WO2018219113A1 - Structure de terminal multi-antenne et terminal mobile - Google Patents

Structure de terminal multi-antenne et terminal mobile Download PDF

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Publication number
WO2018219113A1
WO2018219113A1 PCT/CN2018/086320 CN2018086320W WO2018219113A1 WO 2018219113 A1 WO2018219113 A1 WO 2018219113A1 CN 2018086320 W CN2018086320 W CN 2018086320W WO 2018219113 A1 WO2018219113 A1 WO 2018219113A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
frequency selection
selection network
slit
spacers
Prior art date
Application number
PCT/CN2018/086320
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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 WO2018219113A1 publication Critical patent/WO2018219113A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—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.
  • the technical problem to be solved by the present disclosure is to provide an antenna structure and a mobile terminal to solve the difference in isolation between multiple antennas of a mobile terminal in the related art, which limits the degree of freedom in antenna design and antenna performance, and affects the design of the product.
  • the problem is to provide an antenna structure and a mobile terminal to solve the difference in isolation between multiple antennas of a mobile terminal in the related art, which limits the degree of freedom in antenna design and antenna performance, and affects the design of the product.
  • FIG. 1 is a schematic diagram of a multi-antenna structure of a conventional terminal
  • FIG. 3 is a schematic diagram of a specific implementation of a multi-antenna structure of a terminal according to the present disclosure
  • FIG. 4 is another schematic diagram of a multi-antenna structure of the terminal of the present disclosure.
  • FIG. 6 is another schematic diagram of a multi-antenna structure of the terminal of the present disclosure.
  • a terminal multi-antenna structure comprising: a metal portion 1 having at least one slit 11 disposed thereon, the fracture
  • the metal structures on both sides of the 11 respectively correspond to at least one antenna arm 12;
  • the slit 11 is provided with at least one spacer 2 for isolating the two antenna arms 12, and the spacer 2 has electrical conductivity;
  • the antenna arm 12 is electrically connected to the spacer 2 closest to the antenna arm 12 through a preset frequency selection network 3, and at least one of the spacers 2 is selected by a preset frequency selection network. 3 grounded.
  • 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 invention solves the problem of poor isolation between multiple antennas of the mobile terminal in the related art, and limits the degree of freedom in antenna design and antenna performance, and the design of the product is affected.
  • the two adjacent spacers 2 are electrically connected through the preset frequency selection network 3, so that the better isolation between the multi-antennas at the same frequency or near the operating frequency is improved, and the same frequency or the operating frequency is improved.
  • the spacer 2 is inserted in the slit 11 between the multiple antennas, and the spacer 2 is grounded through the preset frequency selection network 3, that is, a spacer having frequency selectivity is inserted in the slit 11 between the multiple antennas. 2.
  • the spacer 2 can have different impedance responses to the antennas on both sides of the fracture 11, thereby improving the isolation between the multiple antennas and improving the degree of freedom in debugging the antenna performance.
  • the spacer 2 can be disposed in the slit 11 in a centered or not centered manner, thereby achieving better antenna performance.
  • the spacer 2 by adding the spacer 2 to the slit 11 between the antennas, the mutual coupling between the multiple antennas on both sides of the slit 11 is reduced, the isolation between the multiple antennas is improved, and the antenna performance is optimized. Moreover, 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. Moreover, the low frequency performance is improved, and the spacer 2 can have different impedance responses to the antennas on both sides of the fracture 11 to improve the degree of freedom in antenna performance debugging.
  • two slits 2 are disposed in the slit 11 and two The isolation sheets 2 are electrically connected to each other through the preset frequency selection network 3, and then grounded through the preset frequency selection network 3, and each of the antenna arms 12 passes through the spacer 2 closest to the antenna arm 12.
  • the preset frequency selects the network 3 electrical connection.
  • the spacer 2 by inserting two spacers 2 in the slit 11 between the multiple antennas, and causing the spacer 2 to be grounded through the preset frequency selection network 3, that is, a frequency selective is inserted in the slit 11 between the multiple antennas.
  • the spacer 2 at this time, the spacer 2 can have different impedance responses to the antennas on both sides of the slit 11, thereby improving the isolation between the multiple antennas and improving the degree of freedom in debugging the antenna performance.
  • the two spacers 2 are connected through a preset frequency selection network 3 and then grounded.
  • 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 optimization of the spacer 2 can be performed, that is, the two spacers 2 as a whole (but not limited thereto) can be disposed in the fracture 11 in a centered manner. It can also be placed in the slit 11 in a non-centered manner to achieve better antenna performance.
  • the metal portion 1 in which the antenna arm 12 and the slit 11 are disposed may be the top or bottom of the metal middle frame (but is not limited thereto).
  • Two slits 11 may be arranged at the top or bottom of the metal middle frame to break the metal middle frame into three metal structures, 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 spacer 2 located in the middle is grounded through the preset frequency selection network 3.
  • the predetermined frequency selection network 3 is electrically connected to different antenna arms 12 on both sides of the slit 11 to realize frequency division filtering, and the path of the low frequency current is extended by frequency division filtering (because the required current path and the operating frequency are Reverse correlation) improves the performance of low-frequency functions, such as (but not limited to) the performance of the 13.56MHz NFC function, and reduces the impact on other antennas.
  • the preset frequency selection network 3 of the ground also plays the role of not allowing the low-frequency current path to be directly connected to the ground, so that the low-frequency performance is further improved.
  • the position optimization of the spacer 2 can be performed, that is, the three spacers 2 as a whole (but not limited thereto) can be disposed in the fracture 11 in a centered manner. It can also be placed in the slit 11 in a non-centered manner to achieve better antenna performance.
  • the three spacers 2 may be adjusted as a whole (but not limited thereto) to deviate from the side antenna, that is, to present an open state to the other side.
  • the antennas are close to reduce the effect on the performance of the side antenna due to the presence of a short circuit condition.
  • this method can often reduce the need to increase the breaking width of the slit 11 to ensure the appearance effect and have better antenna performance.
  • the three spacers can be disposed in the slit in a centered or uncentered manner as a whole (but not limited to) to achieve better antenna performance.
  • the preset frequency selection network 3 may be a network having a specific frequency selection function that meets the requirements obtained by combining the experimental data.
  • 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. Millimeter.
  • 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 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. Inserting one or more (more than one) of the above-mentioned spacers 2, and selecting the frequency by (adjustable or fixed) inductor/capacitor/bead/resistor/filter or its series/parallel mixing The network is connected to the ground and connected to the ground as a spacer 2 for isolation between multiple antennas to achieve better overall product competitiveness and user experience.
  • a mobile terminal comprising: the terminal multi-antenna structure as described in the above embodiments.

Abstract

L'invention concerne une structure de terminal multi-antenne et un terminal mobile. La structure de terminal multi-antenne comprend une partie métallique comprenant au moins un joint de rupture, les structures métalliques sur les deux côtés du joint de rupture étant respectivement correspondantes à au moins un bras d'antenne; et au moins une plaque d'isolation qui est disposée dans le joint de rupture, la plaque d'isolation étant électroconductrice. Chaque bras d'antenne et la plaque d'isolation la plus proche du bras d'antenne sont électroconnectés par l'intermédiaire d'un réseau sélectif en fréquence prédéfini, et au moins une plaque d'isolation dans le joint de rupture est mise à la terre par l'intermédiaire du réseau sélectif en fréquence prédéfini.
PCT/CN2018/086320 2017-05-31 2018-05-10 Structure de terminal multi-antenne et terminal mobile WO2018219113A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710399526.5 2017-05-31
CN201710399526.5A CN107257016A (zh) 2017-05-31 2017-05-31 一种终端多天线结构及移动终端

Publications (1)

Publication Number Publication Date
WO2018219113A1 true WO2018219113A1 (fr) 2018-12-06

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PCT/CN2018/086320 WO2018219113A1 (fr) 2017-05-31 2018-05-10 Structure de terminal multi-antenne et terminal mobile

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CN (1) CN107257016A (fr)
WO (1) WO2018219113A1 (fr)

Cited By (1)

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US11876306B2 (en) 2021-06-22 2024-01-16 Microsoft Technology Licensing, Llc Chassis antenna

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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
CN107257016A (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
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
CN113013620B (zh) * 2021-02-25 2023-01-10 北京有竹居网络技术有限公司 天线及终端
CN115621730A (zh) * 2021-07-16 2023-01-17 华为技术有限公司 天线结构及电子设备

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US20100295740A1 (en) * 2009-05-22 2010-11-25 Fujitsu Limited Antenna device and wireless communication device
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