CN104577300A - Multi-branch mobile terminal antenna and mobile terminal thereof - Google Patents
Multi-branch mobile terminal antenna and mobile terminal thereof Download PDFInfo
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Abstract
The invention provides a multi-branch mobile terminal antenna. The mobile terminal antenna comprises a main antenna body and a passive antenna body, and is characterized in that the passive antenna body comprises two or more passive branches. The double-branch or multi-branch passive antenna body is introduced into the mobile terminal antenna, multiple resonance points are formed in the strong coupling, weak coupling and multi-branch manner, and the band width can be effectively expanded. Meanwhile, the invention further provides a mobile terminal adopting the multi-branch mobile terminal antenna; the mobile terminal has favorable band width expanding performance, and can be adaptive to the multi-band application requirement.
Description
Technical field
The present invention relates to a kind of multiple-limb mobile terminal antenna and mobile terminal thereof
Background technology
Miniaturization, the multifrequency of mobile terminal propose stern challenge to Antenna Design.Such as, the shortcoming that common multiband aerial has high and low frequency branch to condition each other in antenna performance, generally adopts low frequency branch to surround high-frequency branch in design, forms the scheme of " G " font structure.But above-mentioned " G " font structure exists obvious shortcoming: govern low frequency bandwidth on the one hand, require larger headroom area on the other hand.Along with diminishing of mobile terminal thickness, the apical side height of antenna holder also becomes more and more lower, and transmitting, the reception of antenna can only utilize the end face of headroom.But due to the design that mobile terminal is inner compact, make antenna available headroom end face less or elongated, as the low frequency bandwidth adopting above-mentioned " G " font structure antenna just can not reach best.
Summary of the invention
The first object of the present invention is: the problem that the high and low frequency range branch for communication antenna conditions each other in performance, provides that a kind of structure is simple, the communication antenna of excellent electrical properties.
Its technical scheme adopted is as follows:
A kind of multiple-limb mobile terminal antenna, comprises a main antenna body and a passive antenna body, it is characterized in that: described passive antenna body includes the parasitic branch of more than two-way or two-way.
In such scheme, the high-frequency branch correspondence of main radiator produces a high-frequency resonant point, passive antenna body be may correspond to by coupling and produces two or more high-frequency resonant points, greatly extends high frequency bandwidth, solves the general narrower problem of mobile terminal high band bandwidth.
As the improvement of such scheme, the present invention also comprises following technical scheme:
Further, described passive antenna body comprises one near the first parasitic branch of described main antenna body, and away from the second parasitic branch of described main antenna body.Described first parasitic branch, the second parasitic branch correspondence produce the first resonance point, the second resonance point, and independent resonant point makes the impact between each frequency range further be reduced.
Further, described main antenna body is provided with a high-frequency branch, and described first parasitic branch near described high-frequency branch, and forms coupling with it.
Further, described first parasitic branch extends along described high-frequency branch bearing of trend.Such scheme can ensure entire physical comparatively prolate shape, and unlike tradition " G " font antenna, can utilize the headroom area in terminal better.
Further, electric capacity or capacitive element is connected with between the high-frequency branch of described main antenna body and the first parasitic branch.
Further, be formed with half between the high-frequency branch of described main antenna body and the first parasitic branch and close gap, above or below described gap, be provided with coupling piece.
In such scheme, by setting up electric capacity, capacitive element or coupling piece, for strengthening the stiffness of coupling between higher frequency radiating branch and the first parasitic branch, to meet the demand of radiation.Meanwhile, also make the debugging of aerial signal more convenient, flexible.
Further, described passive antenna body also comprises a trixenie branch, and this trixenie branch is created on the connecting portion of the first parasitic branch and the second parasitic branch, and described trixenie branch is near the first parasitic branch and extend along its bearing of trend.
According to practical application and frequency range demand, by increasing passive antenna branch to increase corresponding high-frequency resonant point, expanding high-frequency bandwidth.And, also can reduce the impact of newly-increased frequency range and other frequency range to greatest extent.
In sum, innovative point of the present invention is:
1, introduce two branch or multiple-limb passive antenna body, form multiple resonance point by the mode of strong-and weak-coupling, different branch, effectively can expand bandwidth.Meanwhile, except the high-frequency resonant point of main radiator, all the other high-frequency resonant points are produced by passive antenna body, reduce further the interference between low-and high-frequency segment signal, easilier than ordinary antennas take into account high band and low-frequency range, reduce the environmental requirement of antenna.
2, the design of independent passive antenna body, adds the independence between each resonance point, makes antenna have stronger anti-interference, is convenient to the independence debugging carrying out each frequency range.
3, simultaneously, the gap size between passive antenna body and antenna body be rationally set and set up coupling element, effectively can adjust the degree of association of resonance point, thus optimizing its associating bandwidth of raising.
The second object of the present invention is the mobile terminal proposing the above-mentioned multiple-limb mobile terminal antenna of application, described mobile terminal is provided with frame, it is characterized in that: described multiple-limb mobile terminal antenna bends when mounted, after bending, described high-frequency branch and the first parasitic branch are positioned at the headroom end on projection district on terminal mainboard, described low frequency branch extends along the inwall of terminal frame, and described second parasitic branch extends along the inwall of terminal frame.
The headroom end face of such scheme Appropriate application terminal and narrow limit end face, namely meeting radiation at the large position of headroom, also need be applicable to the appearance design of terminal neatly.Antenna avoids " G " font structure, more reasonably make use of the area of terminal headroom end face, has adapted to mobile terminal fully more and more thinner and make the disabled trend of end face.
Further, described trixenie branch is positioned at the headroom end on projection district on terminal mainboard.
The multiple resonance points design of such scheme, makes mobile terminal possess good bandwidth broadning performance, can adapt to the multiband application demand of terminal.
Accompanying drawing explanation
Fig. 1 is antenna radiator structure schematic diagram one.
Fig. 2 is antenna radiator structure schematic diagram two.
Fig. 3 is execution mode one structural representation.
Fig. 4 is the antenna standing wave ratio curve chart of execution mode one.
Fig. 5 is execution mode two structural representation.
Fig. 6 is execution mode three structural representation.
Embodiment
Following by reference to the accompanying drawings 1 to 6, technical scheme of the present invention is described:
As shown in Figure 1, a kind of multiple-limb mobile terminal antenna, comprises the main antenna body being provided with a high-frequency branch 1 and a low frequency branch 2, and high-frequency branch 1 and low frequency branch 2 extend along equidirectional, forms gap 6-2 between the two; Described main antenna body also comprises the first earth terminal 8-1 that a feed end be connected with the signal source of terminal mainboard 9, is connected with the signal ground of terminal mainboard, forms gap 6-1 between described feed end 9 and the first earth terminal 8-1; And being provided with two-way or two-way with the passive antenna body of top set, described passive antenna body comprises a second earth terminal 8-2 be connected with the signal ground of terminal mainboard, and described passive antenna Ti Shangge road branch is formed with described higher frequency radiating branch 1 respectively and is coupled.
Also the first described earth terminal 8-1 can be omitted in the larger situation of antenna headroom.
In such scheme, high-frequency branch 1 correspondence of main radiator produces a high-frequency resonant point, passive antenna body be may correspond to by coupling and produces two or more high-frequency resonant points, greatly extends high frequency bandwidth, solves the general narrower problem of mobile terminal high band bandwidth.
Improvement as such scheme:
Further, described passive antenna body comprises one near the first parasitic branch 3 of the high-frequency branch 1 of described main antenna body, and the second parasitic branch 4 of high-frequency branch away from described main antenna body, described first parasitic branch 3 extends along described high-frequency branch 1 bearing of trend.
Described first parasitic 3 be endoparasitism high frequency radiation body, and it nestles up that described higher frequency radiating branch 1 extends also can according to practical adjustments Len req.Form close coupling between described first parasitic branch 3 and high-frequency branch 1, its stiffness of coupling is by the width adjusting of described 3rd gap 6-3.Described second parasitic branch 4 is ectoparasite high frequency radiation body, forms weak coupling between described second parasitic branch 4 and high-frequency branch 1.Because the first parasitic branch 3 and the second parasitic branch 4 are in position away from described lower frequency radiating branch 2, therefore the impact between high and low frequency range is further reduced.
Further, electric capacity or capacitive element can be connected with between described high-frequency branch 1 and the first parasitic branch 3.
Further, be formed with half and close gap 6-3 between described high-frequency branch 1 and the first parasitic branch 3, arranging above or below described gap to have coupling piece, and described coupling piece is generally sheet metal.
In such scheme, by setting up electric capacity, capacitive element or coupling piece, for strengthening the stiffness of coupling between higher frequency radiating branch and the first parasitic branch, to meet the demand of radiation.Meanwhile, also make the debugging of aerial signal more convenient, flexible.
As shown in Figure 2, described passive antenna body also comprises a trixenie branch 5, this trixenie branch raw 5 is formed in the connecting portion of the first parasitic branch 3 and the second parasitic branch 4, its near and along the bearing of trend extension of described first parasitic branch 3, and form semiclosed gap 6-4.
According to practical application and frequency range demand, by increasing passive antenna branch to increase corresponding high-frequency resonant point, expanding high-frequency bandwidth.And, also can reduce the impact of newly-increased high-frequency band on low-frequency range to greatest extent.
One as such scheme is deduced, and main antenna body can omit high-frequency branch, and described first parasitic branch is directly coupled with main antenna body low frequency branch, and entire physical is prolate shape.
Shown in Fig. 3, the specific embodiment of the present invention one:
Apply a mobile terminal for above-mentioned multiple-limb mobile terminal antenna, described mobile terminal comprises a narrow limit frame.Described multiple-limb mobile terminal antenna when mounted its flat part 7, first earth terminal 8-1, the second earth terminal 8-2 and feed end 9 bends, after bending, described higher frequency radiating branch 1 and the first parasitic branch 3 are positioned at the headroom end on projection district on terminal mainboard 10, described lower frequency radiating branch 2 extends along the inwall end face of narrow limit frame, and described second parasitic branch extends along the inwall end face of narrow limit frame.
The headroom end face of such scheme Appropriate application terminal and narrow limit end face, namely meeting radiation needs flowing, is also applicable to the appearance design of terminal neatly.Antenna avoids " G " font structure, more reasonably make use of the area of terminal headroom end face, has adapted to mobile terminal fully more and more thinner and make the disabled trend of end face.
As shown in Figure 4, the antenna standing wave ratio curve chart of embodiment one, the second resonance point B that the first resonance point A that high-frequency branch 1 produces, the first parasitic branch 3 produce, and the 3rd resonance point C that the second parasitic branch 4 produces.As can be seen from curve chart, high-frequency branch 1 and each parasitic branch corresponding resonance point respectively, make mobile terminal possess good bandwidth broadning performance, can adapt to the multiband application demand of terminal.
Shown in composition graphs 1, Fig. 5, the specific embodiment of the present invention two is described:
The parasitic branch 3 of described high-frequency branch 1, first is positioned at the headroom face projection on terminal mainboard 10, and described lower frequency radiating branch 2 is single cabling, and the end face along narrow limit frame extends; Described second parasitic branch 4 is single cabling, and the end face along narrow limit frame extends.In the 6-3 of gap, between described higher frequency radiating branch 1 and the first parasitic branch 3, be connected with electric capacity or capacitive element 11, in order to strengthen coupling.
Described higher frequency radiating branch 1 is main high frequency radiation body, corresponding generation the first resonance point.
Described first parasitic branch 3 is endoparasitism high frequency radiation body, its nestle up described first branch 1 extend and can according to reality debugging need length can, corresponding produce the second resonance point.
Described second parasitic branch 4 is ectoparasite high frequency radiation body, and corresponding generation the 3rd resonance point, forms weak coupling between described first parasitic branch 4 and higher frequency radiating branch 1.
Composition graphs 1, Fig. 6, describe the specific embodiment of the present invention three:
The parasitic branch 3 of described high-frequency branch 1, first is positioned at the headroom face projection on terminal mainboard 10, and described lower frequency radiating branch 2 is single cabling, and the end face along narrow limit frame extends; Described second parasitic branch 4 is single cabling, and the end face along narrow limit frame extends.Coupling piece 12 is provided with, in order to strengthen coupling above or below the 6-3 of gap.Described coupling piece is sheet metal.
Described higher frequency radiating branch 1 is main high frequency radiation body, corresponding generation the first resonance point.
Described first parasitic branch 3 is endoparasitism high frequency radiation body, its nestle up described first branch 1 extend and can according to reality debugging need length can, corresponding produce the second resonance point.
Described second parasitic branch 4 is ectoparasite high frequency radiation body, and corresponding generation the 3rd resonance point, forms weak coupling between described first parasitic branch 4 and higher frequency radiating branch 1.
The method of setting up electric capacity or capacitive element or coupling piece described in above-described embodiment two, three, can strengthen the stiffness of coupling between higher frequency radiating branch 1 and the first parasitic branch 3 further, meet radiation demand.
It should be noted that, the some execution modes of said structure for providing in conjunction with particular content, can not think that specific embodiment of the invention is confined to this.All identical, approximate with structure of the present invention etc., or under concept thereof of the present invention, make some technology deduction or replace, all should be considered as protection scope of the present invention.
Claims (9)
1. a multiple-limb mobile terminal antenna, comprises a main antenna body and a passive antenna body, it is characterized in that: described passive antenna body includes the parasitic branch of more than two-way or two-way.
2. a kind of multiple-limb mobile terminal antenna according to claim 1, is characterized in that: described passive antenna body comprises one near the first parasitic branch of described main antenna body, and away from the second parasitic branch of described main antenna body.
3. a kind of multiple-limb mobile terminal antenna according to claim 2, is characterized in that: described main antenna body is provided with a high-frequency branch, and described first parasitic branch near described high-frequency branch, and forms coupling with it.
4. a kind of multiple-limb mobile terminal antenna according to claim 3, is characterized in that: described first parasitic branch extends along described high-frequency branch bearing of trend.
5. a kind of multiple-limb mobile terminal antenna according to claim 3, is characterized in that: be connected with electric capacity or capacitive element between the high-frequency branch of described main antenna body and the first parasitic branch.
6. a kind of multiple-limb mobile terminal antenna according to claim 3, is characterized in that: be formed with half between the high-frequency branch of described main antenna body and the first parasitic branch and close gap, be provided with coupling piece above or below described gap.
7. a kind of multiple-limb mobile terminal antenna according to any one of claim 2 to 6, it is characterized in that: described passive antenna body also comprises a trixenie branch, this trixenie branch is created on the connecting portion of the first parasitic branch and the second parasitic branch, and described trixenie branch is near the first parasitic branch and extend along its bearing of trend.
8. apply the mobile terminal of the multiple-limb mobile terminal antenna described in any one of the claims 1 to 7 for one kind, described mobile terminal is provided with frame, it is characterized in that: described multiple-limb mobile terminal antenna bends when mounted, after bending, described high-frequency branch and the first parasitic branch are positioned at the headroom end on projection district on terminal mainboard, described low frequency branch extends along the inwall of terminal frame, and described second parasitic branch extends along the inwall of terminal frame.
9. mobile terminal according to claim 8, is characterized in that: described trixenie branch is positioned at the headroom end on projection district on terminal mainboard.
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| CN201310467717.2A CN104577300B (en) | 2013-10-09 | 2013-10-09 | A kind of multiple-limb mobile terminal antenna and its mobile terminal |
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| CN201310467717.2A CN104577300B (en) | 2013-10-09 | 2013-10-09 | A kind of multiple-limb mobile terminal antenna and its mobile terminal |
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| CN104577300B CN104577300B (en) | 2017-06-23 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977612A (en) * | 2015-12-15 | 2016-09-28 | 乐视移动智能信息技术（北京）有限公司 | Ultra-wideband parasitic antenna and mobile terminal |
| CN106785414A (en) * | 2017-03-20 | 2017-05-31 | 合肥联宝信息技术有限公司 | Coupled antenna |
| CN107681257A (en) * | 2017-11-10 | 2018-02-09 | 哈尔滨工程大学 | One kind miniaturization multiple-resonant antenna |
| CN107834166A (en) * | 2017-10-10 | 2018-03-23 | 广东盛路通信科技股份有限公司 | A kind of double frequency omnibearing high ferro antenna |
| CN108736148A (en) * | 2017-04-17 | 2018-11-02 | 华为技术有限公司 | Antenna assembly and electronic equipment |
| CN108987909A (en) * | 2018-10-19 | 2018-12-11 | 深圳市信维通信股份有限公司 | A kind of novel tablet computer antenna |
| CN109586036A (en) * | 2018-12-29 | 2019-04-05 | 维沃移动通信有限公司 | A kind of antenna structure and wireless communication terminal |
| CN109742514A (en) * | 2018-11-22 | 2019-05-10 | 惠州Tcl移动通信有限公司 | A kind of antenna and mobile terminal of band parasitism module |
| CN109980341A (en) * | 2019-03-05 | 2019-07-05 | 惠州Tcl移动通信有限公司 | Antenna and intelligent terminal |
| CN110048214A (en) * | 2019-03-05 | 2019-07-23 | 惠州Tcl移动通信有限公司 | A kind of antenna and wireless communication apparatus |
| CN110943289A (en) * | 2019-12-10 | 2020-03-31 | 惠州Tcl移动通信有限公司 | Antenna and mobile terminal |
| CN112768904A (en) * | 2019-11-05 | 2021-05-07 | RealMe重庆移动通信有限公司 | Antenna radiator, antenna assembly and electronic equipment |
| CN113270728A (en) * | 2021-04-26 | 2021-08-17 | 宁波大学 | Tunable decoupling network for multi-antenna system |
| WO2022062127A1 (en) * | 2020-09-24 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Antenna system and communication terminal |
| CN114696073A (en) * | 2020-12-29 | 2022-07-01 | 纬创资通股份有限公司 | Antenna system |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977612A (en) * | 2015-12-15 | 2016-09-28 | 乐视移动智能信息技术（北京）有限公司 | Ultra-wideband parasitic antenna and mobile terminal |
| WO2017101373A1 (en) * | 2015-12-15 | 2017-06-22 | 乐视控股（北京）有限公司 | Ultra-wideband parasitic antenna and mobile terminal |
| CN106785414A (en) * | 2017-03-20 | 2017-05-31 | 合肥联宝信息技术有限公司 | Coupled antenna |
| CN108736148A (en) * | 2017-04-17 | 2018-11-02 | 华为技术有限公司 | Antenna assembly and electronic equipment |
| CN108736148B (en) * | 2017-04-17 | 2020-01-31 | 华为技术有限公司 | Antenna device and electronic equipment |
| CN107834166A (en) * | 2017-10-10 | 2018-03-23 | 广东盛路通信科技股份有限公司 | A kind of double frequency omnibearing high ferro antenna |
| CN107681257A (en) * | 2017-11-10 | 2018-02-09 | 哈尔滨工程大学 | One kind miniaturization multiple-resonant antenna |
| CN108987909A (en) * | 2018-10-19 | 2018-12-11 | 深圳市信维通信股份有限公司 | A kind of novel tablet computer antenna |
| CN109742514A (en) * | 2018-11-22 | 2019-05-10 | 惠州Tcl移动通信有限公司 | A kind of antenna and mobile terminal of band parasitism module |
| CN109586036A (en) * | 2018-12-29 | 2019-04-05 | 维沃移动通信有限公司 | A kind of antenna structure and wireless communication terminal |
| CN109980341A (en) * | 2019-03-05 | 2019-07-05 | 惠州Tcl移动通信有限公司 | Antenna and intelligent terminal |
| CN110048214A (en) * | 2019-03-05 | 2019-07-23 | 惠州Tcl移动通信有限公司 | A kind of antenna and wireless communication apparatus |
| CN112768904A (en) * | 2019-11-05 | 2021-05-07 | RealMe重庆移动通信有限公司 | Antenna radiator, antenna assembly and electronic equipment |
| CN112768904B (en) * | 2019-11-05 | 2022-08-05 | RealMe重庆移动通信有限公司 | Antenna radiator, antenna assembly and electronic equipment |
| CN110943289A (en) * | 2019-12-10 | 2020-03-31 | 惠州Tcl移动通信有限公司 | Antenna and mobile terminal |
| WO2022062127A1 (en) * | 2020-09-24 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Antenna system and communication terminal |
| CN114696073A (en) * | 2020-12-29 | 2022-07-01 | 纬创资通股份有限公司 | Antenna system |
| CN113270728A (en) * | 2021-04-26 | 2021-08-17 | 宁波大学 | Tunable decoupling network for multi-antenna system |
| CN113270728B (en) * | 2021-04-26 | 2022-07-12 | 宁波大学 | Tunable decoupling network for multi-antenna system |
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