CN102738570A - Multi-antenna terminal - Google Patents
Multi-antenna terminal Download PDFInfo
- Publication number
- CN102738570A CN102738570A CN2012101212997A CN201210121299A CN102738570A CN 102738570 A CN102738570 A CN 102738570A CN 2012101212997 A CN2012101212997 A CN 2012101212997A CN 201210121299 A CN201210121299 A CN 201210121299A CN 102738570 A CN102738570 A CN 102738570A
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- antenna
- mainboard
- terminal
- isolator
- antennas
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- 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
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- 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 multi-antenna terminal. The multi-antenna terminal comprises a main board, a first antenna and a second antenna, wherein the first antenna and the second antenna are respectively connected with the main board; and the first antenna and the second antenna are mutually vertical to each other without intersecting. According to the multi-antenna terminal, the first antenna and the second antenna are connected on the main board in a way that the first antenna and the second antenna are mutually vertical to each other without intersecting; and therefore, the radiation near fields of the first antenna and the second antenna can meet an orthogonal state, and the interference among antennas of the multi-antenna terminal can be effectively reduced, and the radiation performance and the communication quality of a plurality of antennas of the multi-antenna terminal can be ensured under the work within a same frequency band.
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 (Long Term Evolution; Abbreviate LTE as) development of 4G data service, multi-antenna technology can provide abundant communication service, disturbs mutually and electromagnetic crosstalk yet exist between many antennas; Make electromagnetic environment (Electro Magnetic Compatibility; Abbreviate EMC as) variation, cause that antenna efficiency reduces, thereby influence the communications of Mobile Terminals quality.And because the microminiaturization and ultra-thinization of portable terminal, it is fewer and feweri to make that portable terminal gives the space of antenna.Integrated a plurality of antennas in the limited space of reasonable use how; How to prevent between the many antennas of many antennas operating state, to disturb the reduction that causes antenna efficiency with electromagnetic crosstalk mutually; To satisfy (the Federal Communications Commission of FCC; Abbreviate FCC as) standard-required of electro-magnetic wave absorption ratio (Specific Absourption Rate abbreviates SAR as), become the difficult problem that the multi-antenna terminal antenna arrangement is needed solution badly.
But existing multi-antenna technology mainly is in big operating space, to realize; For example some dual-mode terminal places the mainboard two ends with double antenna; Distance through drawing back between antenna is come the mutual coupling influence between the suppressing antenna; But present intelligent mobile terminal headroom is complicated, and no matter is that voice or data antenna with high frequency is positioned over the top, equally all is faced with the problem of top (Head) SAR.In addition, come the surface current between the suppressing antenna to flow to through adding the lump components and parts in the correlation technique, perhaps change setting angle etc., these measures have not only increased antenna volume, need on the radio frequency cabling, carry out part control, have increased the complexity at terminal; Simultaneously, the introducing of lump components and parts has increased the Q value and the loss of terminal capabilities, causes the decline of operating efficiency, controls cost nor be beneficial to.
To sum up can know, integrated a plurality of antennas in the limited space of reasonable use how in the correlation technique, and how to prevent that disturbing mutually with electromagnetic crosstalk between many antennas from causing the problem that antenna efficiency reduces, and do not propose effective solution at present as yet.
Summary of the invention
To integrated a plurality of antennas in the limited space of reasonable use how in the correlation technique; And how to prevent that disturbing mutually with electromagnetic crosstalk between many antennas from causing the problem that antenna efficiency reduces; The invention provides a kind of multi-antenna terminal, one of to address the above problem at least.
According to the present invention, a kind of multi-antenna terminal is provided, comprising: mainboard, first antenna and second antenna, wherein, first antenna is connected with mainboard respectively with second antenna; First antenna is vertical and non-intersect each other with second antenna.
Preferably, first antenna and second antenna are arranged on the same end of mainboard.
Preferably, the pin of first antenna is vertical each other with the pin of second antenna.
Preferably, above-mentioned multi-antenna terminal also comprises: element isolator, wherein, element is arranged on the mainboard isolator, at first antenna in view field on the mainboard and the zone of second antenna between the view field on the mainboard.
Preferably, above-mentioned element is isolator processed by metal material.
Preferably, above-mentioned metal is a copper.
Preferably, above-mentioned multi-antenna terminal also comprises: guide the ground element into, wherein, guide the ground element into and be arranged on the mainboard, be positioned at first antenna or the view field of second antenna on mainboard.
Preferably, the above-mentioned ground element of guiding into is not more than the quarter-wave structure of guiding into for having.
Preferably, the above-mentioned ground element of guiding into is processed by metal material.
Preferably, above-mentioned metal is a copper.
Preferably, above-mentioned multi-antenna terminal also comprises: guide the ground element into, wherein, guide the ground element into and be arranged on the mainboard, be positioned at first antenna or the view field of second antenna on mainboard.
Preferably, above-mentioned mainboard also comprises: be arranged at element isolator and guide the clearance channel between the ground element into.
Through the present invention; First antenna and mutual vertical and disjoint being connected on the mainboard of second antenna with multi-antenna terminal; Make the radiation near field quadrature of the win antenna and second antenna; Effectively reduce disturbing mutually between the antenna of multi-antenna terminal, guaranteed the radiance of multi-antenna terminal many antennas under, thereby guaranteed the communication quality of multi-antenna terminal with frequency range work.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the sketch map according to the multi-antenna terminal of the embodiment of the invention one;
Fig. 2 is the sketch map according to the embodiment of the invention one preferred multi-antenna terminal;
Fig. 3 is the sketch map according to the embodiment of the invention one another preferred multi-antenna terminal;
Fig. 4 is the sketch map according to the embodiment of the invention one another preferred multi-antenna terminal;
Fig. 5 is the sketch map one according to the multi-antenna terminal of the embodiment of the invention three;
Fig. 6 is the sketch map two according to the multi-antenna terminal of the embodiment of the invention three;
Fig. 7 is according to first antenna return loss of the embodiment of the invention three sketch map with frequency variation curve;
Fig. 8 is according to second antenna return loss of the embodiment of the invention three sketch map with frequency variation curve;
Fig. 9 is according to the isolation of first antenna of the embodiment of the invention three and second antenna sketch map with frequency variation curve.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Embodiment one
According to the embodiment of the invention; A kind of multi-antenna terminal is provided; With first antenna of multi-antenna terminal and second antenna vertical and disjoint being connected on the mainboard each other, make the radiation near field quadrature of the win antenna and second antenna, effectively reduce disturbing mutually between the antenna of multi-antenna terminal.
Fig. 1 is the sketch map according to the multi-antenna terminal of the embodiment of the invention one, and is as shown in Figure 1, and this multi-antenna terminal mainly comprises: mainboard 10, first antenna 20 and second antenna 30, and wherein, first antenna 20 is connected with mainboard 30 respectively with second antenna 30; First antenna 20 is vertical and non-intersect each other with second antenna 30.
Pass through the embodiment of the invention; First antenna 20 and second antenna, 30 mutual vertical and disjoint being connected on the mainboard 10 with multi-antenna terminal; Make the radiation near field quadrature of the win antenna 20 and second antenna 30; Effectively reduce disturbing mutually between the antenna of multi-antenna terminal, guaranteed the radiance of multi-antenna terminal many antennas under, thereby guaranteed the communication quality of multi-antenna terminal with frequency range work.
In the practical implementation process, first antenna 20 and second antenna 30 can be connected on the mainboard 10 through pin, and antenna is substantially parallel with mainboard 10 planes.In order further to reduce disturbing mutually of first antenna 20 and second antenna 30, the pin of the pin of first antenna 20 and second antenna 30 can be vertical each other.For example; Can be with the feed pin of feed pin, short circuit pin and second antenna 30 of first antenna 20, the short circuit pin is vertical places; Separated by a distance, make the surface field trend of the win antenna 20 and second antenna 30 opposite, reduce the mutual coupling of first antenna 20 and second antenna 30.
The microminiaturization and ultra-thinization of portable terminal, it is fewer and feweri to make that portable terminal gives the space of antenna.For the limited space of reasonable use portable terminal, integrated a plurality of antennas in limited space, in a preferred implementation of the embodiment of the invention, first antenna 20 and second antenna 30 can be arranged on the same end of mainboard 10.Further; Because the intelligent mobile terminal headroom is complicated, antenna is positioned over the top of multi-antenna terminal, and may causes the problem of Head SAR; Therefore, can first antenna 20 and second antenna 30 be arranged on the bottom of intelligent multi-antenna terminal mainboard.
When first antenna 20 and second antenna 30 are arranged on the same end of mainboard 10; In order further to reduce the mutual coupling between the antenna, in a preferred implementation of the embodiment of the invention, as shown in Figure 2; Element 40 isolator can be set on mainboard; Element 40 can be used as independent component isolator, be installed on the mainboard 10, also can between be arranged on the mainboard 10.This isolator element 40 at first antenna 20 in the view field on the mainboard 10 and second zone of antenna 30 between the view field on the mainboard 10; Can be used as the coupling channel of two antennas; The nearly electric field of the win antenna 20 and second antenna 30 is inversely added in element area formation isolator, thereby further reduce disturbing mutually between two antennas.
Further, element 40 can be processed by metal material isolator.Preferably, make isolator that the metal of element can be copper, thereby between the view field on the mainboard 10, form copper paving area in the view field on the mainboard 10 and second antenna 30, improve the isolation of first antenna 20 and second antenna 30 at first antenna 20.Preferably, the area of element 40 is 50～100mm2 isolator.
In a preferred implementation of the embodiment of the invention, as shown in Figure 3, multi-antenna terminal can also comprise: guide ground element 50 into; Wherein, Guide ground element 50 into and be arranged on the mainboard, be positioned at first antenna 20 or second view field of antenna 30 on mainboard 10, make win antenna 20 or second antenna 30 realize the secondary coupling in the zone of guiding ground element 50 into; Raising reduces the mutual coupling at upper half-space of first antenna 20 and second antenna 30 towards the reciprocal gain of antenna.
Further, the above-mentioned ground element 50 of guiding into is not more than the quarter-wave structure of guiding into for having.In addition, the above-mentioned ground element 50 of guiding into can be processed by metal material.Preferably, make the metal of guiding ground element 50 into and can be copper.For example; View field on mainboard forms copper paving area at second antenna 30; As having the quarter-wave structure of guiding into; Make second antenna 30 realize secondary coupling in this zone, thereby improve, reduce the mutual coupling of half space and first antenna 20 above that of second antenna 30 towards reciprocal gain.
In the practical implementation process, element 40 can be set on mainboard 10 isolator simultaneously and guide ground element 50 into, thereby further reduce disturbing mutually and electromagnetic crosstalk between two antennas.Further, as shown in Figure 4 in a preferred implementation of the embodiment of the invention, above-mentioned mainboard 10 can also comprise and be arranged at element 40 isolator and guide the clearance channel 102 between the ground element 50 into that preferably, the width of above-mentioned clearance channel is 0.5～2mm.This clearance channel 102 can play the flow-disturbing effect to the electric current on mainboard 10 surfaces, has increased the current path between two antenna feeds, thereby has increased the isolation of two antennas.
Embodiment two
According to the embodiment of the invention; A kind of multi-antenna terminal is provided, has adopted novel spatial reuse antenna technology, design and cabling rule through antenna self suppress mutual coupling and electromagnetic crosstalk; And add guide into isolator effect; Realized many antennas with frequency range work coexistence, solved with the electromagnetic interference of frequency range LTE multi-antenna technology and disturb problem mutually, guaranteed that many antennas are at radiance and communication quality with frequency range work antenna of following time.
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 second antenna 30 (in embodiments of the present invention for carrying the antenna of data); Two antennas and mainboard 10 (being radio frequency (Radio Frequency abbreviates RF as) circuit board in embodiments of the present invention) link to each other, and realize voice and 4G data service respectively; The main body of first antenna 20 and second antenna 30 are positioned at the same end of mainboard 10.The feed pin of the feed pin of first antenna 20, short circuit pin and second antenna 30, the short circuit pin is vertical places; And certain distance is arranged; The feed of two antenna cablings and layout partly are in plumbness; The surface field that makes the win antenna and second antenna reduces the mutual coupling between the antenna for opposite trend.
In a preferred implementation of the embodiment of the invention, there is one between first antenna 20 and second antenna 30 and (is 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 invention; There is the copper paving area (being equivalent to the above-mentioned ground element 50 of guiding into) of being drawn by the floor in the view field of second antenna; It act as has the quarter-wave structure of guiding into; Make second antenna 30 realize the secondary coupling at this place, thereby improve, reduce its mutual coupling at the upper half-space and first antenna 20 towards reciprocal gain.
Embodiment three
In embodiments of the present invention, like Fig. 5 and shown in Figure 6, first antenna 1 and second antenna 2 are connected on printed circuit board (Printed Circuit Broard the abbreviates PCB as) floor 5 through radio frequency leads 7 and 9, realize data and phonetic function respectively.
Like Fig. 5 and shown in Figure 6, 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.PCB floor 5 comprises 4 (being equivalent to above-mentioned element isolator 40) isolator simultaneously, and guides structure 3 (being equivalent to the above-mentioned ground element 50 of guiding into) into.
In the present embodiment; The feed pin 7 of first antenna 1 and the feed pin of second antenna 29 vertical putting; Main body radiant section 8 cablings of the main body radiant section 6 of first antenna 1 and second antenna 2 are vertical each other simultaneously; Make and the radiation near field quadrature of two antennas effectively reduce disturbing mutually of two antennas.
Through stretch out on the PCB floor 5 isolator 4,4 area is at 50～100mm isolator
2, when first antenna 1 and the radiation simultaneously of second antenna 2, because 4 reflex isolator, make two antennas form apparent in view eddy current efficient near 4 isolator, isolation has between the two been improved in this reverse stack in the radiation near field; Stretch out on PCB floor 5 guides the view field that ground 3 is positioned at second antenna 2 into, through the quarter-wave structure of guiding into, effectively reduces the mutual coupling influence of two antennas at upper half-space.
In a preferred implementation of the embodiment of the invention; Guide ground 3 into and have clearance channel 10 isolator between 4; Width is at 0.5～2mm; Clearance channel 10 plays the flow-disturbing effect for the surface current on PCB floor 5, has increased the current path between two antenna feeds, thereby has increased the isolation of two antennas.
The multi-antenna terminal that adopts present embodiment to provide; Under normal temperature environment, through Agilent E5515C through experiment showed, that experimental result is like Fig. 7, shown in 8 and 9; Guaranteeing under the service behaviour; The standing wave curve of first antenna 1 and second antenna 2 working frequency range less than～7dB and both reached at isolation with frequency range PCS1900&AWS2100-more than the 14dB, two antenna passive efficiencies satisfy the efficient 45% or more, have realized that the work of many antennas coexists.
In embodiments of the present invention,, increased simultaneously isolator through putting of design of antenna form and cabling and feed, guide into and clearance channel, reduced disturbing mutually between two antennas, guaranteed the electrical property of antenna.
From above description, can find out that the present invention has realized following technique effect :) through first antenna and second antenna being arranged on the same side of mainboard, improved the reusability in space; 2) cabling layout and the feed through first antenna and second antenna, the modes of emplacement control surface direction of an electric field of short dot; 3) through between two antennas isolator, make the near-field region of two antennas realize reverse stack in zone isolator, improve the isolation of two antennas; 4), effectively reduce of the mutual coupling influence of two antennas at upper half-space through having the quarter-wave ground of guiding into of guiding structure into.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a multi-antenna terminal is characterized in that, comprising: mainboard, first antenna and second antenna, wherein,
Said first antenna is connected with said mainboard respectively with said second antenna;
Said first antenna is vertical and non-intersect each other with said second antenna.
2. multi-antenna terminal according to claim 1 is characterized in that, said first antenna and said second antenna are arranged on the same end of said mainboard.
3. multi-antenna terminal according to claim 1 and 2 is characterized in that, the pin of said first antenna is vertical each other with the pin of said second antenna.
4. multi-antenna terminal according to claim 1 and 2; It is characterized in that; Also comprise: element isolator; Wherein, said element isolator is arranged on the said mainboard, at said first antenna in view field on the said mainboard and the zone of said second antenna between the view field on the said mainboard.
5. multi-antenna terminal according to claim 4 is characterized in that, said element is isolator processed by metal material.
6. multi-antenna terminal according to claim 5 is characterized in that, said metal is a copper.
7. multi-antenna terminal according to claim 1 and 2 is characterized in that, also comprises: guide the ground element into, wherein, the said ground element of guiding into is arranged on the said mainboard, is positioned at said first antenna or the view field of said second antenna on said mainboard.
8. multi-antenna terminal according to claim 7 is characterized in that, the said ground element of guiding into is not more than the quarter-wave structure of guiding into for having.
9. multi-antenna terminal according to claim 8 is characterized in that, the said ground element of guiding into is processed by metal material.
10. multi-antenna terminal according to claim 9 is characterized in that, said metal is a copper.
11. multi-antenna terminal according to claim 4 is characterized in that, also comprises: guide the ground element into, wherein, the said ground element of guiding into is arranged on the said mainboard, is positioned at said first antenna or the view field of said second antenna on said mainboard.
12. multi-antenna terminal according to claim 11 is characterized in that, said mainboard also comprises: be arranged at said element isolator and said clearance channel of guiding between the ground element.
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 |
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| Publication Number | Publication Date |
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| CN102738570A true CN102738570A (en) | 2012-10-17 |
| CN102738570B 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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| CN103887607A (en) * | 2012-12-20 | 2014-06-25 | 联想(北京)有限公司 | Connection device and connection method for antenna |
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| CN105789818A (en) * | 2014-12-17 | 2016-07-20 | 联想(北京)有限公司 | Antenna and electronic equipment |
| CN104566027A (en) * | 2014-12-26 | 2015-04-29 | 生迪光电科技股份有限公司 | LED (Light Emitting Diode) illuminating device, system and antenna arranging method thereof |
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| CN109698399A (en) * | 2017-10-20 | 2019-04-30 | 深圳天珑无线科技有限公司 | Electronic equipment and its antenna module |
| 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 |
| CN110931973A (en) * | 2018-09-20 | 2020-03-27 | 中兴通讯股份有限公司 | Terminal device |
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| Publication number | Publication date |
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| CN102738570B (en) | 2016-01-20 |
| WO2013159430A1 (en) | 2013-10-31 |
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