CN102610915B - Antenna - Google Patents

Abstract

A kind of antenna, including antenna body and metal foil, antenna body includes the first radiating element and the second radiating element, first radiating element and the second radiating element form an opening, it is also correspondingly formed the groove of an adjusting on metal foil, opening is communicated with groove, and the level of impedance match of antenna is adjusted by adjusting the size of groove.

Description

Antenna

[technical field]

The present invention is in relation to a kind of antenna, more particularly to a kind of small-sized matched antenna of adjustable impedance.

[background technique]

Portable electronic device (such as laptop) usually realizes wireless data transmission using antenna.But antenna Influenced in the entire system by its environment it is very big, so mutually isostructural antenna in different laptops produced by It is functional also can be due to the difference of background condition by extreme influence.Therefore, in different laptops, identical excimer The Antenna Design of reason, which must be finely tuned, can possess normal function.Planar inverted " F " type antenna (Planar Inverted- F Antenna, PIFA) it is a kind of small size antenna for being usually used in mobile communication terminal.It is characterized in that size is small, and it is light-weight, it can To effectively reduce the space occupied and manufacturing cost, it is easy to accomplish double frequency or multifrequency.Another critically important feature is that it has both water Mean pole and vertical polarization are suitable for the more complicated place of electromagnetic environment.General antenna structure includes irradiation unit, connection Portion and grounding parts, but previous antenna is not easy to adjust the impedance matching of antenna.

Thus, it is necessary to propose the new antenna structure of one kind to solve described problem.

[summary of the invention]

The object of the present invention is to provide a kind of antennas, with the matched structure of adjustable impedance.

In order to achieve the object, following technical scheme can be used in inventive antenna: a kind of antenna comprising antenna body and Metal foil, the antenna body include the first radiating element and the second radiating element, the first radiating element and the second radiating element An opening is formed, is also correspondingly formed the groove of an adjusting on metal foil, the opening, groove communicate.

Compared with prior art, the invention has the following advantages that forming the groove of an adjusting in grounding parts, pass through The size of groove is adjusted to adjust the effect of Antenna Impedance Matching.

[Detailed description of the invention]

Fig. 1 is the three-dimensional combination figure of inventive antenna.

Fig. 2 is the unit assembly drawing of inventive antenna.

Fig. 3 is stereogram exploded view shown in FIG. 1.

Fig. 4 is the stereogram exploded view of another angle shown in Fig. 3.

Fig. 5 is the stereogram exploded view of another angle shown in Fig. 4.

Fig. 6 is the voltage standing wave ratio figure of inventive antenna.

[specific embodiment]

Referring to figs. 1 to shown in Fig. 5, inventive antenna 100 includes antenna body 1, plastic stent 2 and metal foil 3.

Antenna body 1 includes the first radiating element 11 and the second radiating element 12, wherein the first radiating element 11 includes edge The first irradiation unit 110 that longitudinally extends and the second irradiation unit 111 extended along longitudinally, the second irradiation unit 111 with First irradiation unit, 110 place plane is vertical, and 111 to the first irradiation unit 110 of the second irradiation unit is short；One interconnecting piece 13 connection first Irradiation unit 110 and the second irradiation unit 111；Second radiating element 12 includes radiation arm 120, linking arm 121 and grounding parts 122, Wherein radiation arm 120 is to extend along 110 direction of the first irradiation unit, and be spaced and be arranged with the first irradiation unit 110；Linking arm 121 extend along the horizontal direction perpendicular to radiation arm 120, and connect radiation arm 120 and grounding parts 122, wherein 122 edge of grounding parts Longitudinally extends；First irradiation unit 110 works in lower first frequency range, and the second irradiation unit 111 is worked in radiation arm 120 Higher second frequency range.

Interconnecting piece 13 includes the first linkage section 130, the second linkage section 131 and third linkage section 132, wherein the first connection Section 130 connects the first irradiation unit 111 and the second linkage section 131, and 131 to the first linkage section 130 of the second linkage section is narrower, and first connects Section 130, third linkage section 132 are connect along the direction extension perpendicular to the first irradiation unit 110, the second linkage section 131 is L-shaped, and second Linkage section 131 is vertical with the first linkage section 130, third linkage section 132；Third linkage section 132 connects the second linkage section 131 and connects Ground portion 14, wherein grounding parts 14 and the setting of the interval of grounding parts 122 form an opening (not indicating).

Plastic stent 2 includes upper surface 20 and a rectangular v notch v 21, and notch 21 is located at the side of opening；Antenna body 1 package plastic stent 2, the first irradiation unit 110,120 place plane of radiation arm are parallel with grounding parts 14,122 place planes, and tight The side (not indicating) of plastic stent 2 is pasted, grounding parts 14,122 parts are exposed to 21 outside of notch.

Metal foil 3 is the aluminium foil or copper foil pasted made of one cutting comprising along 110 place plane of the first irradiation unit The main part 31 that the docking section 30 of extension and 110 place plane of vertical first irradiation unit extend；Wherein grounding parts 3 form one Groove 32 corresponding with notch 21, wherein groove 32 is integrally cut by metal foil 3, section it is L-shaped and with plastics branch The notch 21 of frame 2 communicates, and docking section 30 is abutted with grounding parts 14,122.

Claims (8)

1. a kind of antenna comprising antenna body and metal foil, the antenna body include the first radiating element and the second radiation Unit, first, second radiating element all have grounding parts, it is characterised in that: form an adjusting on metal foil To adjust the groove of the Antenna Impedance Matching, before assembling, first radiating element and the second radiating element are separated from each other setting, First radiating element and the second radiating element are separately assembled to the metal foil, first spoke in the two sides of the groove The grounding parts of the grounding parts and the second radiating element of penetrating unit are in be vertically arranged and extend along longitudinally, and described first, the The grounding parts of two radiating elements are in the same plane and are formed between each other an opening, and the opening communicates simultaneously with former trenches And the length scale of the two is consistent, first, second radiating element is connected to the groove by respective grounding parts Two sides and realize electric connection, the metal foil is integrated the aluminium foil or copper foil of cutting, which includes docking section and edge It is flat where the grounding parts of the main part that the direction in vertical butt joint portion extends, the docking section and first, second radiating element Face is parallel, and the groove is L-shaped and runs through the docking section, the ground connection of the docking section and first, second radiating element Portion abuts.

2. antenna as described in claim 1, it is characterised in that: the section of the groove is L-shaped, and by the metal foil one It cuts.

3. antenna as claimed in claim 2, it is characterised in that: first radiating element includes the first irradiation unit and the second spoke Portion is penetrated, first irradiation unit is parallel with docking section, and plane where the second irradiation unit is vertical with the first irradiation unit, and the second radiation Portion is shorter than the first irradiation unit.

4. antenna as claimed in claim 3, it is characterised in that: second radiating element include radiation arm, linking arm and The above-mentioned grounding parts of above-mentioned metal foil are connected to, wherein linking arm extends along the direction of vertical first irradiation unit, and connects radiation Arm and grounding parts.

5. antenna as claimed in claim 4, it is characterised in that: the radiation arm and the first irradiation unit are separated from each other setting and position In in the same plane, plane is parallel with plane where the first irradiation unit where the grounding parts.

6. antenna as claimed in claim 5, it is characterised in that: first radiating element further includes interconnecting piece, the interconnecting piece Including the first linkage section, the second linkage section and third linkage section, wherein first linkage section connects the first irradiation unit, it is described Third linkage section connects the grounding parts of the first radiating element, and second linkage section is L-shaped and its both ends is separately connected described the One, third linkage section.

7. antenna as claimed in claim 6, it is characterised in that: second irradiation unit is extended vertically by the second linkage section, And it is vertical with plane where the first irradiation unit, the first linkage section, third linkage section extend along the direction of vertical first irradiation unit.

8. antenna as described in claim 1, it is characterised in that: first radiating element and the second radiating element are by a plastics Bracket support, plastic stent include a notch, and wherein notch is communicated with the opening, groove.