CN204497364U - A kind of multi-input/output antenna and terminal - Google Patents
A kind of multi-input/output antenna and terminal Download PDFInfo
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- CN204497364U CN204497364U CN201520082229.4U CN201520082229U CN204497364U CN 204497364 U CN204497364 U CN 204497364U CN 201520082229 U CN201520082229 U CN 201520082229U CN 204497364 U CN204497364 U CN 204497364U
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Abstract
The utility model provides a kind of multi-input/output antenna and terminal, and described multi-input/output antenna comprises: medium substrate; Be symmetricly set on the first radiation patch and second radiation patch of medium substrate upper surface; Be symmetricly set on the first microband paste and second microband paste of medium substrate lower surface; Symmetrically arranged first short circuit post and the second short circuit post, wherein the two ends of the first short circuit post are connected with described first radiation patch and described first microband paste respectively, and the two ends of described second short circuit post are connected with described second radiation patch and described second microband paste respectively.Multi-input/output antenna of the present utility model can use under less bulk, and function admirable, effectively can improve the isolation between two antennas, solve inter-antenna interference problem in multi-input multi-output antenna system, for the application of multi-input/output antenna technology in the Miniature Terminal such as mobile phone, wireless access equipment is laid a good foundation.
Description
Technical field
The utility model relates to the communications field, particularly relates to a kind of multi-input/output antenna and terminal.
Background technology
In recent years, radio communication was just towards Large Copacity, high transmission rates and high reliability future development, and this makes, for limited frequency spectrum resource, how to improve the availability of frequency spectrum to greatest extent, became a heat subject of current research.Multiple-input and multiple-output (Multiple-Input Multiple-Output, MIMO) technology is the important breakthrough of wireless mobile communications field antenna technology, fully develop space resources, receiving terminal and transmitting terminal all adopt multiple antenna, form multiaerial system, on limited frequency spectrum resource and under fixing transmitting power, the capacity of communication system can be increased exponentially, improve communication quality, the requirement to Large Copacity high quality communication can be met, effective raising availability of frequency spectrum, alleviates the demand to frequency spectrum resource growing tension.Meanwhile, adopt multiple antenna at transmitting terminal or receiving terminal, significantly can overcome the decline of channel, reduce the error rate, improve the reliability and stability of wireless communication system.This technology is the core technology of LTE and forth generation mobile communication system (4G).
Up to now, the application of MIMO technology is also subject to the restriction of some factors.An important factor is exactly number and the pitch problems of antenna.For terminal equipment, on the one hand user requires miniaturized high-quality Consumer's Experience, on the other hand while each antenna of mimo antenna system requirements radio frequency with balance and electromagnetic performance, has high-isolation and low envelope correlation coefficient.In traditional mimo antenna system, the position that during layout, antenna is put is as far as possible far away, and usually in the distance of half operation wavelength, the isolation of antenna is enough large, and such layout to reach certain effect.But for wireless terminal product, as products such as mobile phone, data card, CPE, such distance is very harsh requirement, therefore in effective space, how to complete the design of multiple antenna, while guarantee antenna efficiency, cut down the coupling between each antenna thus ensure higher isolation, becoming the key issue of terminal mimo antenna design.
For improving the coupling isolation between mimo antenna, usually can following methods be used, as: increase antenna distance; Increase parasitic conductor or parasitic gap structure; Introduce electro-magnetic bandgap EBG structure; Adopt defect ground structure, slot in floor; Increase network to change antenna feed and phase change mutual coupling of antenna; With line, decoupling circuit in increase.And increase the restriction that antenna distance is often subject to astronomical cycle volume in actual applications; Increase parasitic conductor or parasitic gap structure can increase the headroom of antenna; Introduce EBG structure, the cutting of antenna floor and increase network and all need larger antenna floor, be unfavorable for the miniaturization of antenna equally, realize bandwidth narrower simultaneously.
Utility model content
In order to overcome the above problem existed in prior art, the utility model embodiment provides a kind of multi-input/output antenna and terminal, and this multi-input/output antenna can use in less space, and has high-isolation and good excellent radiation efficiency.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
According to an aspect of the utility model embodiment, provide a kind of multi-input/output antenna, comprising: medium substrate;
Be symmetricly set on the first radiation patch and second radiation patch of described medium substrate upper surface; Be symmetricly set on the first microband paste and second microband paste of described medium substrate lower surface; Symmetrically arranged first short circuit post and the second short circuit post, wherein the two ends of the first short circuit post are connected with described first radiation patch and described first microband paste respectively, and the two ends of described second short circuit post are connected with described second radiation patch and described second microband paste respectively.Alternatively, described multi-input/output antenna also comprises:
Be arranged on the first excitation port of described medium substrate upper surface, be connected with described first radiation patch, for carrying out feed to described first radiation patch; And
Be arranged on the second excitation port of described medium substrate upper surface, be connected with described second radiation patch, for carrying out feed to described second radiation patch.
Alternatively, described first radiation patch comprises:
The first connecting portion connected successively, the second connecting portion and the 3rd connecting portion, wherein, one end of described second connecting portion is connected with the positive pole of described first excitation port, and one end of described first connecting portion is connected with the negative pole of described first excitation port.
Alternatively, the shape of described first connecting portion, the second connecting portion and the 3rd connecting portion is tortuous wire.
Alternatively, described second radiation patch comprises:
The 4th connecting portion connected successively, the 5th connecting portion and the 6th connecting portion, wherein, one end of described 5th connecting portion is connected with the positive pole of described second excitation port, and one end of described 4th connecting portion is connected with the negative pole of described second excitation port.
Alternatively, described medium substrate is made by ceramic material, macromolecular material or ferromagnetic material.
According to another aspect of the utility model embodiment, additionally provide a kind of terminal, comprise multi-input/output antenna as above.
The beneficial effect of the utility model embodiment: the multi-input/output antenna in the utility model embodiment is made up of the antenna element of two full symmetrics, after wherein the radiation patch of each antenna element carries out feed by each self-corresponding excitation port, again by the microband paste of each self-corresponding short circuit post to correspondence, wherein, the coupling capacitance of the inductance of short circuit post self and radiation patch and microband paste generation offsets, thus extends bandwidth; Two radiation patch can produce couple current on relative antenna element simultaneously, couple current also arrives two microband pastes by two short circuit posts, owing to being symmetrical structure, two microband pastes constitute and offset micro-band, the reverse current of two micro-band inner side generations is cancelled out each other, thus improves the isolation of two antenna elements; The outside minor matters offseting micro-band in addition can continue radiated electromagnetic wave, the frequency of antenna element are accomplished so again very low, thus achieve multi-input/output antenna miniaturization, effectively reduce size, improve isolation and add bandwidth.
Accompanying drawing explanation
Fig. 1 is the front view of the multi-input/output antenna of the utility model embodiment; ;
Fig. 2 is the end view of the multi-input/output antenna of the utility model embodiment;
Fig. 3 is the structural representation of the medium substrate upper surface of the utility model embodiment;
Fig. 4 is the structural representation of the medium substrate lower surface of the utility model embodiment;
Fig. 5 is the front view of the terminal of the utility model embodiment;
Fig. 6 is the end view of the terminal of the utility model embodiment.
Wherein Reference numeral:
1, the first radiation patch; 101, the first connecting portion; 102, the second connecting portion; 103, the 3rd connecting portion; 2, the second radiation patch; 201, the 4th connecting portion; 202, the 5th connecting portion; 203, the 6th connecting portion; 3, the first microband paste; 4, the second microband paste; 5, the first short circuit post; 6, the second short circuit post; 7, the first excitation port; 8, the second excitation port; 9, medium substrate; 10, antenna floor; 11, upper surface antenna floor; 12, lower surface antenna floor.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1 to 4, the utility model embodiment provides a kind of multi-input/output antenna, and described multi-input/output antenna comprises: medium substrate 9; Be symmetricly set on the first radiation patch 1 and the second radiation patch 2 of medium substrate 9 upper surface; Be symmetricly set on the first microband paste 3 and the second microband paste 4 of medium substrate 9 lower surface; Symmetrically arranged first short circuit post 5 and the second short circuit post 6, wherein the two ends of the first short circuit post 5 are connected with the first radiation patch 1 and the first microband paste 3 respectively, and the two ends of the second short circuit post 6 are connected with the second radiation patch 2 and the second microband paste 4 respectively.
Multi-input/output antenna in the utility model embodiment is made up of the antenna element of two full symmetrics, wherein each antenna element comprises: radiation patch, microband paste and short circuit post, after each radiation patch carries out feed by each self-corresponding excitation port, again by the microband paste of each self-corresponding short circuit post to correspondence, wherein, the coupling capacitance of the inductance of short circuit post self and radiation patch and microband paste generation offsets, thus extends bandwidth; Two radiation patch can produce couple current on relative antenna element simultaneously, couple current also arrives two microband pastes by two short circuit posts, owing to being symmetrical structure, two microband pastes constitute and offset micro-band, the reverse current of two micro-band inner side generations is cancelled out each other, thus improves the isolation of two antenna elements; The outside minor matters offseting micro-band in addition can continue radiated electromagnetic wave, the frequency of antenna element are accomplished so again very low, thus achieve multi-input/output antenna miniaturization, effectively reduce size, improve isolation and add bandwidth.
Further, described medium substrate 9 can be made by ceramic material, macromolecular material or ferromagnetic material.
Further, described multi-input/output antenna also comprises: the first excitation port 7 being arranged on medium substrate 9 upper surface, is connected with described first radiation patch 1, for carrying out feed to the first radiation patch 1; And be arranged on the second excitation port 8 of medium substrate 9 upper surface, be connected with described second radiation patch 2, for carrying out feed to described second radiation patch 2.
Continue see Fig. 1 and Fig. 3, further, described first radiation patch 1 comprises:
The first connecting portion 101, second connecting portion 102 connected successively and the 3rd connecting portion 103, wherein, one end of the second connecting portion 102 is connected with the positive pole of the first excitation port 7, and one end of the first connecting portion 101 is connected with the negative pole of described first excitation port 7.Here it should be noted that, the first excitation port 7 also can be oppositely arrange, and namely can be that one end of the second connecting portion 102 is connected with the negative pole of the first excitation port 7, one end of the first connecting portion 101 be connected with the positive pole of the first excitation port 7.
Wherein, the first connecting portion 101, second connecting portion 102 and the 3rd connecting portion 103 all can be designed to meander line, to reduce antenna headroom area; Wherein, first excitation port 7 also can other positions between the first connecting portion 101 and the second connecting portion 102, and adopt asymmetrical feed in the utility model embodiment, Antenna Operation can be made in different frequency ranges, described asymmetrical feed refers to that the first connecting portion 101 and the second connecting portion 102 do not form axially symmetric structure, thus forms asymmetrical feed.
Continue see Fig. 1, further, described second radiation patch 2 comprises:
The 4th connecting portion 201 connected successively, the 5th connecting portion 202 and the 6th connecting portion 203, wherein, one end of the 5th connecting portion 202 is connected with the positive pole of the second excitation port 8, and one end of the 4th connecting portion 201 is connected with the negative pole of the second excitation port 8.Here it should be noted that, the second excitation port 8 also can be oppositely arrange, and namely can be that one end of the 5th connecting portion 202 is connected with the negative pole of the first excitation port 8, one end of the 4th connecting portion 101 be connected with the positive pole of the second excitation port 8.
Wherein, the 4th connecting portion 201, the 5th connecting portion 202 and the 6th connecting portion 203 all can be designed to meander line, to reduce antenna headroom area; Second excitation port 8 also can other positions between the 4th connecting portion 201 and the 5th connecting portion 202, and adopt asymmetrical feed in the utility model embodiment, and Antenna Operation can be made in different frequency ranges.
It should be noted that, the shape of the first radiation patch 1 and the second radiation patch 2 can be designed to L shape or other meander-shaped as required, and this real new embodiment does not limit this.
Further, the spacing between described first micro strip 3 and described second micro strip 4 can be arranged as required, thus can realize higher isolation; First micro strip 3 can design as required with the shape of described second micro strip 4 simultaneously, thus realizes the adjustment of antenna impedance bandwidth sum operating frequency.
Further, the thickness of described first short circuit post 5 and described second short circuit post 6 can adjust according to the needs of actual design, to realize the adjustment of antenna impedance bandwidth.
According to another aspect of the utility model embodiment, additionally provide a kind of terminal, as shown in figures 5 and 6, described terminal comprises multi-input/output antenna as above, described terminal also comprises antenna floor 10, and antenna floor 10 comprises: upper surface antenna floor 11 and lower surface antenna floor 12.Wherein, described terminal includes but not limited to mobile phone, also can be applied in all places can applying this multi-input/output antenna such as wireless routing.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (7)
1. a multi-input/output antenna, is characterized in that, comprising:
Medium substrate (9);
Be symmetricly set on the first radiation patch (1) and second radiation patch (2) of described medium substrate (9) upper surface; Be symmetricly set on the first microband paste (3) and second microband paste (4) of described medium substrate (9) lower surface; Symmetrically arranged first short circuit post (5) and the second short circuit post (6), wherein the two ends of the first short circuit post (5) are connected with described first radiation patch (1) and described first microband paste (3) respectively, and the two ends of described second short circuit post (6) are connected with described second radiation patch (2) and described second microband paste (4) respectively.
2. multi-input/output antenna according to claim 1, is characterized in that, described multi-input/output antenna also comprises:
Be arranged on first excitation port (7) of described medium substrate (9) upper surface, be connected with described first radiation patch (1), for carrying out feed to described first radiation patch (1); And
Be arranged on second excitation port (8) of described medium substrate (9) upper surface, be connected with described second radiation patch (2), for carrying out feed to described second radiation patch (2).
3. multi-input/output antenna according to claim 2, is characterized in that, described first radiation patch (1) comprising:
The first connecting portion (101) connected successively, the second connecting portion (102) and the 3rd connecting portion (103), wherein, one end of described second connecting portion (102) is connected with the positive pole of described first excitation port (7), and one end of described first connecting portion (101) is connected with the negative pole of described first excitation port (7).
4. multi-input/output antenna according to claim 3, is characterized in that, the shape of described first connecting portion (101), the second connecting portion (102) and the 3rd connecting portion (103) is tortuous wire.
5. multi-input/output antenna according to claim 2, is characterized in that, described second radiation patch (2) comprising:
The 4th connecting portion (201) connected successively, the 5th connecting portion (202) and the 6th connecting portion (203), wherein, one end of described 5th connecting portion (202) is connected with the positive pole of described second excitation port (8), and one end of described 4th connecting portion (201) is connected with the negative pole of described second excitation port (8).
6. multi-input/output antenna according to claim 1, is characterized in that, described medium substrate (9) is made by ceramic material, macromolecular material or ferromagnetic material.
7. a terminal, is characterized in that, comprises the multi-input/output antenna as described in any one of claim 1 ~ 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520082229.4U CN204497364U (en) | 2015-01-27 | 2015-02-05 | A kind of multi-input/output antenna and terminal |
| PCT/CN2015/084839 WO2016123924A1 (en) | 2015-02-05 | 2015-07-22 | Multi-input multi-output antenna and terminal |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057995 | 2015-01-27 | ||
| CN2015200579955 | 2015-01-27 | ||
| CN201520082229.4U CN204497364U (en) | 2015-01-27 | 2015-02-05 | A kind of multi-input/output antenna and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204497364U true CN204497364U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520082229.4U Active CN204497364U (en) | 2015-01-27 | 2015-02-05 | A kind of multi-input/output antenna and terminal |
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| CN (1) | CN204497364U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546488A (en) * | 2016-06-27 | 2018-01-05 | 英特尔Ip公司 | The frequency reconfigurable antenna decoupling of radio communication |
| WO2021227776A1 (en) * | 2020-05-12 | 2021-11-18 | 深圳市华信天线技术有限公司 | Patch antenna |
| CN114824768A (en) * | 2022-03-31 | 2022-07-29 | 上海创功通讯技术有限公司 | Loop antenna and TWS earphone |
-
2015
- 2015-02-05 CN CN201520082229.4U patent/CN204497364U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546488A (en) * | 2016-06-27 | 2018-01-05 | 英特尔Ip公司 | The frequency reconfigurable antenna decoupling of radio communication |
| WO2021227776A1 (en) * | 2020-05-12 | 2021-11-18 | 深圳市华信天线技术有限公司 | Patch antenna |
| CN114824768A (en) * | 2022-03-31 | 2022-07-29 | 上海创功通讯技术有限公司 | Loop antenna and TWS earphone |
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