CN202695724U - Antenna earth plate and wireless equipment - Google Patents

Antenna earth plate and wireless equipment Download PDF

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Publication number
CN202695724U
CN202695724U CN 201220298957 CN201220298957U CN202695724U CN 202695724 U CN202695724 U CN 202695724U CN 201220298957 CN201220298957 CN 201220298957 CN 201220298957 U CN201220298957 U CN 201220298957U CN 202695724 U CN202695724 U CN 202695724U
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CN
China
Prior art keywords
antenna
connection
floor
isolation
antennas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220298957
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Chinese (zh)
Inventor
马金萍
刘洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
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ZTE Corp
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Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN 201220298957 priority Critical patent/CN202695724U/en
Priority to PCT/CN2012/081552 priority patent/WO2014000342A1/en
Application granted granted Critical
Publication of CN202695724U publication Critical patent/CN202695724U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; 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
    • H01Q1/243Supports; 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/48Earthing means; Earth screens; Counterpoises
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas

Abstract

The utility model provides an antenna earth plate and wireless equipment. The antenna earth plate is characterized in that one or more isolation grooves are arranged in the antenna earth plate and are used for changing an earth reflowing path of a plurality of antennas connected with the antenna earth plate. According to the antenna earth plate and the wireless equipment, the isolation degree among the antennas is improved, so that the problem of mutual inference between the near-distance antennas is solved.

Description

Connection of antenna floor and wireless device
Technical field
The utility model relates to the communications field, in particular to a kind of connection of antenna floor and wireless device.
Background technology
The appearance of Long Term Evolution (Long-Term Evolution is referred to as LTE) has promoted the development of WiMAX access technology and industry, and along with the demand of business is more and more extensive, the function that the LTE product provides also from strength to strength.For mobile phone and wireless access product etc., require it can when speech business is provided, carry out the transmission of data service.Yet, because speech business is to carry out in different functional modules with data transmission service, the antenna that is used for the antenna of speech business and is used for data transmission service works in same frequency range, therefore, just inevitably brought the problem of disturbing mutually between two or more antennas of realizing the voice-and-data business.
In order to solve this technical barrier, in correlation technique, traditional antenna arrangement is that the distance that the antenna of realizing these two functions is put is enough far away, so that the isolation between the antenna is enough large, such antenna arrangement is to reach certain effect of disturbing mutually avoided.But product is more and more higher to appearance requirement at present, and the miniaturization of product has become following inevitable trend, in the product miniaturization, just define the distance between the antenna, antenna can not be placed on very desirable distance, therefore, the isolation of antenna also can not meet the demands.
For above-mentioned problem one of at least in the correlation technique, effective solution is proposed not yet at present.
The utility model content
The utility model provides a kind of connection of antenna floor and wireless device, to solve at least in the correlation technique the closely low problem of the isolation between the antenna.
According to an aspect of the present utility model, a kind of connection of antenna floor is provided, it comprises: be provided with one or more isolation channels on the connection of antenna floor, be used for the ground return flow path of many antennas of change connection of antenna floor connection.
Preferably, isolation channel is arranged on the ground plate between two adjacent in many antennas antennas.
Preferably, the distributing point of every antenna is positioned at middle part or the end of this every antenna in many antennas.
Preferably, every antenna in many antennas is provided with one or more ground connection feedback points.
Preferably, one or more ground connection feedback points of every antenna are positioned at middle part or the end of this every antenna.
The degree of the ground return flow path that preferably, changes according to many antenna needs arranges length and the width of isolation channel.
The degree of the ground return flow path that preferably, changes according to many antenna needs arranges the shape of isolation channel.
Preferably, isolation channel is groove.
Preferably, many antennas are connected to the different sides on connection of antenna floor.
According on the other hand of the present utility model, a kind of wireless device is provided, it comprises: above-mentioned any one connection of antenna floor.
In the utility model,, isolation channel changes the ground return flow path of many antennas of above-mentioned connection of antenna floor connection by being set on the connection of antenna floor, mode with the ground isolation reduces disturbing mutually of floor electric current, and then impedance operator and the faradic flow path of antenna surface of change antenna, improve the isolation between the antenna, thereby solved the closely problem of disturbing mutually between the antenna.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the connection of antenna floor of the utility model embodiment; And
Fig. 2 is the schematic diagram that is applied to wireless device according to the connection of antenna floor of the utility model embodiment.
Embodiment
Hereinafter also describe in conjunction with the embodiments the utility model in detail with reference to accompanying drawing.Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Present embodiment provides a kind of connection of antenna floor 100, as shown in Figure 1, is provided with one or more isolation channels 102 on the connection of antenna floor 100, is used for the ground return flow path of many antennas of change connection of antenna floor 100 connections.
In the above-described embodiments,, isolation channel changes the ground return flow path of many antennas of above-mentioned connection of antenna floor connection by being set on the connection of antenna floor, mode with the ground isolation reduces disturbing mutually of floor electric current, and then impedance operator and the faradic flow path of antenna surface of change antenna, improve the isolation between the antenna, thereby solved the closely problem of disturbing mutually between the antenna.
In order effectively to change the isolation between the many antennas that connection of antenna floor 100 connects, in this preferred embodiment, as shown in Figure 2, isolation channel 102 is arranged on the ground plate between two adjacent in many antennas antennas.For example, isolation channel 102 is arranged on the ground plate between two antennas 104 and 106 on connection of antenna floor 100, be used for changing the isolation between two antennas 104 and 106, to guarantee in the isolation that improves between the antenna 104 and 106, do not affect the performance parameter of antenna 104 and 106, for example, the resonance frequency of antenna remains unchanged, antenna gain does not descend yet, and bandwidth is not loss almost.
Preferably, in order to change better the isolation between the antenna, in the process that isolation channel 102 is set, the isolation that can regulate is as required regulated the relative distance of two antennas of isolation channel 102 distances, for example, can adjust according to the result of non-source test and active debugging isolation channel 102, it is nearer apart from antenna 104 to adjust isolation channel 102, it is nearer apart from antenna 106 perhaps to adjust isolation channel 102, so that the isolation between two antennas reaches requirement, generally this requires as about 15dB.
In order to regulate neatly the isolation between two antennas, be applicable to simultaneously the use of multiple antenna type, in this preferred embodiment, the distributing point 108 of every antenna is positioned at middle part or the end of this every antenna in many antennas.Distributing point 108 matches with isolation channel 102 for the isolation that changes between two antennas 104 and 106, simultaneously, does not affect the performance of two antennas 104 and 106.Preferably, can select according to the result of non-source test and active debugging the position of the distributing point 108 of antenna, can be the optional position, in order to can match with isolation channel 102 isolation between the antenna adjusted to optimum value.
In order to regulate neatly the isolation between two antennas, be applicable to simultaneously the use of multiple antenna type, in this preferred embodiment, every antenna in many antennas is provided with one or more ground connection feedback points 110.Be that one or more ground connection feedback points 110 can be set on the connection of antenna floor 100, so that in the process of adjusting the isolation between the antenna, can regulate neatly the number of the ground connection feedback point 110 of certain antenna, in order to can match with isolation channel 102 isolation between the antenna be adjusted to optimum value.
Preferably, can select according to the result of non-source test and active debugging the number of ground connection feedback point 110 of antenna and the position of ground connection feedback point 110, one or more ground connection feedback points 110 of every antenna are positioned at middle part or the end of this every antenna.Namely can adjust according to the result of non-source test and active debugging the position of ground connection feedback point 110, it can be the optional position, in order to match with isolation channel 102 isolation between the antenna is adjusted to optimum value, for example, antenna 106 has been selected two ground connection feedback points 110, these two ground connection feedback points 110 lay respectively at the both sides of distributing point 108, and a ground connection feedback point 110 is nearer apart from distributing point 108, and another ground connection feedback point 110 is relatively far away apart from distributing point 108.
Preferably, can also select according to the result of non-source test and active debugging the number combination of distributing point 108 and the ground connection feedback point 110 of certain antenna, for example, as shown in Figure 2, can be chosen as antenna 104 and be provided with 1 distributing point 108, two ground connection feedback points 110 are adjusted to optimum value in order to can match with isolation channel 102 with the isolation between the antenna, also can select a different numbers ground connection feedback point 110 according to the different application scene.
In order to regulate neatly the isolation between two antennas, in this preferred embodiment, the degree of the ground return flow path that changes according to many antenna needs arranges length and the width of isolation channel 102.Namely can adjust according to the result of non-source test and active debugging length, the width of isolation channel 102, to adjust better the isolation between two antennas.
In order to strengthen the flexibility of present embodiment, in this preferred embodiment, the degree of the ground return flow path that changes according to many antenna needs arranges the shape of isolation channel 102.The shape of isolation channel 102 namely can be set according to the result of non-source test and active debugging, with in the isolation that improves between the antenna, do not affect the performance parameter of antenna, for example, the shape of above-mentioned isolation channel 102 can comprise: the shapes such as rectangle, circle, arc line shaped, to adjust better the isolation between two antennas, wherein, rectangle can change the isolation between the antenna effectively, and simply is convenient to realize.
Preferably, above-mentioned isolation channel 102 can be groove.
For satisfying the demand of different application scene, in this preferred embodiment, above-mentioned many antennas are connected to the different sides on connection of antenna floor 100.As shown in Figure 2, in the situation of using above-mentioned connection of antenna floor 100, many antennas can be connected on the different sides on connection of antenna floor 100.
For strengthening the practicality on above-mentioned connection of antenna floor 100, in this preferred embodiment, a kind of preferred wireless device is provided, as shown in Figure 2, this wireless device comprises above-mentioned any one connection of antenna floor 100, for example, this connection of antenna floor 100 can be positioned at the printed circuit board (PCB) 200(Printed Circuit Board of wireless device, referred to as PCB) on, many antennas are positioned on the printed circuit board (PCB), and are connected on the connection of antenna floor 100.Many antennas can comprise antenna 104, antenna 106 and antenna 112, at this moment, between per two antennas an isolation channel 102 can be set.
In order to satisfy the demand of different application scene, in this preferred embodiment, in twos antenna in a plurality of antennas on the above-mentioned wireless device can be the antenna of same frequency, it also can be the antenna of different frequency, for example, can be one is low-frequency antenna, and one is high frequency antenna, by the use on above-mentioned connection of antenna floor 100, can reduce the high order harmonic component of low-frequency antenna to the interference of high frequency antenna.
Come above-mentioned each preferred embodiment is described in detail below in conjunction with accompanying drawing.
This preferred embodiment is suitable for but is not limited to following scene, take the LTE wireless access terminal as example, requires to satisfy the data transmission service of LTE band 2 and band 5, satisfies simultaneously the speech business of band 2 and the band 5 of 3G.And the data service of LTE is to realize two different modules with the speech business of 3G.Wherein, LTE supports the MIMO technology, needs two antennas, and 3G needs an antenna.As shown in Figure 2, the auxiliary antenna 104 of LTE is placed on the top of PCB mainboard 200,3G antenna 104 is placed on the left side, LTE main antenna 112 is placed in zone, the right, if do not take other measures, the band 5 frequency range isolations of testing between 3G antenna 106 and the auxiliary antenna 104 of LTE according to realistic simulation are 9dB, band 2 frequency range isolations are 12dB, band5 frequency range isolation is 11dB between the auxiliary antenna 104 of LTE and the main antenna 112, band2 frequency range isolation is 13dB, isolation band5 frequency range isolation between 3G main antenna 106 and the LTE main antenna 112 is 14dB, band2 frequency range isolation is 17dB, just can meet the demands about 15dB for the isolation General Requirements between two antennas, therefore, in the situation that isolation channel 102 is not set, layout 3G antenna 106 and the auxiliary antenna 104 of LTE, the isolation between the auxiliary antenna 104 of LTE and the main antenna 112 does not obviously meet the demands.
After adopting above-mentioned connection of antenna floor 100, thus can make the ground return flow path change and improve isolation between the antenna.As shown in Figure 2,3G antenna 106, the major-minor antenna 104 of LTE are reserved respectively an antenna feed point 108, two ground connection feedback points 110, the number of antenna feed point 108 and ground connection feedback point 110 can be reserved according to actual needs, and these ground connection feedback points 110 directly link to each other with the ground 100 of mainboard 200.On the right side near 3G antenna 106, open a rectangular channel 102(and be equivalent to above-mentioned isolation channel 102), in preferred this example, the size of isolation channel 102 is 0.2mm*20mm; Onesize isolation channel 102 is opened in the left side of LTE main antenna 112, and these two isolation channels 102 mainly are the effects of isolation with playing.Simultaneously, the position of fluting can be adjusted according to the result of actual non-source test and active debugging, and in this example, two isolation channels 102 are 2mm apart from the distance of 3G antenna 106 and LTE main antenna 112.According to simulation calculation, the resonance frequency of each antenna remains unchanged behind the fluting, and antenna gain does not descend yet, and bandwidth is not loss almost.This moment is according to the band 5 frequency range isolation 16dB between simulation test 3G antenna 106 and the auxiliary antenna 104 of LTE, band 2 frequency range isolation 17dB; Band5 frequency range isolation 17dB between the auxiliary antenna 104 of LTE and the main antenna 112, band2 frequency range isolation 18dB; Isolation band5 frequency range isolation 16dB between 3G main antenna 106 and the LTE main antenna 112, band2 frequency range isolation 18dB, the isolation between above-mentioned each antenna satisfies the requirement of general isolation substantially.Therefore, compare and do not adopt before the above-mentioned ground plate 100, ground plate fluting can change the impedance operator of microstrip antenna and the flow path of surface induction electric current, and then affects the radiation characteristic of antenna, and the isolation of antenna has been had obvious lifting.
Preferably, can adopt equally above-mentioned connection of antenna floor 100 for the antenna of different frequency, improve the isolation between the antenna.
From above description, can find out, the utility model has been realized following technique effect: the ground return flow path that changes many antennas of above-mentioned connection of antenna floor connection by isolation channel is set on the connection of antenna floor, mode with the ground isolation reduces disturbing mutually of floor electric current, and then impedance operator and the faradic flow path of antenna surface of change antenna, improve the isolation between the antenna, thereby solved the closely problem of disturbing mutually between the antenna.Solve the interference problem between the antenna that the products such as present LTE cause the voice-and-data service concurrence, can satisfy the end product miniaturization layout requirements such as mobile phone simultaneously.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.

Claims (10)

1. a connection of antenna floor is characterized in that,
Be provided with one or more isolation channels (102) on the connection of antenna floor (100), for the ground return flow path of many antennas that change described connection of antenna floor (100) connection.
2. connection of antenna according to claim 1 floor is characterized in that, described isolation channel (102) is arranged on the ground plate between two adjacent in described many antennas antennas.
3. connection of antenna according to claim 1 floor is characterized in that the distributing point (108) of every antenna is positioned at middle part or the end of this every antenna in the described many antennas.
4. connection of antenna according to claim 1 floor is characterized in that, every antenna in the described many antennas is provided with one or more ground connection feedback points (110).
5. connection of antenna according to claim 4 floor is characterized in that, one or more ground connection feedback points (110) of described every antenna are positioned at middle part or the end of this every antenna.
6. each described connection of antenna floor in 5 according to claim 1 is characterized in that, the degree of the ground return flow path that changes according to described many antenna needs arranges length and the width of described isolation channel (102).
7. each described connection of antenna floor in 5 according to claim 1 is characterized in that, the degree of the ground return flow path that changes according to described many antenna needs arranges the shape of described isolation channel (102).
8. each described connection of antenna floor in 5 according to claim 1 is characterized in that described isolation channel (102) is groove.
9. each described connection of antenna floor in 5 according to claim 1 is characterized in that described many antennas are connected to the different sides on described connection of antenna floor (100).
10. a wireless device is characterized in that, comprising: each described connection of antenna floor in the claim 1 to 9.
CN 201220298957 2012-06-25 2012-06-25 Antenna earth plate and wireless equipment Expired - Lifetime CN202695724U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN 201220298957 CN202695724U (en) 2012-06-25 2012-06-25 Antenna earth plate and wireless equipment
PCT/CN2012/081552 WO2014000342A1 (en) 2012-06-25 2012-09-18 Antenna ground plate and wireless device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220298957 CN202695724U (en) 2012-06-25 2012-06-25 Antenna earth plate and wireless equipment

Publications (1)

Publication Number Publication Date
CN202695724U true CN202695724U (en) 2013-01-23

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CN 201220298957 Expired - Lifetime CN202695724U (en) 2012-06-25 2012-06-25 Antenna earth plate and wireless equipment

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WO (1) WO2014000342A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103439711A (en) * 2013-08-01 2013-12-11 华为终端有限公司 Wireless terminal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6624789B1 (en) * 2002-04-11 2003-09-23 Nokia Corporation Method and system for improving isolation in radio-frequency antennas
CN101383449A (en) * 2008-09-04 2009-03-11 北京航空航天大学 Method for enhancing antenna separation degree
CN201345425Y (en) * 2008-09-27 2009-11-11 耀登科技股份有限公司 Double-frequency space diversity double antenna for movable termination
CN201638932U (en) * 2010-01-29 2010-11-17 浙江大学 Planar multi-input multi-output antenna for wireless communication terminal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103439711A (en) * 2013-08-01 2013-12-11 华为终端有限公司 Wireless terminal
CN103439711B (en) * 2013-08-01 2016-01-20 华为终端有限公司 Wireless terminal

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Publication number Publication date
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CX01 Expiry of patent term
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Granted publication date: 20130123