WO2013170798A1 - 一种多输入多输出天线、系统及移动终端 - Google Patents
一种多输入多输出天线、系统及移动终端 Download PDFInfo
- Publication number
- WO2013170798A1 WO2013170798A1 PCT/CN2013/077510 CN2013077510W WO2013170798A1 WO 2013170798 A1 WO2013170798 A1 WO 2013170798A1 CN 2013077510 W CN2013077510 W CN 2013077510W WO 2013170798 A1 WO2013170798 A1 WO 2013170798A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antenna
- pcb
- loop
- mimo
- ground
- Prior art date
Links
- 230000008878 coupling Effects 0.000 abstract description 8
- 238000010168 coupling process Methods 0.000 abstract description 8
- 238000005859 coupling reaction Methods 0.000 abstract description 8
- 238000002955 isolation Methods 0.000 abstract description 6
- WEJZHZJJXPXXMU-UHFFFAOYSA-N 2,4-dichloro-1-phenylbenzene Chemical compound ClC1=CC(Cl)=CC=C1C1=CC=CC=C1 WEJZHZJJXPXXMU-UHFFFAOYSA-N 0.000 description 11
- 238000004891 communication Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
Definitions
- Multi-input multi-output antenna system and mobile terminal
- the present invention relates to the field of wireless communication technologies, and in particular, to a multiple-input multiple-output (MIMO) antenna, system, and mobile terminal.
- MIMO multiple-input multiple-output
- MIMO wireless communication technology With the rapid development of wireless communication technology, mobile users have higher and higher requirements for the capacity and quality of wireless communication. Therefore, a multi-transmission and multi-receiving technology, namely MIMO wireless communication technology, has been proposed.
- MIMO wireless communication technology the MIMO wireless communication system employs multiple antenna units at both the transmitting end and the receiving end. Therefore, the design of the MIMO antenna in the MIMO wireless communication system becomes an important part.
- the main object of the present invention is to provide a MIMO antenna, a system, and a mobile terminal, which can relatively concentrate the coupling current between the MIMO antenna and the printed circuit board (PCB) and have a small current amplitude. Improve the isolation of the antenna.
- the technical solution of the present invention is achieved as follows:
- the present invention provides a MIMO antenna, including: a PCB board, an antenna connected to the PCB and the board, a feeding system, and a matching circuit, wherein the antenna connected to the PCB passes through the matching circuit and the
- the antenna connected to the PCB is an antenna of a loopback loop structure, and a grounding loop of the antenna connected to the PCB and a gap between the PCBs are fixed.
- the present invention also provides a MIMO antenna system, comprising: a PCB board, a first antenna and a second antenna connected to the PCB board, a first power feeding system, a second power feeding system, a first matching circuit, and a second a matching circuit, wherein the first antenna is connected to the first feeding system through the first matching circuit, and the second antenna is connected to the second feeding system through the second matching circuit;
- the first antenna and the second antenna are both antennas of the Loop structure, and the ground loop of the first antenna and the ground loop of the second antenna each have a fixed width gap with the PCB.
- the antenna of the Loop structure includes: a ground loop, and a ground point connected to one end of the ground loop, an antenna radiator, and a signal feed point connected to one end of the antenna radiator; wherein the antenna radiator The other end is connected to the other end of the ground loop, and the contact loop and the antenna radiator form an annular loop structure.
- the present invention further provides a mobile terminal, comprising the MIMO antenna system of any of the above.
- the MIMO antenna, system and mobile terminal provided by the invention have the following advantages and features:
- the MIMO antenna of the present invention adopts a special loop structure antenna form, and a gap structure with a fixed width is formed between the ground loop of the antenna of the Loop structure and the PCB, so that the coupling current of the antenna in the PCB is concentrated in the gap structure, and the PCB is lowered. The amplitude of the coupled current.
- the MIMO antenna system of the present invention uses two MIMO antennas to share one PCB,
- the MIMO antenna adopts a loop structure antenna, and the ground loop of the loop structure antenna and the PCB form a gap structure with a fixed width. Therefore, the current mutual interference of the two MIMO antennas on the PCB can be reduced without sacrificing the radiation direction of the antenna. Under the premise of the figure, the coupling between the two MIMO antennas is reduced, and the isolation is improved.
- the MIMO antenna of the present invention can be used in both PCB printing form and bracket antenna form, and has a low cost and flexible structure. Therefore, it can be widely applied to MIMO antenna systems, and thus can be applied to various types of mobile terminals. . DRAWINGS
- FIG. 1 is a schematic structural view 1 of a MIMO antenna according to the present invention.
- FIG. 2 is a schematic structural diagram 2 of a MIMO antenna according to the present invention.
- FIG. 3 is a schematic structural diagram of a MIMO antenna system according to the present invention. detailed description
- FIG. 1 is a schematic structural diagram 1 of a MIMO antenna according to the present invention.
- the MIMO antenna includes: a PCB 7, and a connection with the PCB 7.
- the first antenna 1 is an antenna of a Loop structure, and a gap 8 having a fixed width is formed between the ground loop 11 of the first antenna 1 and the PCB 7.
- the first antenna 1 includes: a grounding loop 11, a grounding point 13 connected to one end of the grounding loop 11, an antenna radiator 12, and a signal feeding point 14 connected to one end of the antenna radiator 12; wherein the antenna radiates
- the other end of the body 12 is connected to the other end of the grounding circuit 11, and the grounding circuit 11 and the antenna radiator 12 constitute an annular circuit structure.
- the ground loop 11 and the PCB 7 have a slit 8 of a fixed width, which can make the coupling current of the first antenna 1 in the PCB 7 relatively concentrated, and reduce the coupling on the PCB 7.
- the current distribution amplitude; wherein the antenna radiation body 12 can be adjusted according to a specific working frequency band and a PCB structure, and is not limited to the structure shown in FIG.
- the first antenna 1 may be in the form of PCB printing or a form of a bracket antenna; and the routing form of the grounding circuit 11 may also adopt different design schemes according to specific situations, such as Specifically, the length of the grounding circuit is increased. As shown in FIG. 2, the length of the grounding circuit is increased by using a "bow" type of wiring. FIG. 2 is only for explaining the present invention, and does not limit the protection of the present invention. range.
- FIG. 3 is a schematic structural diagram of a MIMO antenna system according to the present invention.
- the MIMO antenna system includes: a first antenna 1 and a second antenna 2 connected to the PCB 7, a first feeding system 3, a second feeding system 4, a first matching circuit, and a 5 second matching circuit 6; wherein the first antenna 1 at the top of the mobile terminal, connected to the first feeding system 3 through the first matching circuit 5, and the signal received by the first antenna 1 is transmitted to the main receiver through the first feeding system 3
- the first matching circuit 5 is an impedance matching adjusting device between the first antenna 1 and the first feeding system 3, because the first feeding system 3
- the inlet is 50 ohm impedance, and the first antenna 1 generally cannot be made to be ideal 50 ohms. Therefore, in the operating frequency band, the first antenna 1 and the first feeding system are adjusted by an impedance matching
- the second antenna 2 is connected to the second feeding system 4 through the second matching circuit 6, and the second matching circuit 6 is between the second antenna 2 and the second feeding system 4
- the impedance matching adjustment device where the second antenna 2 works in the same principle as the first antenna 1, and the second antenna 2 is in the working frequency band and the second through the impedance matching adjustment device.
- Feed system 4 achieves impedance matching effect;
- the first antenna 1 and the second antenna 2 are both antennas of a Loop structure, and the first antenna
- the ground loop of 1 and the ground loop of the second antenna 2 have a fixed width gap with the PCB 7.
- the first antenna 1 is in a first clearance area
- the second antenna 2 is in a second clearance area
- the PCB 7 is a PCB of a mobile terminal, and may be a multi-layer structure board.
- the first antenna 1 and the second antenna 2 are respectively at the top and the side of the PCB 7, but in a practical application, the first antenna 1 and the The position of the second antenna 2 is not limited to the case shown in FIG. 3, and the positions of the first antenna 1 and the second antenna 2 may be adjusted according to a specific structure and a layout of the PCB 7.
- the MIMO antenna system of the present invention uses two MIMO antennas to share one PCB. Since the MIMO antenna adopts a loop structure antenna, and the loop structure of the loop structure antenna and the PCB form a fixed gap structure, the two can be reduced.
- the current mutual interference of the MIMO antenna on the PCB reduces the coupling between the two MIMO antennas and improves the isolation without sacrificing the radiation pattern of the antenna.
- the present invention further discloses a mobile terminal comprising any of the MIMO antenna systems described above.
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- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Support Of Aerials (AREA)
- Telephone Set Structure (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13790063.5A EP2889956A4 (en) | 2012-09-27 | 2013-06-19 | MULTIPLE INPUT AND MULTI OUTPUT ANTENNA, SYSTEM AND MOBILE TERMINAL |
JP2015532277A JP5996116B2 (ja) | 2012-09-27 | 2013-06-19 | マルチ入力マルチ出力アンテナ、システム及び移動端末 |
US14/431,612 US9954275B2 (en) | 2012-09-27 | 2013-06-19 | Multiple-input multiple-output antenna, system and mobile terminal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210374387.8 | 2012-09-27 | ||
CN201210374387.8A CN102916253B (zh) | 2012-09-27 | 2012-09-27 | 一种多输入多输出天线、系统及移动终端 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013170798A1 true WO2013170798A1 (zh) | 2013-11-21 |
Family
ID=47614544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/077510 WO2013170798A1 (zh) | 2012-09-27 | 2013-06-19 | 一种多输入多输出天线、系统及移动终端 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9954275B2 (zh) |
EP (1) | EP2889956A4 (zh) |
JP (1) | JP5996116B2 (zh) |
CN (1) | CN102916253B (zh) |
WO (1) | WO2013170798A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112201951A (zh) * | 2020-09-28 | 2021-01-08 | 上海摩勤智能技术有限公司 | 一种天线支架的多天线布局结构及移动终端 |
Families Citing this family (8)
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CN102916253B (zh) * | 2012-09-27 | 2016-08-03 | 中兴通讯股份有限公司 | 一种多输入多输出天线、系统及移动终端 |
CN104300211B (zh) | 2013-07-17 | 2019-08-30 | 中兴通讯股份有限公司 | 一种mimo天线、终端及其提高隔离度的方法 |
TW201511407A (zh) * | 2013-09-05 | 2015-03-16 | Quanta Comp Inc | 天線模組 |
CN106129636B (zh) * | 2016-06-08 | 2017-12-19 | 广东欧珀移动通信有限公司 | 移动终端的gnss天线系统、移动终端及电子设备 |
WO2018120921A1 (en) * | 2016-12-29 | 2018-07-05 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Mobile terminal |
CN107275781A (zh) * | 2017-06-23 | 2017-10-20 | 曲龙跃 | 一种用于多层金属板的分离式环形天线 |
CN110534874B (zh) * | 2018-05-23 | 2022-02-25 | 中兴通讯股份有限公司 | 一种终端设备天线装置及实现方法 |
CN110854523B (zh) * | 2019-11-28 | 2021-12-31 | 歌尔科技有限公司 | 一种电子设备及其天线系统 |
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2012
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2013
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- 2013-06-19 JP JP2015532277A patent/JP5996116B2/ja active Active
- 2013-06-19 WO PCT/CN2013/077510 patent/WO2013170798A1/zh active Application Filing
- 2013-06-19 US US14/431,612 patent/US9954275B2/en active Active
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CN101872897A (zh) * | 2009-03-17 | 2010-10-27 | 捷讯研究有限公司 | 用于多输入、多输出的手持设备的宽带、高隔离度两端口天线阵列 |
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CN102916253A (zh) * | 2012-09-27 | 2013-02-06 | 中兴通讯股份有限公司 | 一种多输入多输出天线、系统及移动终端 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112201951A (zh) * | 2020-09-28 | 2021-01-08 | 上海摩勤智能技术有限公司 | 一种天线支架的多天线布局结构及移动终端 |
CN112201951B (zh) * | 2020-09-28 | 2023-03-10 | 上海摩勤智能技术有限公司 | 一种天线支架的多天线布局结构及移动终端 |
Also Published As
Publication number | Publication date |
---|---|
EP2889956A1 (en) | 2015-07-01 |
CN102916253B (zh) | 2016-08-03 |
US20150255864A1 (en) | 2015-09-10 |
JP2015534362A (ja) | 2015-11-26 |
CN102916253A (zh) | 2013-02-06 |
EP2889956A4 (en) | 2015-08-19 |
US9954275B2 (en) | 2018-04-24 |
JP5996116B2 (ja) | 2016-09-21 |
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