CN104577300B - A kind of multiple-limb mobile terminal antenna and its mobile terminal - Google Patents
A kind of multiple-limb mobile terminal antenna and its mobile terminal Download PDFInfo
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- CN104577300B CN104577300B CN201310467717.2A CN201310467717A CN104577300B CN 104577300 B CN104577300 B CN 104577300B CN 201310467717 A CN201310467717 A CN 201310467717A CN 104577300 B CN104577300 B CN 104577300B
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Abstract
The present invention proposes a kind of multiple-limb mobile terminal antenna, including a main antenna body and a passive antenna body, it is characterised in that：The passive antenna body includes more than two-way or two-way parasitic branch.Present invention introduces double branches or multiple-limb passive antenna body, multiple resonance points are formed by way of strong-and weak-coupling, multiple-limb, can effectively expand bandwidth.It is also proposed that using the mobile terminal of above-mentioned multiple-limb mobile terminal antenna, possessing good bandwidth broadning performance, multiband application demand is suitable for.
Description
Technical field
The present invention relates to a kind of multiple-limb mobile terminal antenna and its mobile terminal
Background technology
The miniaturization of mobile terminal, multifrequency propose stern challenge to Antenna Design.For example, common multiband day
The shortcoming that Xian You high and low frequencies branch conditions each other in antenna performance is general in design to surround high frequency using low frequency branch
Branch, forms the scheme of " G " font structure.But there is obvious shortcoming in above-mentioned " G " font structure：On the one hand govern low-frequency band
Width, on the other hand requires larger headroom area.With diminishing for mobile terminal thickness, the apical side height of antenna holder also becomes
More and more lower, the transmitting of antenna, reception can only utilize the end face of headroom.But due to the design that mobile terminal inside is compact, make
Obtain the available headroom end face of antenna smaller or elongated, cannot such as be reached most preferably using above-mentioned " G " font structure antenna
Low frequency bandwidth.
The content of the invention
The first object of the present invention is：For asking that the high and low frequency range branch of communication antenna conditions each other in performance
Topic, there is provided a kind of simple structure, the communication antenna of excellent electrical properties.
The technical scheme that it is used is as follows：
A kind of multiple-limb mobile terminal antenna, including a main antenna body and a passive antenna body, it is characterised in that：It is described to post
Raw antenna body includes more than two-way or two-way parasitic branch.
In such scheme, the high-frequency branch correspondence of main radiator produces a high-frequency resonant point, and passive antenna body is by coupling
Can correspond to and produce two or more high-frequency resonant points, greatly expand high frequency bandwidth, solve mobile terminal high band band
Universal narrower problem wide.
As the improvement of such scheme, present invention additionally comprises following technical scheme：
Further, the passive antenna body includes a first parasitic branch for being close to the main antenna body, and away from institute
State the second parasitic branch of main antenna body.Described first parasitic branch, second parasitic branch's correspondence produce the first resonance point, the
Two resonance points, independent resonant point causes that the influence between each frequency range is further reduced.
Further, the main antenna body is provided with a high-frequency branch, and the described first parasitic branch is close to the high-frequency branch, and
Coupling is formed therewith.
Further, the described first parasitic branch extends along the high-frequency branch bearing of trend.Such scheme can ensure day
Line is overall compared with prolate shape, rather than traditional " G " font antenna, can better profit from the headroom area in terminal.
Further, electric capacity or capacitive element are connected between the high-frequency branch of the main antenna body and the first parasitic branch.
Further, half closing gap, institute are formed between the high-frequency branch of the main antenna body and the first parasitic branch
State and coupling piece is provided with above or below gap.
In such scheme, by setting up electric capacity, capacitive element or coupling piece, posted with first for strengthening higher frequency radiating branch
Stiffness of coupling between branch estranged, to meet the demand of radiation.Meanwhile, also cause that the debugging of aerial signal is more convenient, flexible.
Further, the passive antenna body also includes a trixenie branch, and the trixenie branch is created on first and posts
Branch estranged and the connecting portion of the second parasitic branch, the trixenie branch are close to the first parasitic branch and extend along direction and prolongs
Stretch.
According to practical application and frequency range demand, corresponding high-frequency resonant point can be increased by increasing passive antenna branch,
Expanding high-frequency bandwidth.Furthermore, it is also possible to reduce the influence of newly-increased frequency range and other frequency ranges to greatest extent.
In sum, innovative point of the invention is：
1st, double branches or multiple-limb passive antenna body are introduced, forms multiple humorous by way of strong-and weak-coupling, different branches
Shake a little, can effectively expand bandwidth.Meanwhile, in addition to the high-frequency resonant point of main radiator, remaining high-frequency resonant point is by passive antenna body
Produce, further reduce the interference between height frequency band signals, be easier to take into account high band and low-frequency range than ordinary antennas, reduce
The environmental requirement of antenna.
2nd, the design of independent passive antenna body, increased the independence between each resonance point, have antenna stronger
Anti-interference, is convenient for the independent debugging of each frequency range.
3rd, while, the gap size between passive antenna body and antenna body is rationally set and coupling element is set up, energy
Effectively the degree of association of adjustment resonance point, bandwidth is combined so as to optimize and improve its.
The second object of the present invention is the mobile terminal for proposing the above-mentioned multiple-limb mobile terminal antenna of application, the movement
Terminal is provided with frame, it is characterised in that：The multiple-limb mobile terminal antenna is bent when mounted, the high frequency after bending
Branch is located in the headroom end on projection area on terminal mainboard with the first parasitic branch, and the low frequency branch is along terminal frame
Wall extends, and the described second parasitic branch extends along the inwall of terminal frame.
Such scheme rationally using terminal headroom end face and narrow side top surface, that is, meet radiation need at the big position of headroom,
Also neatly it is adapted to the appearance design of terminal.Antenna avoids " G " font structure, more reasonably make use of terminal headroom end face
Area, has fully adapted to mobile terminal more and more thinner and has made the disabled trend of top surface.
Further, the trixenie branch is located in the headroom end on projection area on terminal mainboard.
The multiple resonance points design of such scheme, makes mobile terminal possess good bandwidth broadning performance, is suitable for terminal
Multiband application demand.
Brief description of the drawings
Fig. 1 is antenna radiator structure schematic diagram one.
Fig. 2 is antenna radiator structure schematic diagram two.
Fig. 3 is the structural representation of implementation method one.
Fig. 4 is the antenna standing wave ratio curve map of implementation method one.
Fig. 5 is the structural representation of implementation method two.
Fig. 6 is the structural representation of implementation method three.
Specific embodiment
Below in conjunction with accompanying drawing 1 to 6, technical scheme is described：
As shown in figure 1, a kind of multiple-limb mobile terminal antenna, including the master for being provided with a high-frequency branch 1 and a low frequency branch 2
Antenna body, high-frequency branch 1 is extended in the same direction with low frequency branch 2, and gap 6-2 is formed between the two；The main antenna body is also
Including a feed end 9 being connected with the signal source of terminal mainboard, one with the first earth terminal 8- being signally connected of terminal mainboard
1, gap 6-1 is formed between the earth terminal 8-1 of the feed end 9 and first；And two-way or two-way are provided with the parasitism of top set
Antenna body, the passive antenna body includes the second earth terminal 8-2 being signally connected of one and terminal mainboard, the passive antenna
Ti Shangge roads branch forms with the higher frequency radiating branch 1 couple respectively.
The first described earth terminal 8-1 can also be omitted in the case of antenna headroom is larger.
In such scheme, the correspondence of high-frequency branch 1 of main radiator produces a high-frequency resonant point, passive antenna body to pass through coupling
Close to correspond to and produce two or more high-frequency resonant points, greatly expand high frequency bandwidth, solve mobile terminal high band
The universal narrower problem of bandwidth.
As the improvement of such scheme：
Further, the passive antenna body includes the first parasitic branch of a high-frequency branch 1 for being close to the main antenna body
3, and the high-frequency branch away from the main antenna body the second parasitic branch 4, the described first parasitic branch 3 is along the frequency division high
1 bearing of trend of branch extends.
The first parasitic branch 3 is endoparasitism high frequency radiation body, and it nestles up the higher frequency radiating branch 1 and extends and can root
According to length needed for practical adjustments,.Close coupling is formed between described first parasitic branch 3 and high-frequency branch 1, its stiffness of coupling can lead to
Cross the width adjusting of the 3rd gap 6-3.Described second parasitic branch 4 is ectoparasite high frequency radiation body, and described second is parasitic
Weak coupling is formed between branch 4 and high-frequency branch 1.By the first parasitic parasitic branch 4 of branch 3 and second is in position away from institute
The lower frequency radiating branch 2 stated, therefore the influence between high and low frequency range is further reduced.
Further, electric capacity or capacitive element can be connected between the parasitic branch 3 of the high-frequency branch 1 and first.
Further, half closing gap 6-3, the gap are formed between the parasitic branch 3 of the high-frequency branch 1 and first
Above or below set can have coupling piece, the coupling piece is generally sheet metal.
In such scheme, by setting up electric capacity, capacitive element or coupling piece, posted with first for strengthening higher frequency radiating branch
Stiffness of coupling between branch estranged, to meet the demand of radiation.Meanwhile, also cause that the debugging of aerial signal is more convenient, flexible.
As shown in Fig. 2 the passive antenna body also includes a trixenie branch 5, the trixenie branch gives birth to 5 one-tenth in the
The connecting portion of one parasitic parasitic branch 4 of branch 3 and second, it is close to and extends along the described first parasitic branch 3 bearing of trend, and
Form semiclosed gap 6-4.
According to practical application and frequency range demand, corresponding high-frequency resonant point can be increased by increasing passive antenna branch,
Expanding high-frequency bandwidth.Furthermore, it is also possible to reduce newly-increased influence of the high-frequency band to low-frequency range to greatest extent.
Deduced as one kind of such scheme, high-frequency branch can be omitted in main antenna body, the described first parasitic branch is direct
Coupled with main antenna body low frequency branch, antenna is in integrally prolate shape.
Shown in Fig. 3, specific embodiment of the invention：
A kind of mobile terminal of the above-mentioned multiple-limb mobile terminal antenna of application, the mobile terminal includes a narrow side frame.
The multiple-limb mobile terminal antenna its flat part 7, the first earth terminal 8-1, the second earth terminal 8-2 and feed end when mounted
9 are bent, and the headroom end face that the parasitic branch 3 of the higher frequency radiating branch 1 and first is located on terminal mainboard 10 after bending is thrown
In shadow zone, the lower frequency radiating branch 2 extends along the inwall top surface of narrow side frame, and the described second parasitic branch is along narrow side frame
Inwall top surface extends.
Rationally using the headroom end face and narrow side top surface of terminal, that is, meet radiation needs flowing to such scheme, also neatly fits
Close the appearance design of terminal.Antenna avoids " G " font structure, more reasonably make use of the area of terminal headroom end face, fully
Adapted to mobile terminal more and more thinner and made the disabled trend of top surface.
As shown in figure 4, the antenna standing wave ratio curve map of embodiment one, the first resonance point A, first that high-frequency branch 1 is produced
The second resonance point B that parasitic branch 3 produces, and the 3rd resonance point C that the second parasitic branch 4 produces.Can be with from curve map
Find out that high-frequency branch 1 and each parasitic branch a corresponding resonance point respectively make mobile terminal possess good bandwidth broadning
Can, it is suitable for the multiband application demand of terminal.
With reference to shown in Fig. 1, Fig. 5, specific embodiment two of the invention is described：
The parasitic branch 3 of the high-frequency branch 1, first is located in the headroom face projection on terminal mainboard 10, the low frequency spoke
Branch 2 is penetrated for single cabling, the top surface along narrow side frame extends；Described second parasitic branch 4 is single cabling, along narrow side frame
Top surface extend.In the 6-3 of gap, electric capacity or capacitive unit are connected between the parasitic branch 3 of the higher frequency radiating branch 1 and first
Part 11, is used to strengthen coupling.
The higher frequency radiating branch 1 is main high frequency radiation body, and correspondence produces the first resonance point.
The first parasitic branch 3 is endoparasitism high frequency radiation body, and it nestles up first branch 1 and extends and can basis
Actual debugging need length can, correspondence produces the second resonance point.
Described second parasitic branch 4 is ectoparasite high frequency radiation body, and correspondence produces the 3rd resonance point, described first parasitic point
Weak coupling is formed between branch 4 and higher frequency radiating branch 1.
With reference to Fig. 1, Fig. 6, specific embodiment three of the invention is described：
The parasitic branch 3 of the high-frequency branch 1, first is located in the headroom face projection on terminal mainboard 10, the low frequency spoke
Branch 2 is penetrated for single cabling, the top surface along narrow side frame extends；Described second parasitic branch 4 is single cabling, along narrow side frame
Top surface extend.Coupling piece 12 is provided with above or below the 6-3 of gap, is used to strengthen coupling.The coupling piece is sheet metal.
The higher frequency radiating branch 1 is main high frequency radiation body, and correspondence produces the first resonance point.
The first parasitic branch 3 is endoparasitism high frequency radiation body, and it nestles up first branch 1 and extends and can basis
Actual debugging need length can, correspondence produces the second resonance point.
Described second parasitic branch 4 is ectoparasite high frequency radiation body, and correspondence produces the 3rd resonance point, described first parasitic point
Weak coupling is formed between branch 4 and higher frequency radiating branch 1.
The method for setting up electric capacity or capacitive element or coupling piece described in above-described embodiment two, three, can further strengthen
Stiffness of coupling between the parasitic branch 3 of higher frequency radiating branch 1 and first, meets radiation demand.
It should be noted that said structure is some implementation methods provided with reference to particular content, this can not be thought
The specific implementation of invention is confined to this.It is all identical, approximate with structure of the present invention etc., or made under the premise of present inventive concept
Some technology deduction or replace, should all be considered as protection scope of the present invention.
Claims (1)
1. a kind of multiple-limb mobile terminal antenna, including it is provided with the main antenna body of a high-frequency branch and a low frequency branch, frequency division high
Branch is extended in the same direction with low frequency branch, and gap is formed between the two；
Characterized in that, the main antenna body also includes a feed end being connected with the signal source of terminal mainboard, one and terminal master
First earth terminal being signally connected of plate, forms gap between the feed end and the first earth terminal, and be provided with two-way or
With the passive antenna body of top set, the passive antenna body includes be signally connected second ground connection of one and terminal mainboard to two-way
End, the passive antenna Ti Shangge roads branch is formed with high-frequency branch couple respectively, and the high-frequency branch correspondence of main antenna body is produced
One high-frequency resonant point, passive antenna body can be corresponded to by coupling and produce two or more high-frequency resonant points；
The passive antenna body include one near the high-frequency branch of main antenna body the first parasitic branch, and away from the main day
The parasitic branch of the second of the high-frequency branch of wire body, the described first parasitic branch extends along the high-frequency branch bearing of trend；
Described first parasitic branch is endoparasitism high frequency radiation body, and it nestles up high-frequency branch extension；The first parasitic branch with
Close coupling is formed between high-frequency branch, its stiffness of coupling can be by the width adjusting in the 3rd gap, and the second parasitism branches into outer posting
Raw high frequency radiation body, weak coupling is formed between the second parasitic branch and high-frequency branch,
Electric capacity or capacitive element are connected between the high-frequency branch and the first parasitic branch；
Half closing gap is formed between the high-frequency branch and the first parasitic branch, above or below the semiclosed gap
It is provided with coupling piece；
The passive antenna body also includes trixenie branch, and the trixenie branch is created on the first parasitic branch and is posted with second
The connecting portion of branch estranged, is close to and extends along the first parasitic branch bearing of trend, and form semiclosed gap；
The mobile terminal is provided with frame, and the multiple-limb mobile terminal antenna is bent when mounted, the height after bending
Frequency division is propped up and is located in the headroom end on projection area on terminal mainboard with the first parasitic branch, and the low frequency branch is along terminal frame
Inwall extends, and the described second parasitic branch extends along the inwall of terminal frame, and the trixenie branch is located on terminal mainboard
Headroom end on projection area in.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Priority Date | Filing Date | Title |
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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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| Publication Number | Publication Date |
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| CN104577300A CN104577300A (en) | 2015-04-29 |
| CN104577300B true CN104577300B (en) | 2017-06-23 |
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| 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 |
| 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 |
| CN107681257B (en) * | 2017-11-10 | 2021-04-06 | 哈尔滨工程大学 | Miniaturized three-resonance 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 |
| CN109586036B (en) * | 2018-12-29 | 2021-04-06 | 维沃移动通信有限公司 | Antenna structure and wireless communication 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 |
| CN109980341B (en) * | 2019-03-05 | 2020-12-25 | 惠州Tcl移动通信有限公司 | Antenna and intelligent terminal |
| 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 |
| CN110943289B (en) * | 2019-12-10 | 2022-05-06 | 惠州Tcl移动通信有限公司 | Antenna and mobile terminal |
| CN213425181U (en) * | 2020-09-24 | 2021-06-11 | 瑞声精密制造科技(常州)有限公司 | Antenna system and communication terminal |
| TWI762121B (en) * | 2020-12-29 | 2022-04-21 | 緯創資通股份有限公司 | 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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| CN201937004U (en) * | 2010-08-27 | 2011-08-17 | 比亚迪股份有限公司 | Double G type multiband antenna |
| CN102569995A (en) * | 2010-12-30 | 2012-07-11 | 深圳富泰宏精密工业有限公司 | Multi-frequency antenna |
| CN103219581A (en) * | 2012-01-19 | 2013-07-24 | 启碁科技股份有限公司 | Wide frequency antenna |
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| CN201937004U (en) * | 2010-08-27 | 2011-08-17 | 比亚迪股份有限公司 | Double G type multiband antenna |
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| CN104577300A (en) | 2015-04-29 |
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