CN103022689A - Wide frequency antenna capable of serving as metal shell of mobile terminal - Google Patents
Wide frequency antenna capable of serving as metal shell of mobile terminal Download PDFInfo
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- CN103022689A CN103022689A CN2012105658297A CN201210565829A CN103022689A CN 103022689 A CN103022689 A CN 103022689A CN 2012105658297 A CN2012105658297 A CN 2012105658297A CN 201210565829 A CN201210565829 A CN 201210565829A CN 103022689 A CN103022689 A CN 103022689A
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- back cover
- antenna
- portable terminal
- metal back
- wide frequency
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- 239000002184 metal Substances 0.000 title claims abstract description 54
- 238000010586 diagram Methods 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
A wide frequency antenna capable of serving as a metal shell of a mobile terminal comprises a metal rear cover of the mobile terminal and an antenna body arranged on the metal rear cover. The antenna body comprises a feed point which is connected with one side of the metal rear cover, and the other side of the metal rear cover is grounded to form a circuit in order to enable the metal rear cover to serve as an irradiator of the antenna.
Description
Technical field
The present invention relates to the broad-band antenna in a kind of mobile communication system, be applied to the multifrequency antenna of intelligent mobile phone terminal system, particularly a kind of antenna radiator is as the wide frequency antenna of the part of metal shell.
Background technology
In the current era of smart mobile phone tremendous development, people have not satisfied the homogenous material of plastic casing, be not only because metal material more has feel, and its more wear-resisting, shock resistance.Therefore the shell of metal material becomes a kind of fashion trend.Wish simultaneously can both to have online at a high speed anywhere and experience, this just requires the radio system of portable terminal can compatible current popular LTE/3G/WIFI frequency range.This brings very large challenge for the intelligent machine Antenna Design.
Fig. 1 is the handset structure schematic diagram that existing employing metal back cover is made, and is that the common way of metal material is this metal back cover 1 grounding for back cover, and it is reduced its impact as the part of mainboard 2.Because metal-back covered antenna area 3, stop aerial radiation in order to prevent it, normally at metal rear shell cover fluting or beat some holes by aerial radiation out.After processing like this, metal back cover still can affect antenna radiation efficiency, causes its efficient not high, also can't take into account LTE/3G/WIFI.Can not well process simultaneously the impact that antenna accessory (such as motor, charging inlet, loudspeaker etc.) on every side brings.
Summary of the invention
The present invention is directed to the prior art above shortcomings, a kind of wide frequency antenna that can be used as the portable terminal metal shell is provided, metal back cover as antenna radiator, is incorporated into all multibands of LTE/3G/WIFI in the antenna by the relative position of adjusting feedback point, earth point.Eliminate the impact that antenna accessory (such as motor, charging inlet, loudspeaker etc.) on every side brings by relevant processing simultaneously.
The present invention is achieved through the following technical solutions:
A kind of wide frequency antenna that can be used as the portable terminal metal shell comprises:
The metal back cover of one portable terminal;
Antenna body is arranged on the described metal back cover, comprises a feedback point, and described feedback point is connected with a side of described metal back cover, and the opposite side ground connection of described metal back cover to form a loop, makes described metal back cover become the radiant body of antenna.
Better, described feedback point adopts microstrip line to connect a side of described metal back cover.
Better, the opposite side of described metal back cover adopts microstrip line to connect earth terminal on the PCB mainboard of described portable terminal.
Better, described portable terminal comprises a charging inlet, and the outside of described charging inlet is connected with described metal back cover, and the inboard of described USB interface adopts microstrip line to be connected to a side of described metal back cover along the inner surface of described metal back cover, make its ground connection, to eliminate the impact on antenna.
Better, described portable terminal also comprises the accessory around some antennas, is arranged on the described microstrip line, to eliminate the impact on antenna.
Description of drawings
Fig. 1 is existing metal back cover mobile phone terminal antenna structure view;
Fig. 2 is a kind of structural representation that can be used as the wide frequency antenna of portable terminal metal shell of the present invention;
Fig. 3 is a kind of return loss schematic diagram that can be used as the wide frequency antenna of portable terminal metal shell of the present invention;
Fig. 4 is a kind of efficient schematic diagram that can be used as the LTE antenna of portable terminal metal shell of the present invention.
Embodiment
Below in conjunction with embodiment the present invention is elaborated, present embodiment is implemented under take technical solution of the present invention as prerequisite, has provided detailed execution mode, but protection scope of the present invention is not limited to following embodiment.
Please refer to Fig. 2, the structural representation of a preferred embodiment provided by the invention.In the present embodiment, this wide frequency antenna that can be used as the portable terminal metal shell comprises: the metal back cover of a portable terminal and be arranged on antenna body on the described metal back cover, this antenna body comprises feedback point 4, this feedback point is placed on the centre position of antenna body, is connected to a side of metal back cover by one section microstrip line 5.The opposite side ground connection of metal back cover, particularly, the opposite side of metal back cover can feed back to by one section microstrip line 9 earth terminal 6 of the PCB mainboard of portable terminal, forms the loop.The metal back cover just can be used as the part of antenna like this, and can not affect antenna performance.Width and relative position by suitable adjustment microstrip line satisfy LTE/3G/ WIFI (700 ~ 960 MHz, the demand of 1710 ~ 2700MHz) multibands.The concrete different condition factor affecting such as looking metal material of adjusting, the present invention does not do restriction at this, and the technical staff only need can obtain a preferred version through test and the test of limited number of time.
Simultaneously charging inlet 7 outer ends are connected with bonnet, the inner is connected to a side of metal back cover by one section microstrip line 8 along metal back cover inner surface, allows its ground connection.The impact that can eliminate charging inlet after processing like this and owing to be under the antenna antenna is produced.Can also the accessory around the antennas such as motor 11, loudspeaker 10 all be incorporated on this section microstrip line simultaneously, so just can eliminate them to the impact of antenna.
Fig. 3 is the return loss schematic diagram of antenna of the present invention.This figure has provided the return loss situation of 7 Frequency points, is respectively a 1:704MHz ,-7.2557dB; Point 2:960MHz ,-5.3025 dB; Point 3:1.71GHz ,-4.3580dB; Point 4:1.92GHz ,-10.463dB; Point 5:2.17GHz ,-5.7819dB; Point 6:2.5GHz ,-5.5534dB; Point 7:2.7GHz ,-6.7380dB; Hence one can see that, and antenna provided by the present invention can satisfy LTE/3G/WIFI (700 ~ 960 MHz, 1710 ~ 2700MHz) bandwidth requirement.
Fig. 4 is the efficient schematic diagram of antenna of the present invention, as known in the figure, in each band limits, the efficient of antenna is-4.5dB ~-1.5 dB between, thereby can find out that antenna provided by the present invention can satisfy mobile terminal system fully to the efficient requirement of antenna.
More than disclosed only be the application's a specific embodiment, 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 (5)
1. a wide frequency antenna that can be used as the portable terminal metal shell is characterized in that, comprising:
The metal back cover of one portable terminal;
Antenna body is arranged on the described metal back cover, comprises a feedback point, and described feedback point is connected with a side of described metal back cover, and the opposite side ground connection of described metal back cover to form a loop, makes described metal back cover become the radiant body of antenna.
2. the wide frequency antenna that can be used as the portable terminal metal shell as claimed in claim 1 is characterized in that, described feedback point adopts microstrip line to connect a side of described metal back cover.
3. the wide frequency antenna that can be used as the portable terminal metal shell as claimed in claim 1 is characterized in that, the earth terminal on the PCB mainboard of the opposite side employing microstrip line connection portable terminal of described metal back cover.
4. the wide frequency antenna that can be used as the portable terminal metal shell as claimed in claim 1, it is characterized in that, described portable terminal comprises a charging inlet, the outside of described charging inlet is connected with described metal back cover, the inboard of described USB interface adopts microstrip line to be connected to a side of described metal back cover along the inner surface of described metal back cover, make its ground connection, to eliminate the impact on antenna.
5. the wide frequency antenna that can be used as the portable terminal metal shell as claimed in claim 4 is characterized in that, described portable terminal also comprises the accessory around some antennas, is arranged on the described microstrip line, to eliminate the impact on antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105658297A CN103022689A (en) | 2012-12-24 | 2012-12-24 | Wide frequency antenna capable of serving as metal shell of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105658297A CN103022689A (en) | 2012-12-24 | 2012-12-24 | Wide frequency antenna capable of serving as metal shell of mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103022689A true CN103022689A (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105658297A Pending CN103022689A (en) | 2012-12-24 | 2012-12-24 | Wide frequency antenna capable of serving as metal shell of mobile terminal |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327144A (en) * | 2013-05-22 | 2013-09-25 | 华为终端有限公司 | Mobile terminal |
| CN105340129A (en) * | 2013-11-28 | 2016-02-17 | 华为终端有限公司 | Mobile terminal with novel antenna structure |
| CN105576347A (en) * | 2016-03-16 | 2016-05-11 | 惠州Tcl移动通信有限公司 | Wireless communication equipment and antenna structure thereof |
| CN105811074A (en) * | 2016-01-27 | 2016-07-27 | 宇龙计算机通信科技(深圳)有限公司 | Antenna system and mobile terminal |
| WO2016115812A1 (en) * | 2015-01-20 | 2016-07-28 | 中兴通讯股份有限公司 | Antenna design method, antenna and terminal |
| CN106356632A (en) * | 2016-09-14 | 2017-01-25 | 宇龙计算机通信科技(深圳)有限公司 | Active antenna system and mobile terminal |
| CN104577334B (en) * | 2015-02-11 | 2017-07-21 | 小米科技有限责任公司 | Anneta module and mobile terminal |
| TWI612722B (en) * | 2016-09-07 | 2018-01-21 | 國立高雄應用科技大學 | Lte multiband monopole antenna used in electronic appliance having metal frame |
| CN108493617A (en) * | 2018-05-24 | 2018-09-04 | 努比亚技术有限公司 | A kind of antenna system and communication terminal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201282187Y (en) * | 2008-09-19 | 2009-07-29 | 耀登科技股份有限公司 | Loop antenna capable of using in metal casing or non-metal casing mobile phone |
| CN102244524A (en) * | 2010-05-10 | 2011-11-16 | 财团法人工业技术研究院 | Mobile communication device |
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2012
- 2012-12-24 CN CN2012105658297A patent/CN103022689A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201282187Y (en) * | 2008-09-19 | 2009-07-29 | 耀登科技股份有限公司 | Loop antenna capable of using in metal casing or non-metal casing mobile phone |
| CN102244524A (en) * | 2010-05-10 | 2011-11-16 | 财团法人工业技术研究院 | Mobile communication device |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014187309A1 (en) * | 2013-05-22 | 2014-11-27 | 华为终端有限公司 | Mobile terminal |
| CN103327144A (en) * | 2013-05-22 | 2013-09-25 | 华为终端有限公司 | Mobile terminal |
| US9899728B2 (en) | 2013-05-22 | 2018-02-20 | Huawei Device (Dongguan) Co., Ltd. | Mobile terminal |
| US9947992B2 (en) | 2013-11-28 | 2018-04-17 | Huawei Device (Dongguan) Co., Ltd. | Mobile terminal with new type of antenna structure |
| CN105340129A (en) * | 2013-11-28 | 2016-02-17 | 华为终端有限公司 | Mobile terminal with novel antenna structure |
| CN105340129B (en) * | 2013-11-28 | 2018-06-19 | 华为终端（东莞）有限公司 | Mobile terminal with new antenna structure |
| WO2016115812A1 (en) * | 2015-01-20 | 2016-07-28 | 中兴通讯股份有限公司 | Antenna design method, antenna and terminal |
| US10186755B2 (en) | 2015-02-11 | 2019-01-22 | Xiaomi Inc. | Antenna module and mobile terminal using the same |
| CN104577334B (en) * | 2015-02-11 | 2017-07-21 | 小米科技有限责任公司 | Anneta module and mobile terminal |
| CN105811074A (en) * | 2016-01-27 | 2016-07-27 | 宇龙计算机通信科技(深圳)有限公司 | Antenna system and mobile terminal |
| CN105576347A (en) * | 2016-03-16 | 2016-05-11 | 惠州Tcl移动通信有限公司 | Wireless communication equipment and antenna structure thereof |
| TWI612722B (en) * | 2016-09-07 | 2018-01-21 | 國立高雄應用科技大學 | Lte multiband monopole antenna used in electronic appliance having metal frame |
| CN106356632A (en) * | 2016-09-14 | 2017-01-25 | 宇龙计算机通信科技(深圳)有限公司 | Active antenna system and mobile terminal |
| CN108493617A (en) * | 2018-05-24 | 2018-09-04 | 努比亚技术有限公司 | A kind of antenna system and communication terminal |
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Application publication date: 20130403 |