WO2018219070A1 - Structure de terminal multi-antenne et terminal mobile - Google Patents

Structure de terminal multi-antenne et terminal mobile Download PDF

Info

Publication number
WO2018219070A1
WO2018219070A1 PCT/CN2018/084251 CN2018084251W WO2018219070A1 WO 2018219070 A1 WO2018219070 A1 WO 2018219070A1 CN 2018084251 W CN2018084251 W CN 2018084251W WO 2018219070 A1 WO2018219070 A1 WO 2018219070A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
metal
antenna structure
spacer
slit
Prior art date
Application number
PCT/CN2018/084251
Other languages
English (en)
Chinese (zh)
Inventor
陈玉稳
黄奂衢
Original Assignee
维沃移动通信有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2018219070A1 publication Critical patent/WO2018219070A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • 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

Definitions

  • the present disclosure relates to the field of electronic technologies, and more particularly, to a terminal multi-antenna structure and a mobile terminal.
  • a mobile terminal with a high proportion of metal or conductive components is used, and a certain structure (two or more) of a slit 100 is often used in the antenna structure of the mobile terminal.
  • the antenna arm 200 has a relatively strong electric field strength when the side of the slit is used as the radiating end of the antenna, so that it is easier to couple to the antenna on the other side of the slit, and the isolation between the multiple antennas is deteriorated.
  • the technical problem to be solved by the present disclosure is to provide an antenna structure and a mobile terminal to solve the problem of poor isolation between multiple antennas of a mobile terminal in the related art.
  • a terminal multi-antenna structure including:
  • the metal portion is provided with at least one slit, and the metal structures on both sides of the fracture correspond to at least one antenna arm respectively;
  • a spacer for isolating the antenna arms on both sides is disposed in the slit, the spacer has electrical conductivity, and the spacer is grounded by a predetermined frequency selection network.
  • a mobile terminal comprising: the terminal multi-antenna structure as described above.
  • the terminal multi-antenna structure of the embodiment of the present disclosure has a metal portion forming an antenna, the metal portion is provided with at least one slit, and the metal structures on both sides of the fracture correspond to at least one antenna arm respectively; At least one spacer of the antenna arms on both sides, the spacer is electrically conductive, and the spacer is grounded by a predetermined frequency selection network. In this way, by adding spacers in the gap between the antennas, the mutual coupling between the multiple antennas on both sides of the fracture is reduced, the isolation between the multiple antennas is improved, and the antenna performance is optimized.
  • the isolation piece selects the network ground through the preset frequency, so that the isolation piece can have different impedance responses to the antennas on both sides of the fracture, thereby improving the isolation between the multiple antennas and improving the degree of freedom of antenna performance debugging. Moreover, the break width of the slit to be increased can be reduced, the appearance effect is ensured, and the overall product competitiveness and user experience can be maintained. The problem of poor isolation between multiple antennas of a mobile terminal in the related art is solved.
  • FIG. 1 is a schematic diagram of a terminal multi-antenna structure in the related art
  • FIG. 2 is a schematic diagram of a multi-antenna structure of the terminal of the present disclosure
  • FIG. 3 is a schematic diagram of a specific implementation of a multi-antenna structure of a terminal according to the present disclosure.
  • a terminal multi-antenna structure including:
  • the metal portion 1, the metal portion 1 is provided with at least one slit 11, the metal structures on both sides of the fracture 11 respectively correspond to at least one antenna arm 12;
  • a spacer 2 for isolating the two side antenna arms 12 is disposed in the slit 11, the spacer 2 has electrical conductivity, and the spacer 2 is grounded through a predetermined frequency selection network 3.
  • the spacer 2 is grounded through the preset frequency selection network 3, so that the spacer 2 can have different impedance responses to the antennas on both sides of the slit, thereby improving the isolation between the multiple antennas and improving the degree of freedom in debugging the performance of the antenna. .
  • the spacer 2 is a separate structure inserted in the slit, and the spacer 2 may be made of a metal material (but is not limited thereto).
  • spacers 2 for isolating the antenna arms 12 on both sides may be provided in each of the slits 11 respectively.
  • the metal portion 1 may be an inner metal outline of a metal frame, a metal ring, a metal shell or a non-metal material, or a multi-antenna structure in a non-metallic shape and a contour.
  • a part of the metal casing may be laterally hollowed out, divided into an antenna area and a main ground, the antenna area is used as the metal part 1, and a slit 11 is arranged in the longitudinal direction of the antenna area, and is broken into at least two.
  • Antenna arm 12 is used when a metal casing is used, a part of the metal casing may be laterally hollowed out, divided into an antenna area and a main ground, the antenna area is used as the metal part 1, and a slit 11 is arranged in the longitudinal direction of the antenna area, and is broken into at least two.
  • Antenna arm 12 is arranged in the longitudinal direction of the antenna area, and is broken into at least two.
  • the terminal multi-antenna structure of the embodiment of the present disclosure by adding the spacer 2 to the slit 11 between the antennas, the mutual coupling between the multiple antennas on both sides of the fracture 11 is reduced, the isolation between the multiple antennas is improved, and the optimization is optimized.
  • Antenna performance The isolation piece 2 is grounded through the preset frequency selection network 3, so that the isolation piece 2 can have different impedance responses to the antennas on both sides of the fracture 11 to improve the isolation between the multiple antennas and improve the degree of freedom of antenna performance debugging. .
  • the breaking width of the slit 11 to be increased can be reduced, the appearance effect is ensured, and the overall product competitiveness and user experience can be maintained.
  • the problem of poor isolation between multiple antennas of a mobile terminal in the related art is solved.
  • the spacer 2 can be close to the short-circuit state on one side of the fracture 11 and close to the open on the other antenna.
  • the state, so that the antenna on both sides of the fracture 11 can have different responses and effects, so there is a higher degree of freedom in antenna performance debugging.
  • the position of the spacer 2 can be optimized, that is, the spacer 2 can be disposed in the slit 11 in a centered manner, or can be set in a non-centered manner. In the fracture 11 to achieve better antenna performance.
  • the spacer 2 when the spacer 2 presents a short-circuit (ground) state to a side antenna, the spacer 2 can be adjusted to deviate from the side antenna, that is, the antenna that presents the open state to the other side is approached to reduce the short circuit condition.
  • the effect on the performance of the side antenna Moreover, this method tends to reduce the need to increase the width of the slit 11 to ensure the appearance and has better antenna performance.
  • the metal portion 1 may be the top or bottom of the metal middle frame of the terminal (but is not limited thereto).
  • the antenna arm 12 can be grounded through the feed 5 .
  • the feed 5 generally refers to a portion where the feed line is connected to the antenna, and the feed line generally refers to a transmission line whose RF front end is connected to the antenna.
  • the metal portion 1 of the antenna arm 12 and the slit 11 is provided as a metal middle frame top or bottom.
  • the metal middle frame is broken into three metal structures by providing two slits 11 at the top or bottom of the metal frame, wherein the metal structure between the two fractures 11 is divided into two antenna arms 12 by grounding, and the other two
  • the metal structures act as an antenna arm 12, respectively, thereby breaking the top or bottom of the metal middle frame into four antenna arms 12, each antenna arm 12 being grounded through a feed.
  • a slit 2 is disposed in the slit 11 and the spacer 2 is a separate structure inserted in the slit 11 .
  • the spacer 2 is grounded by the preset frequency selection network 3.
  • the preset frequency selection network 3 and the feed 5 are disposed between the metal middle frame and the main ground 4 of the terminal circuit.
  • the spacer 2 is grounded through the preset frequency selection network 3, so that the spacer 2 can have different impedance responses to the antennas on both sides of the slit 11 to improve the degree of freedom in antenna performance debugging.
  • the spacer 2 may be placed in the slit 11 in a centered or uncentered manner to achieve better antenna performance.
  • the spacer 2 can have different impedance responses to the antennas on both sides of the slit 11 to improve the degree of freedom in debugging the performance of the antenna.
  • the preset frequency selection network 3 may be combined by one or more of a capacitor, an inductor, a magnetic bead, a resistor, and a filter by series and/or parallel. And the preset frequency selection network 3 is an adjustable frequency selection network or a fixed (ie, non-adjustable) frequency selection network. The specific settings can be made according to actual needs.
  • the preset frequency selection network 3 may be a network having a specific frequency selection function that meets the requirements in combination with the experimental data.
  • the adjustable frequency selection network is a frequency selective network with adjustable parameters
  • the fixed frequency selection network is a frequency selection network with non-adjustable parameters
  • the spacer 2 may be placed in the slit 11 in a centered or uncentered manner to further optimize antenna performance.
  • the length of the grounding path of the spacer 2 is optionally smaller than the length of the shortest antenna arm 12 on both sides of the slit 11.
  • the width of the slit 11 is less than or equal to 100 mm; the total thickness of all the spacers 2 in the slit 11 is less than or equal to 50 mm.
  • the cross-sectional area of the spacer 2 may be smaller than the cross-sectional area of the metal structure on both sides of the slit 11 so that the spacer 2 is not covered by the non-metallic material in the slit 11.
  • all of the conductive structures described herein, such as spacers, may be made of a metal material (but are not limited thereto).
  • the multi-antenna structure of the terminal in the embodiment of the present disclosure utilizes a relatively simple, mature, stable, and low-cost design implementation scheme, which reduces the mutual coupling between multiple antennas on both sides of the fracture 11 and improves the inter-connectivity between the multiple antennas. Isolation optimizes antenna performance.
  • the above-mentioned spacer 2 is reconnected to the ground through an adjustable or fixed frequency selection network, etc., and a different impedance load environment is generated for the antennas on both sides of the fracture 11 to serve as antennas on both sides of the fracture 11 ( Especially for the isolation antenna 2 for multi-antennas with the same frequency or working frequency, and reducing the mutual coupling between the multiple antennas of the fracture 11 and improving the isolation, the antenna performance is improved. And by further adjusting the position of the spacer 2 in the slit 11, the antenna performance can be optimized again. Moreover, the solution of the present disclosure may have a greater chance of achieving better multi-antenna performance without significantly increasing the width of the appearance slit 11 and thus maintaining a better overall product competitiveness and user experience.
  • the spirit of the present disclosure is directed to multiple antennas (not limited to the metal ring and the broken joint on the metal shell, as long as it is applicable between multiple antennas, that is, it can also be used for the non-metallic material shape and the multi-antenna structure in the contour.
  • the spacer 2 for isolation between the antennas achieves better overall product competitiveness and user experience, so the scope of protection includes, but is not limited to, the above-described embodiments, structural shapes, forms, sizes, positions and numbers thereof.
  • a mobile terminal comprising: the terminal multi-antenna structure as described in the above embodiments.
  • implementation embodiments of the foregoing terminal multi-antenna structure are applicable to the embodiment of the mobile terminal, and the same technical effects can be achieved.
  • the mobile terminal of the present disclosure may be, for example, a computer, a tablet computer, a personal digital assistant (PDA), or a vehicle-mounted computer.
  • PDA personal digital assistant

Landscapes

  • Support Of Aerials (AREA)
  • Telephone Set Structure (AREA)

Abstract

L'invention concerne une structure de terminal multi-antenne et un terminal mobile. La structure de terminal multi-antenne comprend : une partie métallique, qui comprend au moins un joint de rupture, des structures métalliques sur les deux côtés du joint de rupture correspondant respectivement à au moins un bras d'antenne; une feuille d'isolation est disposée dans le joint de rupture et utilisée pour isoler les bras d'antenne au niveau des deux côtés, la feuille d'isolation est électroconductrice, et la feuille d'isolation est mise à la terre par l'intermédiaire d'un réseau sélectif en fréquence prédéfini.
PCT/CN2018/084251 2017-05-31 2018-04-24 Structure de terminal multi-antenne et terminal mobile WO2018219070A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710401380.3A CN107257022B (zh) 2017-05-31 2017-05-31 一种终端多天线结构及移动终端
CN201710401380.3 2017-05-31

Publications (1)

Publication Number Publication Date
WO2018219070A1 true WO2018219070A1 (fr) 2018-12-06

Family

ID=60027753

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/084251 WO2018219070A1 (fr) 2017-05-31 2018-04-24 Structure de terminal multi-antenne et terminal mobile

Country Status (2)

Country Link
CN (1) CN107257022B (fr)
WO (1) WO2018219070A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4016728A1 (fr) * 2020-12-21 2022-06-22 INTEL Corporation Ensemble antenne à réseau d'isolation
US20220200165A1 (en) * 2020-12-18 2022-06-23 Intel Corporation Integrated Combo Slot Antennas in Full Metal Chassis and Isolation Improvement Technique

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106887678A (zh) * 2017-03-28 2017-06-23 维沃移动通信有限公司 一种移动终端天线及移动终端
CN107257022B (zh) * 2017-05-31 2019-11-15 维沃移动通信有限公司 一种终端多天线结构及移动终端
CN107275760B (zh) * 2017-05-31 2019-09-27 维沃移动通信有限公司 一种终端多天线结构及移动终端
CN209071599U (zh) * 2018-12-28 2019-07-05 深圳市泰衡诺科技有限公司 天线结构及移动终端
CN113224503B (zh) * 2020-01-21 2023-08-04 荣耀终端有限公司 一种天线及终端设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070069960A1 (en) * 2005-09-27 2007-03-29 Samsung Electronics Co., Ltd. Flat-plate MIMO array antenna with isolation element
US20080094282A1 (en) * 2006-10-20 2008-04-24 Hon Hai Precision Industry Co., Ltd. Multiple input multiple output antenna
US20130076579A1 (en) * 2011-09-28 2013-03-28 Shuai Zhang Multi-Band Wireless Terminals With Multiple Antennas Along An End Portion, And Related Multi-Band Antenna Systems
CN103368626A (zh) * 2012-04-03 2013-10-23 财团法人工业技术研究院 多频多天线系统及其通信装置
CN103401061A (zh) * 2013-08-08 2013-11-20 电子科技大学 六频段智能手机mimo天线
CN103682625A (zh) * 2012-09-18 2014-03-26 中兴通讯股份有限公司 一种多输入多输出天线及移动终端
CN104218317A (zh) * 2013-06-03 2014-12-17 中兴通讯股份有限公司 一种印刷电路板及采用多入多出天线技术的无线终端
CN107257022A (zh) * 2017-05-31 2017-10-17 维沃移动通信有限公司 一种终端多天线结构及移动终端

Family Cites Families (3)

* 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
CN104810617B (zh) * 2014-01-24 2019-09-13 南京中兴软件有限责任公司 一种天线单元及终端
CN104103888B (zh) * 2014-08-06 2016-09-21 广东欧珀移动通信有限公司 一种手机及其天线

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070069960A1 (en) * 2005-09-27 2007-03-29 Samsung Electronics Co., Ltd. Flat-plate MIMO array antenna with isolation element
US20080094282A1 (en) * 2006-10-20 2008-04-24 Hon Hai Precision Industry Co., Ltd. Multiple input multiple output antenna
US20130076579A1 (en) * 2011-09-28 2013-03-28 Shuai Zhang Multi-Band Wireless Terminals With Multiple Antennas Along An End Portion, And Related Multi-Band Antenna Systems
CN103368626A (zh) * 2012-04-03 2013-10-23 财团法人工业技术研究院 多频多天线系统及其通信装置
CN103682625A (zh) * 2012-09-18 2014-03-26 中兴通讯股份有限公司 一种多输入多输出天线及移动终端
CN104218317A (zh) * 2013-06-03 2014-12-17 中兴通讯股份有限公司 一种印刷电路板及采用多入多出天线技术的无线终端
CN103401061A (zh) * 2013-08-08 2013-11-20 电子科技大学 六频段智能手机mimo天线
CN107257022A (zh) * 2017-05-31 2017-10-17 维沃移动通信有限公司 一种终端多天线结构及移动终端

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220200165A1 (en) * 2020-12-18 2022-06-23 Intel Corporation Integrated Combo Slot Antennas in Full Metal Chassis and Isolation Improvement Technique
EP4016728A1 (fr) * 2020-12-21 2022-06-22 INTEL Corporation Ensemble antenne à réseau d'isolation

Also Published As

Publication number Publication date
CN107257022A (zh) 2017-10-17
CN107257022B (zh) 2019-11-15

Similar Documents

Publication Publication Date Title
WO2018219070A1 (fr) Structure de terminal multi-antenne et terminal mobile
WO2018219071A1 (fr) Structure multi-antenne de terminal et terminal mobile
WO2018219069A1 (fr) Structure multi-antenne de terminal et terminal mobile
WO2018219113A1 (fr) Structure de terminal multi-antenne et terminal mobile
WO2018219112A1 (fr) Structure de terminal multi-antenne et terminal mobile
US10680323B2 (en) Broadband dual-band base station antenna array with high out-of-band isolation
JP5532847B2 (ja) マルチアンテナ装置および携帯機器
CN110741506B (zh) 一种移动终端的天线及移动终端
EP3780270B1 (fr) Système d'antenne et dispositif terminal
US10483624B2 (en) Antenna system and mobile terminal
TWI624999B (zh) 天線結構及具有該天線結構的無線通訊裝置
CN102868017B (zh) 辐射装置及基于辐射装置的阵列天线
US11316263B2 (en) Radiation apparatus
US20120212389A1 (en) Multiantenna Unit and Communication Apparatus
WO2020135145A1 (fr) Structure d'antenne et terminal de communication
KR20120054084A (ko) 고절연 안테나 시스템
TWI446626B (zh) 寬頻行動通訊天線
TW201914093A (zh) 行動裝置
WO2021203939A1 (fr) Dispositif électronique
JP2012244188A (ja) マルチバンド対応のマルチアンテナ装置および通信機器
WO2015165007A1 (fr) Appareil d'antenne et terminal
WO2020103314A1 (fr) Système d'antenne mimo à large bande 5g employant une antenne cadre couplée, et terminal mobile
CN103943948B (zh) 用于入耳式无线耳机的可折叠pcb板螺旋天线
CN106299703A (zh) 无线通信装置及其天线模块
WO2022148342A1 (fr) Structure d'antenne et dispositif terminal

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18809169

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18809169

Country of ref document: EP

Kind code of ref document: A1