CN102738570B - Multi-antenna terminal - Google Patents
Multi-antenna terminal Download PDFInfo
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- CN102738570B CN102738570B CN201210121299.7A CN201210121299A CN102738570B CN 102738570 B CN102738570 B CN 102738570B CN 201210121299 A CN201210121299 A CN 201210121299A CN 102738570 B CN102738570 B CN 102738570B
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- antenna
- mainboard
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- present
- isolator
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
Abstract
The invention discloses a kind of multi-antenna terminal.This multi-antenna terminal comprises: mainboard, the first antenna and the second antenna, and wherein, the first antenna is connected with mainboard respectively with the second antenna; First antenna is mutually vertical and non-intersect with the second antenna.Pass through the present invention, first antenna of multi-antenna terminal is mutually vertical with the second antenna and be disjointly connected on mainboard, make the first antenna orthogonal with the radiating near field of the second antenna, disturbing mutually between the antenna of effective minimizing multi-antenna terminal, ensure that multi-antenna terminal is under same band operation, the radiance of multiple antennas and communication quality.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of multi-antenna terminal.
Background technology
Along with Long Term Evolution (LongTermEvolution, referred to as LTE) development of 4G data service, multi-antenna technology can provide abundant communication service, but exist between multiple antennas and disturb mutually and electromagnetic crosstalk, make electromagnetic environment (ElectroMagneticCompatibility, referred to as EMC) be deteriorated, cause antenna efficiency to reduce, thus affect the communication quality of mobile terminal.Further, due to microminiaturization and the ultrathin of mobile terminal, mobile terminal is made to give the space of antenna fewer and feweri.How reasonably to utilize integrated multiple antenna in limited space, how to prevent from disturbing the reduction causing antenna efficiency with electromagnetic crosstalk mutually between multiple antennas operating state multiple antennas, to meet FCC (FederalCommunicationsCommission, referred to as FCC) electromagnetic wave absorption rate (SpecificAbsourptionRate, referred to as SAR) standard-required, become the difficult problem that multi-antenna terminal antenna arrangement needs solution badly.
Existing multi-antenna technology mainly needs can realize in operating space more greatly, for example double antenna is placed in mainboard two ends by some dual-mode terminal, the mutual coupling between suppressing antenna is carried out by the distance pulled open between antenna, but current intelligent mobile terminal headroom is complicated, and no matter be that the voice of high frequency or data antenna are positioned over top, be equally all faced with the problem of top (Head) SAR.In addition, the surface current come between suppressing antenna by adding lump components and parts in correlation technique flows to, or changes setting angle etc., and these measures not only increase the volume of antenna, need to carry out part control on radio frequency cabling, add the complexity of terminal; Meanwhile, the introducing of lump components and parts, adds Q value and the loss of terminal capabilities, causes the decline of operating efficiency, nor is beneficial to and controls cost.
In summary, in correlation technique, how reasonably to utilize integrated multiple antenna in limited space, and how to prevent from disturbing the problem causing antenna efficiency to reduce with electromagnetic crosstalk mutually between multiple antennas, not yet propose effective solution at present.
Summary of the invention
For how reasonably utilizing integrated multiple antenna in limited space in correlation technique, and how to prevent from disturbing the problem causing antenna efficiency to reduce with electromagnetic crosstalk mutually between multiple antennas, the invention provides a kind of multi-antenna terminal, at least one of to solve the problem.
According to the present invention, provide a kind of multi-antenna terminal, comprising: mainboard, the first antenna and the second antenna, wherein, the first antenna is connected with mainboard respectively with the second antenna; First antenna is mutually vertical and non-intersect with the second antenna.
Preferably, the first antenna and the second antenna are arranged on same one end of mainboard.
Preferably, the pin of the first antenna and the pin of the second antenna mutually vertical.
Preferably, above-mentioned multi-antenna terminal also comprises: element isolator, and wherein, element is arranged on mainboard isolator, the region between the view field of the first antenna on mainboard and the view field of the second antenna on mainboard.
Preferably, above-mentioned element is isolator made up of metal material.
Preferably, above-mentioned metal is copper.
Preferably, above-mentioned multi-antenna terminal also comprises: guide ground element into, wherein, guides ground element into and is arranged on mainboard, be positioned at the first antenna or the view field of the second antenna on mainboard.
Preferably, above-mentioned ground element of guiding into quarter-wavely guides structure into for having to be not more than.
Preferably, above-mentioned ground element of guiding into is made up of metal material.
Preferably, above-mentioned metal is copper.
Preferably, above-mentioned multi-antenna terminal also comprises: guide ground element into, wherein, guides ground element into and is arranged on mainboard, be positioned at the first antenna or the view field of the second antenna on mainboard.
Preferably, above-mentioned mainboard also comprises: be arranged at element isolator and guide the clearance channel between ground element into.
Pass through the present invention, first antenna of multi-antenna terminal is mutually vertical with the second antenna and be disjointly connected on mainboard, make the first antenna orthogonal with the radiating near field of the second antenna, disturbing mutually between the antenna of effective minimizing multi-antenna terminal, ensure that the radiance of multi-antenna terminal multiple antennas under same band operation, thus ensure that the communication quality of multi-antenna terminal.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the multi-antenna terminal according to the embodiment of the present invention one;
Fig. 2 is the schematic diagram according to the preferred multi-antenna terminal of the embodiment of the present invention one;
Fig. 3 is the schematic diagram according to another preferred multi-antenna terminal of the embodiment of the present invention one;
Fig. 4 is the schematic diagram according to the another preferred multi-antenna terminal of the embodiment of the present invention one;
Fig. 5 is the schematic diagram one according to the multi-antenna terminal of the embodiment of the present invention three;
Fig. 6 is the schematic diagram two according to the multi-antenna terminal of the embodiment of the present invention three;
Fig. 7 is according to the first antenna return loss of the embodiment of the present invention three schematic diagram with frequency variation curve;
Fig. 8 is according to the second antenna return loss of the embodiment of the present invention three schematic diagram with frequency variation curve;
Fig. 9 is according to the first antenna of the embodiment of the present invention three and the isolation of the second antenna schematic diagram with frequency variation curve.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiment one
According to the embodiment of the present invention, provide a kind of multi-antenna terminal, first antenna of multi-antenna terminal is mutually vertical with the second antenna and be disjointly connected on mainboard, make the first antenna orthogonal with the radiating near field of the second antenna, disturbing mutually between the effective antenna reducing multi-antenna terminal.
Fig. 1 is the schematic diagram of the multi-antenna terminal according to the embodiment of the present invention one, and as shown in Figure 1, this multi-antenna terminal mainly comprises: mainboard 10, first antenna 20 and the second antenna 30, and wherein, the first antenna 20 is connected with mainboard 30 respectively with the second antenna 30; First antenna 20 is mutually vertical and non-intersect with the second antenna 30.
Pass through the embodiment of the present invention, first antenna 20 of multi-antenna terminal is mutually vertical with the second antenna 30 and be disjointly connected on mainboard 10, make the first antenna 20 orthogonal with the radiating near field of the second antenna 30, disturbing mutually between the antenna of effective minimizing multi-antenna terminal, ensure that the radiance of multi-antenna terminal multiple antennas under same band operation, thus ensure that the communication quality of multi-antenna terminal.
In specific implementation process, the first antenna 20 and the second antenna 30 can be connected on mainboard 10 by pin, and antenna is substantially parallel with mainboard 10 plane.In order to reduce disturbing mutually of the first antenna 20 and the second antenna 30 further, the pin of the first antenna 20 can be mutually vertical with the pin of the second antenna 30.Such as, can by the feed pin of the feed pin of the first antenna 20, shorting pin and the second antenna 30, shorting pin is vertical places, separated by a distance, make the surface field trend of the first antenna 20 and the second antenna 30 contrary, reduce the mutual coupling of the first antenna 20 and the second antenna 30.
The microminiaturization of mobile terminal and ultrathin, make mobile terminal give the space of antenna fewer and feweri.In order to the space reasonably utilizing mobile terminal limited, integrated multiple antenna in limited space, in a preferred implementation of the embodiment of the present invention, the first antenna 20 and the second antenna 30 can be arranged on same one end of mainboard 10.Further, because intelligent mobile terminal headroom is complicated, antenna is positioned over the top of multi-antenna terminal, and the problem of HeadSAR may be caused, therefore, the first antenna 20 and the second antenna 30 can be arranged on the bottom of intelligent multi-antenna terminal mainboard.
When first antenna 20 and the second antenna 30 are arranged on same one end of mainboard 10, in order to reduce the mutual coupling between antenna further, in a preferred implementation of the embodiment of the present invention, as shown in Figure 2, element 40 isolator can be set on mainboard, element 40 can, as independent component, be installed on mainboard 10 isolator, also can between be arranged on mainboard 10.This is the region of element 40 between the view field of the first antenna 20 on mainboard 10 and the second view field of antenna 30 on mainboard 10 isolator, can as the coupling channel of two antennas, the nearly electric field of the first antenna 20 and the second antenna 30 is formed at element area isolator inversely add, thus further reduce disturbing mutually between two antennas.
Further, element 40 can be made up of metal material isolator.Preferably, the metal making element isolator can for copper, thus form copper paving area between the view field of the first antenna 20 on mainboard 10 and the second view field of antenna 30 on mainboard 10, improves the isolation of the first antenna 20 and the second antenna 30.Preferably, the area of element 40 is 50 ~ 100mm2 isolator.
In a preferred implementation of the embodiment of the present invention, as shown in Figure 3, multi-antenna terminal can also comprise: guide ground element 50 into, wherein, guiding ground element 50 into is arranged on mainboard, is positioned at the first antenna 20 or the second view field of antenna 30 on mainboard 10, makes the first antenna 20 or the second antenna 30 realize secondary coupling in the region guiding ground element 50 into, improve towards the reciprocal gain of antenna, reduce the mutual coupling at upper half-space of the first antenna 20 and the second antenna 30.
Further, above-mentioned ground element 50 of guiding into quarter-wavely guides structure into for having to be not more than.In addition, above-mentioned ground element 50 of guiding into can be made up of metal material.Preferably, making the metal of guiding ground element 50 into can be copper.Such as, at the second antenna 30, the view field on mainboard forms copper paving area, quarter-wavely structure is guided into as having, the second antenna 30 is made to realize secondary coupling in this region, thus improve towards reciprocal gain, reduce the mutual coupling of the second antenna 30 half space and the first antenna 20 thereon.
In specific implementation process, element 40 and guide ground element 50 into isolator can be set on mainboard 10 simultaneously, thus further reduce disturbing mutually and electromagnetic crosstalk between two antennas.Further, in a preferred implementation of the embodiment of the present invention, as shown in Figure 4, above-mentioned mainboard 10 can also comprise the clearance channel 102 being arranged at element 40 isolator and guiding between ground element 50, and preferably, the width of above-mentioned clearance channel is 0.5 ~ 2mm.This clearance channel 102 can play flow-disturbing effect to the electric current on mainboard 10 surface, adds the current path between two antenna feeds, thus adds the isolation of two antennas.
Embodiment two
According to the embodiment of the present invention, provide a kind of multi-antenna terminal, adopt novel spatial reuse antenna technology, mutual coupling and electromagnetic crosstalk is suppressed by the design of antenna self and cabling rule, and add guide into and effect isolator, achieve multiple antennas to coexist with band operation, solve the electromagnetic interference of same frequency range LTE multi-antenna technology and disturb problem mutually, the radiance of antenna and communication quality when ensure that multiple antennas is under same band operation.
In embodiments of the present invention, as shown in Figure 1, first antenna 20 (being the antenna of voice-bearer in embodiments of the present invention) and the second antenna 30 (being the antenna of carrying data in embodiments of the present invention), two antennas and mainboard 10 (are radio frequency (RadioFrequency in embodiments of the present invention, referred to as RF) circuit board) be connected, realize voice and 4G data service respectively; The main body of the first antenna 20 and the second antenna 30 are positioned at same one end of mainboard 10.The feed pin of the feed pin of the first antenna 20, shorting pin and the second antenna 30, shorting pin is vertical places, and have certain distance, the feed part of two antenna cablings and layout portion are in plumbness, make the surface field of the first antenna and the second antenna for contrary trend, reduce the mutual coupling between antenna.
In a preferred implementation of the embodiment of the present invention, there is one piece between first antenna 20 and the second antenna 30 and (be equivalent to above-mentioned element isolator 40) isolator, as the coupling channel of two antennas, inversely add in region formation isolator.
In another preferred implementation of the embodiment of the present invention, there is the copper paving area (be equivalent to above-mentioned guide into ground element 50) of being drawn by floor in the view field of the second antenna, it act as to have quarter-wavely guides structure into, the second antenna 30 is made to realize secondary coupling at this place, thus improve towards reciprocal gain, reduce its mutual coupling at upper half-space and the first antenna 20.
Embodiment three
In embodiments of the present invention, as shown in Figure 5 and Figure 6, the first antenna 1 and the second antenna 2 are connected on printed circuit board (PrintedCircuitBroard, referred to as PCB) floor 5 by radio frequency leads 7 and 9, realize data and phonetic function respectively.
First antenna 1 can adopt decoration technique inside mold (In-MoldDecoration, referred to as IML) etc. the technique bottom or be heat fused on support by attachment that is mounted on back cover fix with PCB floor 5, realize CDMA800 & PCS1900 & AWS2100 band communication, the first antenna 1 can be unipole antenna (monopole), the flat plane antenna of falling F (IFA), loop antenna (loop antenna); Second antenna 2 can adopt the techniques such as IML be mounted on the bottom of back cover or be heat fused on support fixing with PCB floor 5 by attachment, realizes PCS1900 & AWS2100 band communication.
As shown in Figure 5 and Figure 6, the first antenna 1 mainly comprises main body radiation area 6, feed pin 7.Second antenna 2 mainly comprises main body radiation arm 8, feed pin 9 and short circuit arm 6.Simultaneously PCB floor 5 comprises 4 (being equivalent to above-mentioned element isolator 40) isolator, and guides structure 3 (be equivalent to above-mentioned guide ground element 50 into) into.
In the present embodiment, the feed pin 7 of the first antenna 1 is vertical with the feed pin 9 of the second antenna 2 puts, the main body radiant section 6 of the first antenna 1 is mutually vertical with main body radiant section 8 cabling of the second antenna 2 simultaneously, make the radiating near field of two antennas orthogonal, disturbing mutually of effective minimizing two antennas.
By PCB floor 5 is stretched out isolator 4, the area of 4 is at 50 ~ 100mm isolator
2, during the radiation simultaneously of the first antenna 1 and the second antenna 2, due to isolator 4 reflex, make two antennas define obvious eddy current efficiency near 4 isolator, radiating near field oppositely superposes at this, improves isolation between the two; What PCB floor 5 was stretched out guides the view field that ground 3 is positioned at the second antenna 2 into, guides structure into by quarter-wave, and effective minimizing two antennas are at the mutual coupling of upper half-space.
In a preferred implementation of the embodiment of the present invention, guide ground 3 into and there is clearance channel 10 between 4 isolator, width is at 0.5 ~ 2mm, clearance channel 10 plays flow-disturbing effect for the surface current on PCB floor 5, add the current path between two antenna feeds, thus add the isolation of two antennas.
Adopt the multi-antenna terminal that the present embodiment provides, under normal temperature environment, be the experiment proved that by Agilent E5515C, experimental result is as shown in Fig. 7,8 and 9, under guarantee service behaviour, the standing wave curve of the first antenna 1 and the second antenna 2 working frequency range be less than ~ 7dB and both reach more than-14dB at the isolation of same frequency range PCS1900 & AWS2100, two antenna passive efficiencies meet the efficiency of more than 45%, achieve multiple antennas work and coexist.
In embodiments of the present invention, by antenna form and cabling design and the putting of feed, add isolator simultaneously, guide into and clearance channel, decrease disturbing mutually between two antennas, ensure that the electrical property of antenna.
As can be seen from the above description, present invention achieves following technique effect :) by the first antenna and the second antenna being arranged on the same side of mainboard, improve the reusability in space; 2) by cabling layout and the feed of the first antenna and the second antenna, the modes of emplacement control surface direction of an electric field of short dot; 3) by between two antennas isolator, make the near-field region of two antennas realize oppositely superposition in region isolator, improve the isolation of two antennas; 4) by have quarter-wave guide structure into guide ground into, effective reduce the mutual coupling of two antennas at upper half-space.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a multi-antenna terminal, is characterized in that, comprising: mainboard, the first antenna and the second antenna, wherein,
Described first antenna is connected with described mainboard respectively with described second antenna;
Described first antenna is mutually vertical and non-intersect with described second antenna;
Element isolator, wherein, described element is isolator arranged on described mainboard, the region between the view field of described first antenna on described mainboard and the view field of described second antenna on described mainboard;
Guide into ground element, wherein, described in guide into ground element be arranged on described mainboard, be positioned at described first antenna or the described view field of the second antenna on described mainboard.
2. multi-antenna terminal according to claim 1, is characterized in that, described first antenna and described second antenna are arranged on same one end of described mainboard.
3. multi-antenna terminal according to claim 1 and 2, is characterized in that, the pin of described first antenna is mutually vertical with the pin of described second antenna.
4. multi-antenna terminal according to claim 1, is characterized in that, described element is isolator made up of metal material.
5. multi-antenna terminal according to claim 4, is characterized in that, described metal is copper.
6. multi-antenna terminal according to claim 1, is characterized in that, described in guide ground element into and quarter-wavely guide structure into for having to be not more than.
7. multi-antenna terminal according to claim 6, is characterized in that, described in guide into ground element be made up of metal material.
8. multi-antenna terminal according to claim 7, is characterized in that, described metal is copper.
9. multi-antenna terminal according to claim 1, is characterized in that, described mainboard also comprises: described in being arranged at isolator element and described guide into ground element between clearance channel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121299.7A CN102738570B (en) | 2012-04-23 | 2012-04-23 | Multi-antenna terminal |
| PCT/CN2012/076721 WO2013159430A1 (en) | 2012-04-23 | 2012-06-11 | Multi-antenna terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121299.7A CN102738570B (en) | 2012-04-23 | 2012-04-23 | Multi-antenna terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102738570A CN102738570A (en) | 2012-10-17 |
| CN102738570B true CN102738570B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210121299.7A Active CN102738570B (en) | 2012-04-23 | 2012-04-23 | Multi-antenna terminal |
Country Status (2)
| Country | Link |
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| CN (1) | CN102738570B (en) |
| WO (1) | WO2013159430A1 (en) |
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| CN103887607B (en) * | 2012-12-20 | 2016-12-28 | 联想(北京)有限公司 | Attachment means and method of attachment for antenna |
| CN203339302U (en) * | 2013-01-28 | 2013-12-11 | 中兴通讯股份有限公司 | Antenna system |
| CN104300232A (en) * | 2013-07-16 | 2015-01-21 | 深圳富泰宏精密工业有限公司 | Wireless communication device |
| US10312583B2 (en) | 2013-09-17 | 2019-06-04 | Laird Technologies, Inc. | Antenna systems with low passive intermodulation (PIM) |
| WO2015041768A1 (en) * | 2013-09-17 | 2015-03-26 | Laird Technologies, Inc. | Antenna systems with low passive intermodulation (pim) |
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| CN105789818A (en) * | 2014-12-17 | 2016-07-20 | 联想(北京)有限公司 | Antenna and electronic equipment |
| CN104566027B (en) * | 2014-12-26 | 2018-10-26 | 生迪光电科技股份有限公司 | LED light device, system and its antenna arrangement method |
| KR20160120650A (en) * | 2015-04-08 | 2016-10-18 | 삼성전기주식회사 | Antenna apparatus |
| CN105872415A (en) * | 2015-12-14 | 2016-08-17 | 乐视致新电子科技（天津）有限公司 | Split type television and host unit thereof |
| CN109698399B (en) * | 2017-10-20 | 2021-04-20 | 深圳天珑无线科技有限公司 | Electronic equipment and antenna assembly thereof |
| CN108987896A (en) * | 2018-07-27 | 2018-12-11 | 深圳市信维通信股份有限公司 | A kind of mimo antenna high-isolation terminal phone |
| CN110911804B (en) * | 2018-09-17 | 2023-03-24 | 中兴通讯股份有限公司 | Antenna adjusting method and device and computer storage medium |
| CN110931973A (en) * | 2018-09-20 | 2020-03-27 | 中兴通讯股份有限公司 | Terminal device |
| CN111613898B (en) * | 2019-02-22 | 2022-01-28 | 华为技术有限公司 | Terminal antenna structure and terminal |
| CN112751195A (en) * | 2019-10-31 | 2021-05-04 | 珠海市魅族科技有限公司 | Terminal antenna system and mobile terminal |
| CN113517557B (en) * | 2020-04-10 | 2023-04-28 | 华为技术有限公司 | Electronic equipment |
| CN113224508A (en) * | 2021-04-08 | 2021-08-06 | 荣耀终端有限公司 | Antenna device, electronic apparatus, and electronic apparatus module |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2013159430A1 (en) | 2013-10-31 |
| CN102738570A (en) | 2012-10-17 |
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