One switching device 153.First switch unit 151 is electrically connected to the first grounding parts G1, to be grounded by described first Portion G1 is electrically connected to the long-armed A1 of the metal.First switching device 153 can be inductance, electric capacity or inductance and electric capacity Combination.It is parallel with one another between first switching device 153, and its one end is electrically connected to first switch unit 151, separately One end is electrically connected to backboard 112, that is, is grounded.

Also referring to Fig. 6, second switching circuit 16 includes the second switch unit 161 and at least one second switching member Part 163.Second switch unit 161 is electrically connected to the second grounding parts G2, to be electrically connected by the second grounding parts G2 It is connected to the long-armed A1 of the metal.Second switching device 163 can be the combination of inductance, electric capacity or inductance and electric capacity.Institute State parallel with one another between the second switching device 163, and its one end is electrically connected to second switch unit 161, and the other end is electrically connected Backboard 112 is connected to, that is, is grounded.

By controlling the switching of the switch unit 161 of the first switch unit 151 and second, it may be such that the metal is long-armed A1 switches to different the first switching device 153 and/or the second switching device 163.Due to each first switching device 153 and Second switching device 163 has different impedances, therefore passes through the switch unit 161 of the first switch unit 151 and second Switching, it can adjust the frequency range of the first mode of the long-armed A1 of metal.Described adjustment frequency range is exactly to make the frequency range inclined toward low frequency Shifting or past high frequency offset.It is appreciated that the switching circuit 16 of the first switching circuit 15 and second can be individually switched or together Switching.Specifically, in the present embodiment, first switching circuit 15 is mainly used in switching the low frequency in first frequency range (704-787MHz and 824-960MHz).Second switching circuit 16 be mainly used in switching intermediate frequency in first frequency range with High frequency (1710-2690MHz).

It is appreciated that in another embodiment, it be can be set in the display unit 201 towards the side of backboard 112 For shielding the radome (shielding mask) of electromagnetic interference or the center of the support display unit 201.The shielding Cover or center are made with metal material.The radome or center can be connected with the backboard 112, to be used as the antenna The ground of structure 100 and the radio communication device 200.Above-mentioned everywhere ground connection can connect the radome, center or The backboard 112.

Fig. 7 is S parameter (scattering parameter) curve map when antenna structure 100 works in first mode.Wherein, curve S71 is the S11 values when antenna structure 100 works in 704-787MHz (LTE Band17/13 frequency ranges).Curve S72 is institute State S11 values when antenna structure 100 works in 824-960MHz (LTE Band5/8 frequency ranges).Curve S73 is the antenna structure 100 work in S11 values during 1710-2690MHz.

Fig. 8 is the radiation efficiency figure when antenna structure 100 works in first mode.Wherein, curve S81 is the day Cable architecture 100 works in radiation efficiency during 704-787MHz (LTE Band17/13 frequency ranges).Curve S82 is the day knot Structure 100 works in radiation efficiency during 824-960MHz (LTE Band5/8 frequency ranges).Curve S83 is the work of antenna structure 100 Make in radiation efficiency during 1710-2690MHz.

Fig. 9 is the S ginsengs when antenna structure 100 works in GPS frequency ranges, WIFI 2.4G frequency ranges and WIFI 5G frequency ranges Number (scattering parameter) curve map.Wherein, curve S91 is that the antenna structure 100 works in GPS frequency ranges and WIFI 2.4G frequency ranges When S11 values.Curve S92 is the S11 values when antenna structure 100 works in WIFI 5G frequency ranges.

Figure 10 is the spoke when antenna structure 100 works in GPS frequency ranges, WIFI 2.4G frequency ranges and WIFI 5G frequency ranges Penetrate efficiency chart.Wherein, curve S101 is the radiation effect when antenna structure 100 works in GPS frequency ranges and WIFI 2.4G frequency ranges Rate.Curve S102 is the radiation efficiency when antenna structure 100 works in WIFI 5G frequency ranges.

Obviously, it was found from Fig. 7 to Figure 10, the antenna structure 100 is operable with corresponding low frequency band, such as LTE Band17/13/5/8 frequency ranges.In addition, the antenna structure 100 may also be operated in the middle and high frequency ranges of LTE-A (1710-2690MHz frequencies Section), GPS frequency ranges, WIFI 2.4G frequency ranges and WIFI 5G frequency ranges, that is, cover to the basic, normal, high frequencies of LTE-A, GPS frequency ranges, WIFI 2.4G frequency ranges and WIFI 5G frequency ranges, frequency range is wider, and when the antenna structure 100 works in above-mentioned frequency range, its work Working frequency can meet Antenna Operation design requirement, and have preferable radiation efficiency.

As previously described, the antenna structure 100 is by setting the fluting 118 and breakpoint 119, with from the housing 11 The long-armed A1 of corresponding metal is marked off, and by setting corresponding first feeding portion S1, the first grounding parts G1, the second grounding parts G2, to cause the long-armed A1 of the metal to excite first mode, and then produce the radiation signal of basic, normal, high section again and again.Therefore it is wireless Carrier aggregation (CA, the Carrier of Long Term Evolution upgrade version (LTE-Advanced) can be used in communicator 200 Aggregation) technology receives or sent wireless signal to increase transmitting bandwidth in multiple different frequency ranges simultaneously.More specifically Say, the carrier aggregation technology can be used and using the long-armed A1 of the metal simultaneously in multiple different frequencies in radio communication device 200 Section receives or sent wireless signal.

In addition, the antenna structure 100 is by setting the housing 11, and fluting 118 and breakpoint 119 on the housing 11 It may be contained within the front frame 111 and frame 113, be not arranged on the backboard 112 so that the backboard 112 is formed entirely Metal structure, i.e., not fluting, broken string or the breakpoint of insulation on described backboard 112 so that the backboard 112 can avoid due to Fluting, broken string or breakpoint setting and influence the integrality and aesthetic property of backboard 112.

Embodiment 2

Refer to Figure 11, better embodiment of the present invention provides a kind of antenna structure 300, its can be applied to mobile phone, In the radio communication devices such as personal digital assistant 400, to launch, receive radio wave to transmit, exchange wireless signal.

Also referring to Figure 12, the antenna structure 300 includes housing 31, feeding portion 32 and grounding parts 33.The housing 31 can be the shell of the radio communication device 400.In the present embodiment, the housing 31 is made up of metal material.It is described Housing 31 includes front frame 311, backboard 312 and frame 313.The front frame 311, backboard 312 and frame 313 can be integrally formed 's.The front frame 311, backboard 312 and frame 313 form the shell of the radio communication device 400.Set in the front frame 311 An opening (figure is not marked) is equipped with, for housing the display unit 401 of the radio communication device 400.It is appreciated that the display Unit 401 has a display plane, and the display plane is exposed to the opening, and the display plane and the backboard 312 are substantially flat Row is set.

The backboard 312 is oppositely arranged with the front frame 311.The backboard 312 is directly connected to frame 313, the back of the body There is no space between plate 312 and frame 313.In the present embodiment, the backboard 312 can be used as the antenna structure 300 and institute State the ground of radio communication device 400.

The frame 313 is located between the front frame 311 and the backboard 312, and respectively around the front frame 311 and The periphery of the backboard 312 is set, to surround an appearance jointly with the display unit 401, the front frame 311 and backboard 312 314 between being empty.The accommodation space 314 is first to house the electronics such as the circuit board of the radio communication device 400, processing unit Part or circuit module are in the inner.

The frame 313 comprises at least terminal part 315, the first sidepiece 316 and the second sidepiece 317.In the present embodiment, The terminal part 315 is the bottom of the radio communication device 400.The terminal part 315 connects the front frame 311 and the back of the body Plate 312.First sidepiece 316 is oppositely arranged with second sidepiece 317, and both are respectively arranged at the terminal part 315 Both ends, preferred vertical are set.First sidepiece 316 is also connected the front frame 311 and the backboard with second sidepiece 317 312。

The first perforate 318, the second perforate 319 and fluting 320 are further opened with the frame 313.Opened in the front frame 311 Provided with the first breakpoint 321 and the second breakpoint 322.The perforate 319 of first perforate 318 and second is opened in the terminal part On 315, both are arranged at intervals and penetrate the terminal part 315.

Referring to Figure 12 and Figure 13, the radio communication device 400 also includes an at least electronic component.In this implementation Example in, the radio communication device 400 include the first electronic building brick 402, the second electronic building brick 403, the 3rd electronic building brick 404, 4th electronic building brick 405 and the 5th electronic building brick 406.First electronic building brick 402 is an earphone interface module, and it is set In in the accommodation space 314, and neighbouring second sidepiece 317 is set.First electronic building brick 402 is opened with described first Hole 318 is corresponding, to cause first electronic building brick 402 to expose from the part of the first perforate 318.Such user can be by one Earphone is inserted by first perforate 318, and then is established and be electrically connected with first electronic building brick 402.

Second electronic building brick 403 is a USB module, and it is arranged in the accommodation space 314, and positioned at described the Between one electronic building brick 402 and first sidepiece 316.Second electronic building brick 403 is relative with second perforate 319 Should, to cause second electronic building brick 403 to expose from the part of the second perforate 319.Such user can lead to a USB device Cross second perforate 319 to insert, and then establish and be electrically connected with second electronic building brick 403.3rd electronic building brick 404 and the 4th electronic building brick 405 be rear camera module.5th electronic building brick 406 is a flash lamp.

In the present embodiment, the single sheet metal that the backboard 312 is formed in one, the backboard 312 are to appear two-phase The element such as machine camera lens (i.e. the 3rd electronic building brick 404 and the 4th electronic building brick 405) and flash lamp (i.e. the 5th electronic building brick 406) and Perforate 407,408,409 is set, and the backboard 312 does not set any insulation for being used to split the backboard 312 thereon Fluting, broken string or breakpoint.

In the present embodiment, the fluting 320 is laid on the terminal part 315, and connect first perforate 318 and Second perforate 319, and extend respectively to the sidepiece 317 of the first sidepiece 316 and second.It is appreciated that in other embodiment In, the fluting 320 can also be only arranged at the terminal part 315, and not extend to the sidepiece of the first sidepiece 316 and second Any one in 317, or the fluting 320 are arranged at the terminal part 315, and extend only to first sidepiece 316 And second one of in sidepiece 317.

The breakpoint 322 of first breakpoint 321 and second connects with the fluting 320, and extends to the cut-off front frame 311.In the present embodiment, first breakpoint 321 is opened in the front frame 311, and is laid in the fluting 320 described The first end E1 connections of first sidepiece 316.Second breakpoint 322 is opened in the front frame 311, and with it is described fluting 320 It is laid in the second end E2 connections of second sidepiece 317.In this way, the 320, first breakpoint 321 of the fluting and the second breakpoint 322 The the first irradiation unit T1 and the second irradiation unit T2 of spaced setting are marked off from the housing 31 jointly.Wherein, the shell The front frame 311 surrounded jointly by the 320, first breakpoint 321 of the fluting and the second breakpoint 322 in body 31 forms described first Irradiation unit T1.The fluting 320 forms the second irradiation unit T2 with the frame 313 that the backboard 312 surrounds jointly. In the present embodiment, the first irradiation unit T1 and the second irradiation unit T2 form the antenna structure of the electronic installation 300, to Receive and/or launch radio wave to transmit, exchange wireless signal.

In the present embodiment, the second irradiation unit T2 is generally T-shaped, and it is a part for the terminal part 315.It is described Second irradiation unit T2 includes linkage section T21, the first radiant section T22 and the second radiant section T23.The linkage section T21 is substantially in square Shape strip, its vertical connection to the backboard 312.The generally rectangular shaped strips of the first radiant section T22.First radiant section T22 is spaced and parallel to be arranged between the first irradiation unit T1 and the backboard 312.The first radiant section T22 vertical connections To the linkage section T21 close to the side of first sidepiece 316, and along the parallel terminal part 315 and close to described first The direction extension of sidepiece 316.The generally rectangular shaped strips of the second radiant section T23.The second radiant section T23 is spaced and parallel to be set It is placed between the first irradiation unit T1 and the backboard 312.The second radiant section T23 vertical connections are to the linkage section T21 and the first radiant section T22 junction, and along the parallel terminal part 315 and close to the side of second sidepiece 317 To extension.The second radiant section T23 is located along the same line with the first radiant section T22, and is total to the linkage section T21 With formation T-type structure.

It is appreciated that it is described fluting the 320, first breakpoint 321 and the second breakpoint 322 in filled with insulating materials (such as Plastic cement, rubber, glass, timber, ceramics etc., but do not limited with this As), and then separate the first irradiation unit T1 and the housing 31 Remainder.

It is appreciated that in the present embodiment, the fluting 320 is opened in the frame 313 close to the one of the backboard 312 End, and the front frame 311 is extended to, to cause the first irradiation unit T1 to be made up of completely the part front frame 311.Certainly, In other embodiments, the fluting 320 opens up position and can be also adjusted according to real needs.For example, the fluting 320 The frame 313 is opened in close to one end of the backboard 312, and is extended towards the place direction of front frame 311, it is described to cause First irradiation unit T1 is made up of the part front frame 311 and the part frame 313.

It is appreciated that in the present embodiment, the first radiant section T22 and the second radiant section T23 to the front frame 311 Distance is 1.83mm.The first radiant section T22 and the second radiant section T23 width are 1mm.The first radiant section T22 with The distance of second radiant section T23 to the backboard 312 is 1mm.

Referring to Figure 12, the feeding portion 32 is arranged in the accommodation space 314, and is located at second electronics Between component 403 and first sidepiece 316.One end of the feeding portion 32 is electrically connected to the first irradiation unit T1, another End is electrically connected to the backboard 312, that is, is grounded, thinks the first irradiation unit T1 feed-in electric currents.

The grounding parts 33 are arranged in the accommodation space 314, and positioned at second electronic building brick 403 and the feedback Enter between portion 32.One end of the grounding parts 33 is electrically connected to the first irradiation unit T1, and the other end is electrically connected to the backboard 312, that is, it is grounded, and then ground connection is provided for the first irradiation unit T1.

Referring to Figure 12, it will be understood that in other embodiments, the antenna structure 300 also includes connecting portion 34. The connecting portion 34 is arranged in the accommodation space 314, and neighbouring first sidepiece 316 is set.The connecting portion 34 One end is electrically connected to the first irradiation unit T1, and the other end is electrically connected to the first radiant section T22, to cause first spoke Portion T1 is penetrated to electrically connect with the first radiant section T22.The connecting portion 34 makes to increase the cascade unit of the first irradiation unit T1 It is operable in required low, intermediate-frequency band, while also can adjust capacitive reactance and the induction reactance of the antenna structure 300, makes described Antenna structure 300 possesses the characteristic of wideband operation.In the present embodiment, the connecting portion 34 is a flexible PCB (Flexible Printed Circuit Board, FPCB).In practical implementation, only it need to simply change the connecting portion 34, the frequency range of the antenna structure 300 can be adjusted, without changing the first irradiation unit T1 and the second irradiation unit T2 structure.

It is appreciated that also referring to Figure 15, after electric current is from 32 feed-in of feeding portion, electric current will flow through described first Irradiation unit T1, and the first radiant section T22 is flowed into by the connecting portion 34, then pass through the linkage section T21 and the back of the body Plate 312 is grounded, and then causes the first irradiation unit T1, the connecting portion 34 and the first radiant section T22 to excite one jointly First mode is to produce the radiation signal of the first frequency range (please join path P 1).In the present embodiment, the first mode is LTE-A Low, intermediate frequency mode, first frequency range include 704-960MHz, 1710-2300MHz frequency range.Wherein LTE-A low frequency modals are total to The current path that shakes includes the whole first irradiation unit T1.The resonance current path of LTE-A intermediate frequency mode only includes described first Irradiation unit T1 is wherein from the feeding portion 32 to the part of first breakpoint 321.

Also referring to Figure 16, after electric current is from 32 feed-in of feeding portion, electric current will flow through the first irradiation unit T1 The first radiant section T22 and second radiation are flowed into close to the part of the connecting portion 34, and by the connecting portion 34 Section T23, then the first irradiation unit T1 is coupled to by the second radiant section T23, it is grounded finally by the grounding parts 33, And then the first irradiation unit T1 and the second radiant section T23 is caused to excite a second mode jointly to produce the second frequency range Radiation signal (please join path P 2).In the present embodiment, the second mode is LTE-A high frequency mode, the second frequency range bag Include 2500-2690MHz frequency ranges.

It is appreciated that referring to Figure 12 and Figure 14, in other embodiments, the antenna structure 300 also includes cutting Change circuit 35.The switching circuit 35 is arranged in the accommodation space 314, and one end is electrically connected to the grounding parts 33, with The first irradiation unit T1 is electrically connected to by the grounding parts 33, the other end is electrically connected to the backboard 312, that is, is grounded.

Specifically, switch unit 351 and an at least switching device are included also referring to Figure 17, the switching circuit 35 353.The switch unit 351 is electrically connected to the first irradiation unit T1 by the grounding parts 33.The switching device 353 can Think the combination of inductance, electric capacity or inductance and electric capacity.It is parallel with one another between the switching device 353, and its one end electrically connects To the switch unit 351, the other end is electrically connected to backboard 312, that is, is grounded.In this way, by controlling the switch unit 351 Switching, may be such that the first irradiation unit T1 switches to different switching devices 353.Because each switching device 353 has Different impedances, therefore by the switching of the switch unit 351, can adjust the frequency range of the antenna structure 300.

It is appreciated that in another embodiment, it be can be set in the display unit 401 towards the side of backboard 312 For shielding the radome (shielding mask) of electromagnetic interference or the center of the support display unit 401.The shielding Cover or center are made with metal material.The radome or center can be connected with the backboard 312, to be used as the antenna The ground of structure 300 and the radio communication device 400.In this way, at Figure 11 to Figure 17 each ground connection, the shielding Cover or center can substitute the backboard 312 to provide ground connection.

Figure 18 and Figure 19 is S parameter (scattering parameter) curve map of the antenna structure 300.Wherein, curve S161 and When S171 is that the switching circuit 35 switches to first state, the antenna structure 300 works in 824-894MHz and 1710- S11 values during 1880MHz.When curve S162 and S172 are that the switching circuit 35 switches to the second state, the antenna structure 300 work in S11 values during 880-960MHz and 2300-2400MHz.Curve S163 is that the switching circuit 35 switches to the 3rd During state, the antenna structure 300 works in S11 values during 703-803MHz.Curve S173 is that the switching circuit 35 switches During to four states, the antenna structure 300 works in S11 values during 1710-2170MHz.

Figure 20 and Figure 21 is the radiation gain curve map of the antenna structure 300.Wherein, curve S181 and S191 is described When switching circuit 35 switches to first state, when the antenna structure 300 works in 824-894MHz and 1710-1880MHz Yield value.When curve S182 and S192 are that the switching circuit 35 switches to the second state, the antenna structure 300 works in Yield value during 880-960MHz and 2300-2400MHz.When curve S183 is that the switching circuit 35 switches to the third state, The antenna structure 300 works in yield value during 703-803MHz.Curve S193 is that the switching circuit 35 switches to the 4th During state, the antenna structure 300 works in yield value during 1710-2170MHz.

Obviously, it was found from Figure 18 to Figure 21, the antenna structure 300 is operable with corresponding basic, normal, high frequent section, example Such as 704-960MHz, 1710-2300MHz and 2500-2690MHz frequency range.And when the antenna structure 300 works in above-mentioned frequency Duan Shi, its working frequency can meet Antenna Operation design requirement, and have preferable radiation efficiency.Furthermore when described in increase After switching circuit 35, due to high-frequency band described in the first irradiation unit T1 and the second radiant section T23 co- controllings.Therefore, no Which kind of state being in by the switching circuit 35 in first state to the 4th state, the high-frequency band can always be excited.

As previously described, the antenna structure 300 is by setting the 320, first breakpoint 321 of the fluting and the second breakpoint 322, to mark off corresponding first irradiation unit T1 and the second irradiation unit T2 from the housing 31, and by setting corresponding feed-in Portion 32, connecting portion 34 and switching circuit 35, to cause the antenna structure 300 to excite first mode and second mode, and then produce The radiation signal of raw basic, normal, high section again and again.Therefore Long Term Evolution upgrade version (LTE- can be used in radio communication device 400 Advanced carrier aggregation (CA, Carrier Aggregation) technology) receives or sent nothing in multiple different frequency ranges simultaneously Line signal is to increase transmitting bandwidth.More specifically, radio communication device 400 can be used the carrier aggregation technology and use the One irradiation unit T1 and the second irradiation unit T2 receives or sent simultaneously wireless signal in multiple different frequency ranges.

In addition, the antenna structure 300 is by setting the housing 31, and fluting 320, the first breakpoint on the housing 31 321 and second breakpoint 322 may be contained within the front frame 311 and frame 313, be not arranged on the backboard 312 so that institute State backboard 312 and form all-metal construction, i.e., fluting, broken string or the breakpoint not insulated on described backboard 312 so that the back of the body Plate 312 can avoid due to slot, break or the setting of breakpoint and influence the integrality and aesthetic property of backboard 312.

The antenna structure 100 of the embodiment 1 and the antenna structure 300 of the embodiment 2 can be applicable to same wireless Communicator.Such as the upper antenna using antenna structure 100 as the radio communication device, and using antenna structure 300 as the nothing The lower antenna of line communicator.When the radio communication device sends wireless signal, the radio communication device uses the antenna Structure 300 sends wireless signal.When the radio communication device receives wireless signal, the radio communication device uses the antenna Structure 100 and antenna structure 300 receive wireless signal together.

Embodiment of above is merely illustrative of the technical solution of the present invention and unrestricted, although the preferable embodiment party with reference to more than The present invention is described in detail formula, it will be understood by those within the art that, can be to technical scheme Modify or equivalent substitution should not all depart from the spirit and scope of technical solution of the present invention.Those skilled in the art can also be at this The design that other changes etc. are used in the present invention is done in spirit, without departing from the technique effect of the present invention.These The change done according to present invention spirit, it should all be included within scope of the present invention.

Claims (14)

1. a kind of antenna structure, including housing, feeding portion and grounding parts, the housing includes front frame, backboard and frame, institute State frame to be located between the front frame and the backboard, the backboard ground connection, fluting, the front frame are offered on the frame On offer the first breakpoint and the second breakpoint, first breakpoint and the second breakpoint connect with the fluting and extend to cut-off The front frame, fluting, the first breakpoint and second breakpoint mark off the first irradiation unit and the second radiation from the housing jointly Portion, one end of the feeding portion are electrically connected to first irradiation unit, and the other end is electrically connected to the backboard, thinks described first Irradiation unit feed-in electric current, one end of the grounding parts are electrically connected to first irradiation unit, and the other end is electrically connected to the backboard, To provide ground connection for first irradiation unit, second irradiation unit includes linkage section, the first radiant section and the second radiant section, First radiant section, the second radiant section and the backboard described in the linkage section vertical connection, first radiant section and described Second radiant section with the spaced and parallel setting of the first irradiation unit.

2. antenna structure as claimed in claim 1, it is characterised in that：The fluting, first breakpoint and described second are broken Insulating materials is filled with point.

3. antenna structure as claimed in claim 1, it is characterised in that：By the fluting, first breakpoint in the housing And the front frame that second breakpoint surrounds jointly forms first irradiation unit, the fluting surrounds jointly with the backboard The frame form second irradiation unit, the remaining part of housing is then grounded.

4. antenna structure as claimed in claim 3, it is characterised in that：The frame comprise at least terminal part, the first sidepiece with And second sidepiece, first sidepiece are connected the both ends of the terminal part with second sidepiece respectively, the fluting is at least set It is placed in the terminal part, the linkage section vertical connection to the backboard, the first radiant section vertical connection to the connection Section extends close to the side of first sidepiece, and along the parallel terminal part and close to the direction of first sidepiece, described Second radiant section vertical connection along the parallel terminal part and is leaned on to the junction of the linkage section and first radiant section The direction extension of nearly second sidepiece, second radiant section are located along the same line with first radiant section, and with institute State linkage section and be collectively forming T-type structure.

5. antenna structure as claimed in claim 1, it is characterised in that：The antenna structure also includes connecting portion, the connection The one end in portion is electrically connected to first irradiation unit, and the other end is electrically connected to second irradiation unit, to cause first spoke Portion is penetrated to electrically connect with the second irradiation unit.

6. antenna structure as claimed in claim 5, it is characterised in that：After electric current is from the feeding portion feed-in, electric current flows through First irradiation unit, and first radiant section is flowed into by the connecting portion, then pass through the linkage section and the backboard Ground connection, and then cause first irradiation unit, the connecting portion to excite a first mode to produce jointly with first radiant section The radiation signal of raw first frequency range, the first mode are that LTE-A is low, intermediate frequency mode；After electric current is from the feeding portion feed-in, Electric current flows through first irradiation unit close to the part of the connecting portion, and flows into first radiant section by the connecting portion And second radiant section, then first irradiation unit is coupled to by second radiant section, finally by the grounding parts Ground connection, and then cause first irradiation unit to excite a second mode jointly with second radiant section to produce the second frequency range Radiation signal, the second mode are LTE-A high frequency mode, and the frequency of second frequency range is more than the frequency of first frequency range Rate.

7. antenna structure as claimed in claim 1, it is characterised in that：The antenna structure also includes switching circuit, described to cut The one end for changing circuit is electrically connected to the grounding parts, described to cut to be electrically connected to first irradiation unit by the grounding parts The other end for changing circuit is electrically connected to the backboard, and the switching circuit is adjusting the frequency range of the antenna structure.

8. antenna structure as claimed in claim 7, it is characterised in that：The switching circuit includes switch unit and multiple switchings Element, the switch unit are electrically connected to first irradiation unit by the grounding parts, phase between the multiple switching device It is mutually in parallel, and its one end is electrically connected to the switch unit, the other end is electrically connected to the backboard, by controlling the switching single The switching of member so that the switch unit switches to different switching devices, and then adjusts the frequency range of the antenna structure.

9. antenna structure as claimed in claim 1, it is characterised in that：Radio communication device is using carrier aggregation technology and uses First irradiation unit and the second irradiation unit receive or sent wireless signal in multiple different frequency ranges simultaneously.

10. antenna structure as claimed in claim 1, it is characterised in that：The single sheet metal that the backboard is formed in one, institute State backboard to be directly connected to frame, there is no space between the backboard and frame, it is any for dividing that setting is had no on the backboard Cut the fluting, broken string or breakpoint of the insulation of the backboard.

11. a kind of radio communication device, including the antenna structure as any one of claim 1-10.

12. radio communication device as claimed in claim 11, it is characterised in that：It is single that the radio communication device also includes display Member, the front frame, backboard and frame form the shell of the radio communication device, and the front frame is provided with opening and is used to house The display unit, the display unit have display plane, and the display plane is exposed to the opening, and the display plane and institute Backboard is stated to be arranged in parallel.

13. radio communication device as claimed in claim 11, it is characterised in that：The radio communication device also connects including earphone Mouth mold block and USB module, the first perforate and the second perforate are further opened with the frame, first perforate connects with the earphone Mouth mold block is corresponding, to cause the earphone interface module to expose from first aperture segment；Second perforate and institute It is corresponding to state USB module, to cause the USB module to expose from second aperture segment.

14. radio communication device as claimed in claim 11, it is characterised in that：The radio communication device also includes double shootings Head mould group and flash lamp, the promising perforate for appearing the dual camera module and flash lamp is set on the backboard.