CN103022648A - Low-profile mobile terminal antenna - Google Patents
Low-profile mobile terminal antenna Download PDFInfo
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- CN103022648A CN103022648A CN2012105728923A CN201210572892A CN103022648A CN 103022648 A CN103022648 A CN 103022648A CN 2012105728923 A CN2012105728923 A CN 2012105728923A CN 201210572892 A CN201210572892 A CN 201210572892A CN 103022648 A CN103022648 A CN 103022648A
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Abstract
The invention relates to a built-in antenna of a mobile terminal, in particular to a low-profile mobile terminal antenna. The low-profile mobile terminal antenna comprises a PCB (printed circuit board) and an antenna body arranged above the PCB, wherein the antenna body comprises a first antenna body and a second antenna body, the first antenna body comprises a feed branch, a first long branch, a second short branch, a third long branch and a first ground branch, the feed branch and the first ground branch are respectively connected with the PCB, the second antenna body comprises a second ground branch and a fourth branch, and the second ground branch is connected with the fourth branch and the PCB. Compared with the prior art, the low-profile mobile terminal antenna is wide in resonance bandwidth, in particular high-frequency bandwidth, and is obvious high in radiant efficiency.
Description
Technical field
The present invention relates to a kind of built-in aerial of portable terminal, particularly a kind of low section mobile terminal antenna.
Background technology
Antenna is a kind of device that utilizes frequency characteristic to receive and transmit.In recent years, be used for design and the performance of the mobile terminal antenna of radio communication, more and more affect the developing direction of mobile communication.The leading indicator of Antenna Design comprises: suitable multifrequency resonance is arranged; Antenna realize that signal is propagated and energy emission all based on the resonance of certain frequency.If antenna can both resonance in a plurality of frequencies, antenna can be in a plurality of frequency work so.On the other hand, the design of portable terminal is more and more highly integrated, and the space that causes antenna to take is more and more less.For antenna, an important size is the height of antenna, because portable terminal, for example mobile phone has the designer trends that trend towards " thin ", so that the height that antenna can utilize is restricted; Another important size is antenna " headroom ", so-called headroom refers to remove on the pcb board metal ground part, and the antenna entity will be positioned over top, headroom district as much as possible, so just can reach preferably radiance, namely our preferably global radiation efficient of usually saying.But because the original paper integrated level of system is very high, also can not reserve very large headroom district to antenna.The space that antenna can take is more and more less, also will keep the performance of antenna, and this is difficulty and the challenge place of following Antenna Design.And the resonant bandwidth of existing antenna is generally narrower, and global radiation efficient is lower.
Summary of the invention
The object of the invention is to provide a kind of low section mobile terminal antenna, and is generally narrower with the resonant bandwidth that solves antenna of the prior art, and the lower technical matters of global radiation efficient.
The object of the invention is achieved through the following technical solutions:
A kind of low section mobile terminal antenna, comprise pcb board and the antenna body that is arranged at its top, described antenna body comprises the first antenna body and the second antenna body, described the first antenna body comprises feed branch, the first long branch, the second short branch, the 3rd long branch and the first ground connection branch that connects successively, described feed branch be connected the first ground connection branch and be connected with described pcb board respectively, described the second antenna body comprises the second ground connection branch and the 4th branch, described the second ground connection branch respectively with described the 4th branch be connected pcb board and be connected.
Preferably, the described the 4th branches into " U " type branch, and an end of described " U " type branch is connected with described the second ground connection branch, and the other end is near described feed branch.
Preferably, the vertical range of the peak of described antenna body and described pcb board is 2mm-3mm.
Preferably, described the first antenna body also comprises quintafurcation and the 6th branch, and described quintafurcation is connected with described feed branch, and described the 6th branch is connected with the described the 3rd long branch.
Preferably, the described the 6th branch into " L " type branch.
Preferably, described antenna body also comprises the third antenna body, and described third antenna body comprises the 7th branch, the 8th branch and the 9th branch that connects successively, and described the 7th branch is connected with described pcb board.
Preferably, the subregion of described pcb board one end is cut, stays the rectangular area, and the long limit of described rectangular area is 15mm-20mm, and broadside is 5mm-10mm, and described antenna body is arranged on the top of this end pcb board.
Preferably, described antenna body and three-dimension curved surface antenna holder are conformal.
Compared with prior art, the present invention has following beneficial effect:
1, the resonant bandwidth of low section mobile terminal antenna of the present invention is wider, and especially high frequency bandwidth is wider, and global radiation efficient is significantly improved;
2, the height of low section mobile terminal antenna of the present invention is less, can satisfy the designing requirement that portable terminal " thin " is changed;
3, low section mobile terminal antenna of the present invention is simple in structure, easily realizes.
Description of drawings
Fig. 1 is the structural representation of the first embodiment of low section mobile terminal antenna of the present invention;
Fig. 2 is the structural representation of the second embodiment of low section mobile terminal antenna of the present invention;
Fig. 3 is the structural representation of the third embodiment of low section mobile terminal antenna of the present invention;
Fig. 4 is the structural representation of the pcb board of low section mobile terminal antenna of the present invention;
Fig. 5 is the return loss plot of existing antenna;
Fig. 6 is the return loss plot of the first embodiment of low section mobile terminal antenna of the present invention;
Fig. 7 is the comparison diagram of the global radiation efficient of low section mobile terminal antenna of the present invention and existing antenna.
Embodiment
Below in conjunction with accompanying drawing, describe the present invention in detail.
See also Fig. 1, be the first embodiment of low section mobile terminal antenna of the present invention, comprise pcb board 101 and the antenna body that is arranged at its top, antenna body comprises the first antenna body and the second antenna body.The first antenna body comprises feed branch 207, the first long branch 203, the second short branch 204, the 3rd long branch 205 and the first ground connection branch 206 that connects successively, feed branch 207, the first long branch 203, the second short branch 204, the 3rd long branch 205 and the first ground connection branch 206 form a coil antenna body, feed branch 207 be connected ground connection branch 206 and be connected with pcb board 101 respectively.The second antenna body comprises that the second ground connection branch 201 and 202, the second ground connection branches 201 of the 4th branch are connected with pcb board with the 4th branch 202 respectively and is connected, forms radiation arm.
In this example, the 4th branch 202 is " U " type branch, and an end of " U " type branch is connected with the second ground connection branch 201, and the other end is near feed branch 207.
In the present invention, the peak of antenna body and the vertical range of pcb board are 2mm-3mm, and the height of antenna is less, can satisfy the designing requirement that portable terminal " thin " is changed.
See also Fig. 2, be the second embodiment of the present invention.In this embodiment, the first antenna body comprises that also quintafurcation 208 and the 6th branch 209, the quintafurcations 208 are connected with feed branch 207, and the 6th branch 209 is connected with the 3rd long branch 205.In this example, the 6th branch 209 is " L " type branch.This embodiment can regulate the impedance of high-frequency resonant.
See also Fig. 3, be the third embodiment of the present invention.In this embodiment, antenna body also comprises the third antenna body, and the third antenna body comprises that the 7th branch 508, the 8th branch 509 and 510, the seven branches 508 of the 9th branch that connect successively are connected with pcb board, form radiation arm.This embodiment can regulate the impedance of low-frequency resonant.
See also Fig. 4, the subregion of pcb board one end of the present invention is cut, stays rectangular area 4, and the long limit 401 of rectangular area 4 is 15mm-20mm, broadside 402 is 5mm-10mm, and the first above-mentioned antenna body, the second antenna body and third antenna body are arranged on the top of this end pcb board.
In the present invention, antenna body can be conformal with the three-dimension curved surface antenna holder.
See also Fig. 5, Fig. 6, wherein, the return loss plot of the existing antenna of Fig. 5, Fig. 6 is the return loss plot of the first embodiment of low section mobile terminal antenna of the present invention.With Fig. 5 and Fig. 6 contrast, can find out that the resonant bandwidth of low section mobile terminal antenna of the present invention is wider than existing antenna, especially high frequency bandwidth is significantly increased.Accordingly, see also Fig. 7, the global radiation efficient of low section mobile terminal antenna of the present invention has obvious lifting than existing antenna.And low section mobile terminal antenna of the present invention is simple in structure, easily realizes.
Above disclosed only be several specific embodiments of the application, but the application is not limited thereto, the changes that any person skilled in the art can think of all should drop in the application's the protection range.
Claims (8)
1. one kind low section mobile terminal antenna, comprise pcb board and the antenna body that is arranged at its top, it is characterized in that, described antenna body comprises the first antenna body and the second antenna body, described the first antenna body comprises the feed branch that connects successively, the first long branch, the second short branch, the 3rd long branch and the first ground connection branch, described feed branch be connected the first ground connection branch and be connected with described pcb board respectively, described the second antenna body comprises the second ground connection branch and the 4th branch, described the second ground connection branch respectively with described the 4th branch be connected pcb board and be connected.
2. low section mobile terminal antenna as claimed in claim 1 is characterized in that, the described the 4th branches into " U " type branch, and an end of described " U " type branch is connected with described the second ground connection branch, and the other end is near described feed branch.
3. low section mobile terminal antenna as claimed in claim 1 is characterized in that, the peak of described antenna body and the vertical range of described pcb board are 2mm-3mm.
4. low section mobile terminal antenna as claimed in claim 1 is characterized in that, described the first antenna body also comprises quintafurcation and the 6th branch, and described quintafurcation is connected with described feed branch, and described the 6th branch is connected with the described the 3rd long branch.
5. low section mobile terminal antenna as claimed in claim 4 is characterized in that, the described the 6th branches into " L " type branch.
6. low section mobile terminal antenna as claimed in claim 1, it is characterized in that, described antenna body also comprises the third antenna body, and described third antenna body comprises the 7th branch, the 8th branch and the 9th branch that connects successively, and described the 7th branch is connected with described pcb board.
7. low section mobile terminal antenna as claimed in claim 1 is characterized in that, the subregion of described pcb board one end is cut, stay the rectangular area, the long limit of described rectangular area is 15mm-20mm, and broadside is 5mm-10mm, and described antenna body is arranged on the top of this end pcb board.
8. such as the described low section mobile terminal antenna of any one among the claim 1-7, it is characterized in that, described antenna body and three-dimension curved surface antenna holder are conformal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572892.3A CN103022648B (en) | 2012-12-25 | 2012-12-25 | Low-profile mobile terminal antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572892.3A CN103022648B (en) | 2012-12-25 | 2012-12-25 | Low-profile mobile terminal antenna |
Publications (2)
| Publication Number | Publication Date |
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| CN103022648A true CN103022648A (en) | 2013-04-03 |
| CN103022648B CN103022648B (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210572892.3A Expired - Fee Related CN103022648B (en) | 2012-12-25 | 2012-12-25 | Low-profile mobile terminal antenna |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346397A (en) * | 2013-06-21 | 2013-10-09 | 上海安费诺永亿通讯电子有限公司 | Multi-frequency antenna system applicable to mobile terminal with metal frame structure |
| CN103441328A (en) * | 2013-09-02 | 2013-12-11 | 信维创科通信技术（北京）有限公司 | Small clearance antenna and portable device comprising same |
| CN103531888A (en) * | 2013-10-09 | 2014-01-22 | 信维创科通信技术（北京）有限公司 | Multi-frequency noncentral feed type annular antenna for handheld equipment and handheld equipment |
| CN104218329A (en) * | 2014-09-05 | 2014-12-17 | 昆山联滔电子有限公司 | Combined antenna |
| CN104412450A (en) * | 2014-04-28 | 2015-03-11 | 华为终端有限公司 | Antenna and mobile terminal |
| CN107093788A (en) * | 2017-03-17 | 2017-08-25 | 江苏省东方世纪网络信息有限公司 | Low profile antenna |
| WO2021218800A1 (en) * | 2020-04-27 | 2021-11-04 | 华为技术有限公司 | Electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200986965Y (en) * | 2006-09-15 | 2007-12-05 | 广达电脑股份有限公司 | Built-in multi-frequency antenna of mobile communication device and mobile communication device |
| CN101640307A (en) * | 2008-07-30 | 2010-02-03 | 深圳富泰宏精密工业有限公司 | Multi-frequency antenna and wireless communication device with same |
| CN202474197U (en) * | 2012-03-09 | 2012-10-03 | 上海安费诺永亿通讯电子有限公司 | Multi-frequency antenna |
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2012
- 2012-12-25 CN CN201210572892.3A patent/CN103022648B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200986965Y (en) * | 2006-09-15 | 2007-12-05 | 广达电脑股份有限公司 | Built-in multi-frequency antenna of mobile communication device and mobile communication device |
| CN101640307A (en) * | 2008-07-30 | 2010-02-03 | 深圳富泰宏精密工业有限公司 | Multi-frequency antenna and wireless communication device with same |
| CN202474197U (en) * | 2012-03-09 | 2012-10-03 | 上海安费诺永亿通讯电子有限公司 | Multi-frequency antenna |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346397A (en) * | 2013-06-21 | 2013-10-09 | 上海安费诺永亿通讯电子有限公司 | Multi-frequency antenna system applicable to mobile terminal with metal frame structure |
| CN103346397B (en) * | 2013-06-21 | 2016-01-13 | 上海安费诺永亿通讯电子有限公司 | Be applicable to the frequency antenna system with metal frame architecture mobile terminal |
| CN103441328A (en) * | 2013-09-02 | 2013-12-11 | 信维创科通信技术（北京）有限公司 | Small clearance antenna and portable device comprising same |
| CN103441328B (en) * | 2013-09-02 | 2016-02-24 | 信维创科通信技术（北京）有限公司 | Little clearance antenna and the portable set with it |
| CN103531888A (en) * | 2013-10-09 | 2014-01-22 | 信维创科通信技术（北京）有限公司 | Multi-frequency noncentral feed type annular antenna for handheld equipment and handheld equipment |
| CN104412450A (en) * | 2014-04-28 | 2015-03-11 | 华为终端有限公司 | Antenna and mobile terminal |
| CN104218329A (en) * | 2014-09-05 | 2014-12-17 | 昆山联滔电子有限公司 | Combined antenna |
| CN107093788A (en) * | 2017-03-17 | 2017-08-25 | 江苏省东方世纪网络信息有限公司 | Low profile antenna |
| CN107093788B (en) * | 2017-03-17 | 2020-07-14 | 江苏省东方世纪网络信息有限公司 | Low profile antenna |
| WO2021218800A1 (en) * | 2020-04-27 | 2021-11-04 | 华为技术有限公司 | Electronic device |
| CN113644445A (en) * | 2020-04-27 | 2021-11-12 | 华为技术有限公司 | Electronic device |
| CN113644445B (en) * | 2020-04-27 | 2022-10-11 | 华为技术有限公司 | Electronic device |
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|---|---|
| CN103022648B (en) | 2015-01-14 |
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