Many antenna modules and wireless mobile InterWorking Equipment thereof
Technical field
The present invention relates to the wireless telecommunications system field, more particularly, relate to a kind of many antenna modules and wireless interconnecting device thereof.
Background technology
In the wireless telecommunication system, the user continues QoS service quality and the strong requirement of antijamming capability of raising, high request to the wireless telecommunication system data throughout.As, in the communication systems such as IEEE802.11a/g/b/n/ac, WAP (wireless access point) (AP) is mutual data transmission by Radio Link and between the one or more wireless user equipments.This wireless user equipment may be subject to variation in other access point, other wireless communication apparatus, the wireless link environment between this access point and this long-range acceptance point or interference etc. easily.This interference may cause the user to stand so that the transmission of data ability of Radio Link reduces greatly or the error rate greatly improves and QoS service quality is relatively poor.
Radio-based electronic devices for example portable computer and hand-hold electronic equipments has become more and more popular.Equipment such as these has wireless communication ability usually.For example, some electronic equipments can use for example cell phone circuit of long distance wireless communication circuit, with cellular telephone band (for example, the cellular frequency band of main global system for mobile communications or the GSM) communication that utilizes 850MHz, 900MHz, 1800MHz and 1900MHz.Also can use long distance wireless communication processing of circuit 2100MHZ frequency band and other frequency band.Electronic equipment can be processed and near equipment communicate by letter with short-range wireless communication link.For example, the wireless telecommunications electronic equipment can use Wi-Fi (IEEE 802.11) frequency band (sometimes being called the local area network (LAN) frequency band) of 2.4GHz and 5.8GHz and Bluetooth (bluetooth) frequency bands for communication of 2.4GHz.
The present especially Wireless Mobile Internet high speed development based on agreements such as IEEE 802.11a/g/b/n/ac, Wireless Mobile Internet equipment, system and subsystem propose higher technical parameter (parameters such as yield value, standing wave and many isolation between antennas) requirement to antenna device, and antenna also becomes restriction line mobile internet device, system and the unified important technology bottleneck of subsystem.Therefore need to be provided for improved antenna, antenna system and the application thereof of radio-based electronic devices, for example, its application comprises the application such as radio reception device, MIMO communication apparatus and wireless routing device.
Summary of the invention
The technical problem to be solved in the present invention is, improves antenna technology parameter (parameters such as yield value, standing wave and many isolation between antennas) requirement; With and use, such as radio reception device, MIMO communication apparatus and wireless routing device overall performance (data uplink, downstream rate and throughput etc.).Therefore, the invention provides a kind of many antenna modules and wireless interconnecting device thereof that can be applied in the MIMO communication device.
A kind of many antenna modules comprise:
Reflecting medium surface for the radio wave that reflects described many antenna module uses;
Be arranged at lip-deep at least two antenna elements of described reflecting medium;
Be arranged at the lip-deep at least one isolator of described reflecting medium, be used for each antenna elements of described many antenna modules respectively employed radio wave mutually isolate.
Further, described antenna element comprises a medium substrate and an antenna conductor that is arranged at described medium substrate surface.
Further, described medium substrate is worked under the frequency less than 8GHz, has the electrical loss tangent value less than 0.04.
Further, described medium substrate is worked under 2.4GHz and/or 5.8GHz frequency, all has the electrical loss tangent value less than 0.009.
Further, described medium substrate is epoxy resin board, polyfluortetraethylene plate, Teflon plate, halogen plate, Rogers's high frequency plate or ceramic wafer.
Further, the described medium substrate composite panel that two or more material forms of serving as reasons.
Further, described composite panel comprises the cross-linking reaction compound of fiber cloth and epoxy resin.
Further, described antenna element is the metal antenna oscillator.
Further, described metal antenna oscillator is sheet metal, and hollow out has antenna structure on the described sheet metal.
Further, described reflecting medium surface is made by electric conducting material.
Further, described reflecting medium is surperficial for having the conductive micro structures of geometrical pattern.
Further, the size of described conductive micro structures is less than 1/2nd of the corresponding wavelength of the employed radio wave frequency of described antenna element.
Further, the size of described conductive micro structures is less than 1/4th of the corresponding wavelength of the employed radio wave frequency of described antenna element.
Further, the size of described conductive micro structures is less than the sixth of the corresponding wavelength of the employed radio wave frequency of described antenna element.
Further, described reflecting medium surface selects single or double to cover in the Copper Foil medium substrate any one.
Further, any one in plane or the on-plane surface can be selected in described reflecting medium surface.
Further, described isolator is related with described reflecting medium surface electrical couplings.
Further, described antenna conductor comprises a current feed department, holding wire, transmitting station and opening coupling loop; Described transmitting station is arranged in the described opening coupling loop and corresponding the opening part of described opening coupling loop, opening and transmitting station that described holding wire one end passes described opening coupling loop are integral setting, and described holding wire one end arranges outside the described opening coupling loop and with described current feed department and links to each other.
Further, described antenna conductor comprises a current feed department, holding wire, transmitting station and closed coupled structure, and described transmitting station is electrically connected described closed coupled structure or the related described closed coupled structure of coupling.
Further, described holding wire arranges along described closed coupled structure edge, and forms endways described transmitting station.
Further, described closed coupled structure is nested with " mountain " word shape topological structure by " mouth " word shape topological structure and forms this Compound Topology structure.
Further, described closed coupled structure is selected in a complementary split ring resonator topological structure, complementary helix topological structure, complementary folding line topological structure, complementary opening helical ring topological structure and the two opening helical ring topological structures any one.
Further, the topological structure of described closed coupled structure by any one or several structure in described complementary split ring resonator topological structure, complementary helix topological structure, complementary folding line topological structure, complementary opening helical ring topological structure and the two opening helical ring topological structures derive, compound or a topological structure that the group battle array obtains.
The invention still further relates to a kind of wireless mobile interconnect device with many antenna modules, comprise radio circuit, baseband signal processing unit, control unit, memory access, power circuit and a housing; Described housing comprises the first inner space setting up and down and the second inner space; Described wireless mobile interconnect device also comprises antenna module more than one and is arranged at described the first inner space; Described many antenna modules are such as each described many antenna modules of claim 1 to 23.
Further, described radio circuit, baseband signal processing unit, control unit, memory access, power circuit are arranged at described the second inner space.
Compared to prior art, beneficial effect of the present invention is as follows: described many antenna modules comprise a public reflecting surface and the some antenna elements of described public reflecting surface are set, then some antenna elements isolated mutually.So that the high number transfer rate of the type performances such as described many antenna modules are multiplexing based on applied wireless data transceiving control mode implementation space, space diversity, wave beam forming.Thereby provide a kind of wireless high-speed mobile internet device based on agreements such as IEEE802.11a/g/b/n/ac, system and subsystem antenna module.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is the perspective diagram of wireless mobile InterWorking Equipment of the present invention;
Fig. 2 is the illustraton of model of many antenna modules one execution mode shown in Figure 1;
Fig. 3 is the plane graph of many antenna modules downside shown in Figure 2;
Fig. 4 is the floor map of an antenna element in many antenna modules shown in Figure 2;
Fig. 5 is the illustraton of model of many another execution modes of antenna module shown in Figure 1;
Fig. 6 is the illustraton of model of many antenna modules the 3rd execution mode shown in Figure 1;
Fig. 7 is the floor map that many antenna modules are used another antenna element shown in Fig. 2 or 5;
Fig. 8 is that the transmitting station length of the antenna conductor of antenna element shown in Figure 7 is variable illustrative schematic plan view;
Fig. 9 be antenna conductor shown in Figure 7 long and wide be variable illustrative schematic plan view;
Figure 10 a is a kind of split ring resonator topological structure plane graph that antenna element of the present invention comprises;
Figure 10 b is a kind of complementary topological structure plane graph of split ring resonator topological structure shown in Figure 10 a;
Figure 11 a is a kind of helix topological structure plane graph that antenna element of the present invention comprises;
Figure 11 b is a kind of complementary topological structure plane graph of helix topological structure shown in Figure 11 a;
Figure 12 a is the plane graph of a kind of folding line topological structure of comprising of antenna element of the present invention;
Figure 12 b is a kind of complementary topological structure plane graph of folding line topological structure shown in Figure 12 a;
Figure 13 a is the plane graph of a kind of opening helical ring topological structure of comprising of antenna element of the present invention;
Figure 13 b is a kind of complementary topological structure plane graph of the topological structure of opening helical ring shown in Figure 13 a;
Figure 14 a is a kind of pair of opening helical ring topological structure plane graph that antenna element of the present invention comprises;
Figure 14 b is a kind of complementary topological structure plane graph of two opening helical ring topological structures shown in Figure 14 a;
Figure 15 is the geometry of split ring resonator topological structure shown in Figure 10 a schematic diagram of deriving;
Figure 16 is the geometry schematic diagram of deriving in the complementary split ring resonator topological structure shown in Figure 10 b;
Figure 17 is the schematic diagram of deriving of complementary split ring resonator topological structure shown in Figure 10 b;
Figure 18 a is that three compound deriving of complementary split ring resonator topological structure obtain a kind of topological structure plane graph shown in Figure 10 b;
Figure 18 b is a kind of complementary topological structure plane graph of topological structure shown in Figure 13 a.
Embodiment
The present in detail with reference to the accompanying drawings middle embodiment that describes.For complete understanding the present invention, numerous details have been mentioned in the following detailed description.But it should be appreciated by those skilled in the art that the present invention can need not these details and realize.In other embodiments, be not described in detail known method.Process, assembly and circuit are in order to avoid unnecessarily make embodiment fuzzy.
See also Fig. 1, be the perspective diagram of wireless mobile InterWorking Equipment of the present invention.The wireless mobile InterWorking Equipment comprises a housing 103 and the radio circuit 11, baseband signal processing unit 16, control unit 13, memory access 14, power circuit 15 and the many antenna modules 2 that are arranged in the housing 103.The wireless mobile InterWorking Equipment also comprises an electromagnetic isolation part 1, is used for described housing 103 inner spaces are divided into bilevel the first inner space 100 and the second inner space 101.Described radio circuit 11, baseband signal processing unit 16, control unit 13, memory access 14 and power circuit 15 are incorporated on the pcb board and arrange in the second inner space 101 of described housing 103, described many antenna modules 2 are arranged at the first inner space 100 of described housing 103, and are connected to radio circuit 11 by coaxial line 105 respectively.Like this circuit part (comprising radio circuit 11, baseband signal processing unit 16, control unit 13, memory access 14 and power circuit 15) and many antenna modules 2 are isolated mutually by electromagnetic isolation part 1, to prevent many antenna modules 2 by the circuit part electromagnetic interference, so that many built-inization of antenna module reach the same performance effect with external antenna.
The wireless mobile InterWorking Equipment comprises radio circuit 11, baseband signal processing unit 16, control unit 13, memory access 14 and power circuit 15.Memory access 14 can comprise the memory device that one or more are dissimilar, such as hard disk drive storage devices, nonvolatile storage (for example, flash memory or other EPROM), volatile memory (for example, static state or dynamic random access memory) etc.Can be used for the operation of wireless mobile InterWorking Equipment at baseband signal processing unit 12.Baseband signal processing unit 16 can be based on the integrated circuit that is fit to such as microprocessor and other.Adopt a kind of suitable layout, the software that memory access 14 stores can be used to the software on the wireless mobile InterWorking Equipment, such as the GPRS agreement etc., is used for the control function of control radio-frequency power amplifier and other radio-frequency (RF) transceiver circuit etc.
Radio circuit 11 can comprise radio frequency (RF) transceiver circuit that formed by one or more integrated circuits, power amplifier circuit, low noise input amplifier, passive RF assembly, one or more antenna and for the treatment of other circuit of RF wireless signal.Can also make to use up and send wireless signal (for example, using infrared communication).
In other embodiments, described radio circuit 11 can comprise that also processing is used for the 2.4GHz of WiFi (IEEE 802.11) communication and the transceiver circuit of 5.8GHz frequency band and 2.4GHz Bluetooth communication frequency band.Radio circuit 11 can also comprise cell phone transmitting-receiving radio circuit, for the treatment of the radio communication of cellular telephone band, and the frequency ranges of data (as an example) of the GSM frequency band of 850MHz, 900MHz, 1800MHz and 1900MHz and 2100MHz for example.If necessary, described radio circuit 11 can comprise for other short distance and long circuit apart from Radio Link.Can comprise global positioning system (GPS) receiver device, Beidou antenna, the radio-circuit that is used for received RF and TV signal, call circuit etc. such as radio circuit 11.In WiFi and Bluetooth link and other short range links, the normal operation wireless signal tens or the scope of hundreds of foot in transmit data.In cellular phone link or other long-distance link, the normal operation wireless signal transmits data in the scope of several thousand feet or several miles.
Consulting Fig. 2, is the illustraton of model of many antenna module one execution modes; Described many antenna modules 2 comprise at least one isolator 12 and at least two antenna elements 10 of a reflecting medium surface 9, fixing described reflecting medium surface 9 one sides.
Described reflecting medium surface 9 is used for reflecting the radio wave that described many antenna modules 2 use.Use therein radio wave refers to comprise the electromagnetic wave that each antenna element produces in the multi-thread assembly or the electromagnetic wave that receives at each antenna element.In certain embodiments, described reflecting medium surface 9 is arranged on electromagnetic isolation part 1 surface, and described reflecting medium surface 9 can adopt copper or other electric conducting material to make, and reflecting medium surface 9 can a nonplanar surface.Be with being appreciated that, reflecting medium surface 9 can have discrete point, be processed into network structure or offer the dielectric surface that the mode such as porose realizes the reflection wave function such as reflecting medium surface 9, wherein 1/10th of the wavelength of radio wave that uses less than described many antenna modules of the size in network structure or hole.
In the present embodiment, electromagnetic isolation part 1 is made by metal material, and namely electromagnetic isolation part 1 surface that makes of conductive metallic material becomes described reflecting medium surface 9.In other embodiments, described electromagnetic isolation part 1 can select the medium substrate of two-sided copper foil covered to be processed to form, and described Copper Foil consists of described reflecting medium surface 9.Reflecting medium surface 9 is as long as made by electric conducting material, and its shape is not done restriction.The reflecting medium surface can be for having the conductive micro structures of geometrical pattern, and the size of described conductive micro structures is less than 1/2nd of the corresponding wavelength of the employed radio wave frequency of antenna sets, and preferably less than 1/4th, the best is less than sixth.
Consulting Fig. 3, is the plane graph of many antenna modules downside.Reflecting medium surface 9 and electromagnetic isolation part 1 are offered respectively many group perforation 30, first kind fixing hole 31 and Equations of The Second Kind fixing hole 32.In the present embodiment, described first kind fixing hole 31 both sides of described each group perforation 30 that distribute symmetrically and in couples.Described each antenna element 11 is by on every a pair of first kind fixing hole 31 fixing described reflecting medium surfaces 9.Described isolator 12 is by on the Equations of The Second Kind fixing hole 32 fixing described reflecting medium surfaces 9.
In the present embodiment, described isolator 12 is installed on the middle position of described a plurality of antenna element 10a, 10b and 10c.In other embodiments, the installation site, position of described isolator 12 is transformable.Described isolator 12 is related with described reflecting medium surface 9 electrical couplings.Described isolator 12 comprises three pins 41, and described three pins 41 are plugged in respectively in three described Equations of The Second Kind fixing holes 32, and each pin 41 and described reflecting medium surface 9 short circuits.Described at least one isolator 12 be used for each antenna element 10a, 10b of described many antenna modules 2 or 10c respectively employed radio wave mutually isolate.That is, when the antenna emitting electromagnetic wave, described isolator 12 also is used as the reflector of each antenna element 11 simultaneously.Be understandable that described isolator 12 can be for a plurality of, and made by copper, aluminium or other electric conducting materials.In the present invention, described isolator 12 along with needs designs is of all kinds.In the present embodiment, described isolator 12 comprises three arms that mutually open 120 degree angles, and the outside of each arm forms certain corner cut, so that described reflecting medium surface 9 top solid spaces are divided into the three equal parts solid space.In other embodiments, offer at least one slit 51 on each arm of described isolator 12, do not affect isolation effect when saving material, as shown in Figure 5.
Consult Fig. 4, the illustraton of model of many antenna module the 3rd execution modes.Each antenna element 10 of many antenna modules 2 comprises a medium substrate 3 and is arranged at described medium substrate 3 skin antenna conductors 36.
Medium substrate is worked under the 8GHz frequency, has the electrical loss tangent value less than 0.04.The preferable medium substrate is worked under 2.4GHz and/or 5.8GHz frequency, and all has the electrical loss tangent value less than 0.009 under this frequency.Medium substrate can be epoxy resin board, polyfluortetraethylene plate, Teflon plate, halogen plate, Rogers's high frequency plate or ceramic wafer.Certainly, the medium substrate composite panel that two or more material forms of also can serving as reasons for example is the cross-linking reaction compound of fiber cloth and epoxy resin.The preferable medium substrate comprises glass-fiber-fabric, epoxy resin and comprises compound with described epoxy resin generation cross-linking reaction.
In the present embodiment, medium substrate 3 one ends of described antenna element 10 are convexly equipped with a pair of fixing feet 21.Described fixing feet 21 stretches in the described first kind fixing hole 31 antenna element 10 is fixed in 9 tops, described reflecting medium surface.
Described antenna conductor 36 comprises a current feed department 5, holding wire 4, transmitting station 6 and opening coupling loop 7.Described transmitting station 6 is arranged in the described opening coupling loop 7 and corresponding the opening part of described opening coupling loop 7, opening and transmitting station 6 that described holding wire 4 one ends pass described opening coupling loop 7 are integral setting, and described holding wire 4 one ends arrange outside the described opening coupling loop 7 and with described current feed department 5 and link to each other.In the present embodiment, described radio circuit 11 signals to be transmitted are sent to current feed department 5 by coaxial line 105, and described coaxial line 105 passes described perforation 30 and is electrically connected to current feed department 5.
Based on the Antenna Design requirement, described antenna conductor 36 is fit to be designed to the directed radiation conductor, as referring to shown in Figure 6 be the illustraton of model of many antenna module the 3rd execution modes.Antenna conductor 36 in the present embodiment comprises a current feed department 5, holding wire 4, transmitting station 6 and closed coupled structure 7, and described closed coupled structure 7 is nested with " mountain " word shape topological structure by " mouth " word shape topological structure and forms this Compound Topology structure.Described holding wire 4 arranges along described this Compound Topology structural edge, and forms endways described transmitting station 6.
Please in the lump with reference to figure 7 and 8, floor map and transmitting station length that many antenna modules are used another antenna element are variable illustrative schematic plan views.Antenna conductor 36 in the present embodiment comprises a current feed department 5, holding wire 4, transmitting station 6 and closed coupled structure 7.Described closed coupled structure 7 is a complementary split ring resonator topological structure.Described transmitting station 6 is electrically connected described closed coupled structure 7 (shown in Figure 7) or the related described closed coupled structure 7 (shown in Figure 8) of coupling.
Please refer to Fig. 9, be the closed coupled structure 7 topological schematic diagrames of antenna conductor 36 of the present invention.Different topological structures is in these parameters of distance s of changing length d, width w and the topological structure etween the lines of topological structure integral body according to simulation softwares such as CST, HFSS, simultaneously topological structure wiring forms the number of turns g of helix, and the number of turns g of helix shown in Figure 9 is 2.Realize the design object antenna by regulating above-mentioned parameter, be optimized so that affect the parameter of antenna conductor 36.In addition, the size of holding wire 4 length of antenna conductor 36, width, ground unit also is the parametric variable of development and Design antenna, therefore regulate above-mentioned parameter according to antenna indexs such as the resonance band of target, directivity, gains, with realize target antenna performance index.
In order to satisfy the requirement of antenna development and Design, develop difform topological structure to adapt to the Antenna Design demand, please refer to Figure 10 to difform topological structure shown in Figure 14, these described topological structures adopt topological structure and the derived structure thereof in the various artificial electromagnetic materials.Topological structure can be selected complementary split ring resonator topological structure (shown in Figure 10 a, 10b) as described, and namely the shape of two kinds of topological structures forms complementation shown in Figure 10 a, 10b.This kind design is equivalent to has increased antenna physical length (the physical length size does not increase), like this can be so that the antenna exploitation is conducive to miniaturization.
Topological structure shown in Figure 10 a and the 10b forms a pair of complementary split ring resonator topological structure mutually.Wherein the topological structure shown in Figure 10 b is the split ring resonator topological structure, and Figure 10 a is the complementary topological structure of the topological structure shown in Figure 10 b.Described topological structure also can be selected a pair of complementary helix topological structure, a pair of complementary folding line topological structure shown in Figure 12 a and 12b, a pair of complementary opening helical ring topological structure shown in Figure 13 a and 13b and a pair of complementary two opening helical ring topological structures shown in Figure 14 a and 14b shown in Figure 11 a and 11b.
The topological structure of closed coupled structure 7 can by a kind of or by several structures in front derive, compound or a topological structure that the group battle array obtains.Deriving is divided into two kinds, and a kind of is that geometry is derived, and another kind is that expansion is derived.Geometry is herein derived and is referred to that function class derives like, variform structure, for example by square frame class formation derive open curve topological structure, open-delta topological structure, opening Polygon Topology structure and other different polygon class formation, take the opening resonance becket structure shown in Figure 10 a as example, Figure 15 is its geometry schematic diagram of deriving.By as take the opening resonance becket structure shown in Figure 10 b as example, Figure 16 is its geometry schematic diagram of deriving.Except above-mentioned two kinds from geometry is derived, also comprise topological structure self extended and derive, please refer to metal deriving mode shown in Figure 17, with the opening resonance becket structure shown in Figure 10 b for carrying out self extension deriving mode.
Above-mentioned expansion is derived namely on the basis of the topological structure of Figure 10 to Figure 14 mutually, and complex superposition forms topological structure; Compound referring to herein, at least two the topological structure complex superposition extremely shown in Figure 14 such as Figure 10 form a Compound Topology structure.Compound Topology structure shown in Figure 18 a is by three compound being nested to form of complementary split ring resonator topological structure shown in Figure 10 b.Thereby obtain a kind of complementary Compound Topology structure (shown in Figure 18 b) by the topological structure shown in Figure 18 a.
A current feed department 5, holding wire 4, transmitting station 6 and the closed coupled structure that described antenna conductor comprises or opening coupled structure are by any one is arranged on the surface of described medium substrate in laser-engraving technique and the etching technique.Antenna element of the present invention also can be the metal antenna oscillator, and hollow out has the sheet metal of antenna structure.Antenna element can also be spring oscillator etc.
Described many antenna modules comprise a public reflecting surface and the some antenna elements of described public reflecting surface are set, then some antenna elements isolated mutually.So that the high number transfer rate of the type performances such as described many antenna modules are multiplexing based on applied wireless data transceiving control mode implementation space, space diversity, wave beam forming.Thereby provide a kind of wireless high-speed mobile internet device, system and subsystem antenna module based on agreements such as IEEE 802.11a/g/b/n/ac.
The above is described embodiments of the invention by reference to the accompanying drawings; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.