WO2017020425A1 - Antenne et terminal mobile - Google Patents

Antenne et terminal mobile Download PDF

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Publication number
WO2017020425A1
WO2017020425A1 PCT/CN2015/091356 CN2015091356W WO2017020425A1 WO 2017020425 A1 WO2017020425 A1 WO 2017020425A1 CN 2015091356 W CN2015091356 W CN 2015091356W WO 2017020425 A1 WO2017020425 A1 WO 2017020425A1
Authority
WO
WIPO (PCT)
Prior art keywords
mobile terminal
metal
antenna
back cover
breakpoint
Prior art date
Application number
PCT/CN2015/091356
Other languages
English (en)
Chinese (zh)
Inventor
李克
Original Assignee
宇龙计算机通信科技(深圳)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 宇龙计算机通信科技(深圳)有限公司 filed Critical 宇龙计算机通信科技(深圳)有限公司
Publication of WO2017020425A1 publication Critical patent/WO2017020425A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an antenna and a mobile terminal.
  • the metal middle frame of most mobile terminals has a plastic partition point, and only a few metal terminals of the mobile terminal are closed loop without a break point.
  • the existing mobile terminals that have been used in the frame without breakpoints often use ring or slot antennas, and do not support metal back covers, such as application number 201310472716.7 (wireless electronic device with metal perimeter including multiple antennas) And 201310126183.7 (slot antenna device and mobile terminal of mobile terminal), although satisfying the requirement of no metal break in the appearance of the middle frame, it cannot meet the requirement of the metal back cover, and only utilizes the simple realization of the slot antenna, that is,
  • the metal frame is opened at the periphery of the frame. This implementation needs to change the slot size to adjust the antenna resonance frequency, which is not flexible enough.
  • the radiation performance of the slot antenna is relatively weak, and the design of the slot in the middle frame is also strong. Will have a more obvious weakening effect.
  • the technical problem to be solved by the embodiments of the present invention is to provide an antenna and a mobile terminal. To solve the problem of mobile terminal requirements for metal design and antenna performance.
  • an antenna including:
  • a metal trace located inside the mobile terminal, connected to the closed-loop non-breakpoint metal middle frame of the mobile terminal and electrically connected, and electrically connected to a circuit board in the mobile terminal through a feeding point for adjusting the antenna Resonant frequency, wherein the circuit board is located between the structural support metal plate in the mobile terminal and the metal back cover of the mobile terminal, and the structural support metal plate is connected to the metal back cover and electrically connected.
  • the structural support metal plate and the metal back cover serve as a reference ground for the mobile terminal;
  • the closed loop non-breakpoint metal middle frame is used as a radiator of the antenna to transmit and receive signals.
  • the metal trace includes a first tuning portion for causing an operating frequency band of the antenna to cover a low frequency band, and a second tuning portion for causing the antenna
  • the working frequency band covers the high frequency band.
  • the trace length and/or width of the first tuning portion and the second tuning portion are different.
  • the metal traces included in the first tuning portion and the second tuning portion are all arranged in a loop.
  • the metal trace is disposed at a bottom of the mobile terminal that is away from a location where the earpiece is located.
  • the metal trace is made of stainless steel, copper, nickel-plated copper or gold-plated copper.
  • An embodiment of the present invention further provides a mobile terminal, including the antenna as described above.
  • the whole antenna consists of a closed-loop non-breakpoint metal middle frame and a metal trace.
  • the structure supported by the mobile terminal supports the metal plate and the metal back cover as the reference ground for the mobile terminal.
  • the closed-loop non-breakpoint metal middle frame and the structural support metal plate are physically connected. And electrically conductive, so the closed-loop non-breakpoint metal middle frame is also part of the reference ground.
  • the closed-loop non-breakpoint metal middle frame acts as the main antenna radiator, and the metal trace adjusts the resonant frequency by changing the size and shape.
  • the metal appearance design of the closed-loop non-breakpoint metal middle frame and the metal back cover is realized, and the radiation performance of the antenna is ensured, and the structural strength of the mobile terminal body is greatly improved; and the feeding structure is simple in design, and the metal wiring is passed through The adjustment can achieve flexible adjustment of the resonant frequency.
  • FIG. 1 is a perspective view of an antenna structure of the present invention
  • Figure 2 is a plan view showing the structure of the antenna of the present invention.
  • Figure 3 is a graph showing the results of a return loss test using the antenna of the present invention.
  • the antenna includes:
  • the metal trace 100 is located inside the mobile terminal, is connected to the closed loop non-breakpoint metal middle frame 200 of the mobile terminal, and is electrically connected, and is electrically connected to the circuit board in the mobile terminal through a feeding point (not shown in FIG. 1). a connection for adjusting a resonant frequency of the antenna, wherein the circuit board is located between the structural support metal plate 300 in the mobile terminal and the metal back cover 400 of the mobile terminal, and the structure supports the metal plate 300 Connecting and electrically conducting with the metal back cover 400, the structure supporting the metal plate 300 and the metal back cover 400 as a reference ground of the mobile terminal; the metal back cover 400 may cover the back of some or all of the mobile terminals .
  • the closed loop non-breakpoint metal middle frame 200 is used to transmit and receive signals as a radiator of the antenna.
  • the mobile terminal may be a smart phone or a tablet computer with a communication function.
  • the metal trace 100 can be divided into two tuning sections, and the shape and size of the metal trace 100 can be adjusted to cover a plurality of frequency bands, such as low frequency 1, low frequency 2, low frequency 3, and high frequency 1. High frequency 2 and high frequency 3, etc.
  • frequency bands such as low frequency 1, low frequency 2, low frequency 3, and high frequency 1.
  • the metal traces included in each of the tuning portions may be arranged in a loop. Therefore, the internal space of the mobile terminal can be fully saved, and the loop can be set as a loop, or can be set as a curved loop. Of course, it can also be set to other shapes, such as a long strip, a triangle, etc., and it is only necessary to ensure that coverage of different frequency bands can be achieved within a certain space.
  • the size of the tuning portion specifically, the length and the width may be included, and the shape and size of the tuning portion may be adjusted to cover the band to be covered. In order to meet the performance requirements of various network standards of mobile terminals in the future, the specific settings of the shape and size of the tuning unit can be tested and tested. This makes it possible to adjust the resonant frequency very flexibly.
  • the metal trace 100 is disposed at a bottom of the mobile terminal that is away from a location where the earpiece is located. It should be noted that the bottom here refers to the user facing the ground when the mobile terminal is normally held. One end, and the earpiece is generally placed on top of the mobile terminal.
  • the metal trace is designed at the bottom of the mobile terminal in this embodiment
  • the current distribution of the user's hand-held part on the two sides of the closed-loop non-breakpoint metal middle frame 200 is less, so the current loss is small when the user holds the mobile terminal, and the influence on the antenna performance is less; similarly, since the antenna is located at the bottom, the user When the mobile terminal picks up or makes a call, the part that sticks to the human ear is the top of the mobile terminal, and the bottom of the current distribution is small, so the hand loss of the mobile terminal using the antenna according to the embodiment of the present invention is
  • the loss of the signal and the head loss (the loss of the head signal to the antenna when the ear is on the phone) are relatively small, and the losses of the left and right hands and the left and right heads are relatively balanced, which can well meet the ever-increasing demand for the antenna performance of the mobile terminal. .
  • the material of the metal trace 100 may include, but is not limited to, stainless steel, copper, nickel-plated copper or gold-plated copper.
  • the antenna includes:
  • the metal trace 100 is located inside the mobile terminal, is connected to the closed loop non-breakpoint metal middle frame 200 of the mobile terminal, and is electrically connected, and is electrically connected to the circuit board in the mobile terminal through the feeding point 104 for adjustment.
  • a resonant frequency of the antenna wherein the circuit board is located between a structural support metal plate in the mobile terminal and a metal back cover of the mobile terminal, and the structural support metal plate is connected to the metal back cover Conductively conducting, the structural support metal plate and the metal back cover as a reference ground of the mobile terminal;
  • the closed loop non-breakpoint metal middle frame 200 is used to transmit and receive signals as a radiator of the antenna.
  • the metal trace 100 may include a first tuner section 101 and a second tuner section 102, the first tuner section 101 is configured to cover an operating frequency band of the antenna to cover a low frequency band, and the second tuner section 102 It is used to make the working frequency band of the antenna cover a high frequency band.
  • the metal traces included in the first tuning portion 101 and the second tuning portion 102 are all arranged in a loop.
  • the trace length and/or width of the first tuning portion 101 and the second tuning portion 102 may be different when the resonant frequency is adjusted to cover the high frequency and the low frequency. Or you can resonate by the shape of both The frequency adjustment, of course, can also adjust the size and shape of both.
  • the first tuner section 101 and the second tuner section 102 are respectively connected to the closed loop non-breakpoint metal middle frame 200 through the connection point 103.
  • the feed point 104 is disposed on the second tuning portion 102 and is connected to the circuit board of the mobile terminal through a feeder.
  • the metal trace 100 is disposed at a bottom of the mobile terminal that is away from a location where the earpiece is located.
  • the entire antenna is composed of a closed-loop non-breakpoint metal middle frame 200 and a metal trace 100.
  • the closed-loop non-breakpoint metal middle frame 200 serves as a main antenna radiator, and the metal trace 100 is adjusted by changing the size and shape. Resonant frequency.
  • the structural support metal plate 300 and the metal back cover 400 built in the mobile terminal serve as a reference ground for the mobile terminal, and the closed-loop non-breakpoint metal middle frame 200 and the structural support metal plate are physically connected and electrically connected, so the closed-loop non-breakpoint metal middle frame 200 is also a part of the reference ground.
  • the working principle of the antenna is the ground radiation theory (the present invention proposes a new radiation theory), that is, using a partial reference ground (closed-loop non-breakpoint metal middle frame 200) as the main radiator of the antenna,
  • the antenna resonant frequency is adjusted using metal traces 100.
  • the metal appearance design of the closed-loop non-breakpoint metal middle frame and the metal cover is realized, and the radiation performance of the antenna is ensured, and the structural strength of the mobile terminal body is greatly improved; and the feeding structure is simple in design, and the metal wiring is passed through
  • the adjustment can achieve flexible adjustment of the resonant frequency; the metal trace is placed at the bottom of the mobile terminal, which can reduce the hand loss and head loss of the mobile terminal, and the hand loss of the left and right hands is relatively balanced.
  • the return loss test can be performed on the mobile terminal using the antenna described in this embodiment.
  • FIG. 3 is a schematic diagram showing the results of return loss testing using the antenna of the present invention.
  • Return loss is a parameter indicating the reflection performance of a signal. Return loss indicates that a portion of the incident power is reflected back to the source. For example, if 1mW (0dBm) of power is injected into the amplifier, 10% of which is reflected (bounced back), the return loss is 10dB. From a mathematical point of view, the return loss is -10 lg [(reflected power) / (incident power)]. Return loss is usually specified on both the input and output. Although it is called loss, the larger the value, the better the performance.
  • the abscissa is the frequency and the ordinate is the return loss.
  • the absolute value of the return loss is about 10 or more. The performance is better, which can fully meet the requirements of the antenna performance of the mobile terminal.
  • each embodiment in the present specification is described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and the same similar parts between the various embodiments. You can refer to each other.
  • the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.
  • the present invention has the following advantages:
  • the whole antenna consists of a closed-loop non-breakpoint metal middle frame and a metal trace.
  • the structure supported by the mobile terminal supports the metal plate and the metal back cover as the reference ground for the mobile terminal.
  • the closed-loop non-breakpoint metal middle frame and the structural support metal plate are physically connected. And electrically conductive, so the closed-loop non-breakpoint metal middle frame is also part of the reference ground.
  • the closed-loop non-breakpoint metal middle frame acts as the main antenna radiator, and the metal trace adjusts the resonant frequency by changing the size and shape.
  • the metal appearance design of the closed-loop non-breakpoint metal middle frame and the metal back cover is realized, and the radiation performance of the antenna is ensured, and the structural strength of the mobile terminal body is greatly improved; and the feeding structure is simple in design, and the metal wiring is passed through
  • the adjustment can achieve flexible adjustment of the resonant frequency; the metal trace is placed at the bottom of the mobile terminal, which can reduce the hand loss and head loss of the mobile terminal, and the hand loss of the left and right hands is relatively balanced.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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

Abstract

Un mode de réalisation de l'invention concerne une antenne et un terminal mobile. L'antenne comprend : une trace métallique configurée pour régler une fréquence de résonance de l'antenne, située à l'intérieur d'un terminal mobile, reliée à un cadre central métallique en boucle fermée du terminal mobile n'ayant pas de point d'arrêt et connectée électriquement à celui-ci, et connectée électriquement, par l'intermédiaire d'un point d'alimentation électrique, à une carte de circuit dans le terminal mobile, la carte de circuit étant située entre une plaque de support de structure métallique dans le terminal mobile et un couvercle arrière métallique du terminal mobile, la plaque de support de structure métallique étant reliée au couvercle arrière métallique et connectée électriquement à celui-ci. La plaque de support de structure métallique et le couvercle arrière métallique servent de masses de référence du terminal mobile. Le cadre central métallique en boucle fermée n'ayant pas de point d'arrêt sert d'élément rayonnant de l'antenne pour émettre et recevoir des signaux. L'invention permet à un terminal mobile d'utiliser un cadre central métallique en boucle fermée n'ayant pas de point d'arrêt et un couvercle arrière métallique, ce qui permet d'assurer l'efficacité de rayonnement d'une antenne.
PCT/CN2015/091356 2015-07-31 2015-09-30 Antenne et terminal mobile WO2017020425A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510466799.8A CN105552516B (zh) 2015-07-31 2015-07-31 一种天线及移动终端
CN201510466799.8 2015-07-31

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WO2017020425A1 true WO2017020425A1 (fr) 2017-02-09

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WO (1) WO2017020425A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109411882A (zh) * 2018-11-19 2019-03-01 惠州硕贝德无线科技股份有限公司 一种用于5g金属边框手机终端的双频天线结构
CN112072304A (zh) * 2020-10-20 2020-12-11 北京字节跳动网络技术有限公司 终端
CN112526226A (zh) * 2020-11-17 2021-03-19 惠州Tcl移动通信有限公司 检测电池盖金属镀层对天线性能的影响的方法和系统

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* Cited by examiner, † Cited by third party
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CN105680152B (zh) * 2016-03-11 2019-03-01 北京小米移动软件有限公司 终端背盖及其移动终端
CN114006960B (zh) * 2020-07-28 2023-04-28 华为技术有限公司 电子设备

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CN105305065A (zh) * 2015-09-28 2016-02-03 宇龙计算机通信科技(深圳)有限公司 一种移动终端

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CN103606736B (zh) * 2013-09-18 2016-06-08 上海安费诺永亿通讯电子有限公司 一种全金属边框的新型lte天线
CN104064855A (zh) * 2014-05-27 2014-09-24 普尔思（苏州）无线通讯产品有限公司 一种无缝金属环手机lte-4g天线

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Publication number Priority date Publication date Assignee Title
CN1513218A (zh) * 2001-05-29 2004-07-14 �Ҵ���˾ 应用于膝上型计算机的集成天线
CN201766163U (zh) * 2010-08-03 2011-03-16 中兴通讯股份有限公司 一种内置天线及移动终端
CN102956954A (zh) * 2011-08-17 2013-03-06 联想(北京)有限公司 天线装置和终端设备
CN103682620A (zh) * 2012-09-25 2014-03-26 宏达国际电子股份有限公司 移动装置
US20140354487A1 (en) * 2013-05-31 2014-12-04 Chiun Mai Communication Systems, Inc. Antenna assembly integral with metal housing and electronic device using the antenna assembly
CN203434270U (zh) * 2013-09-13 2014-02-12 广东欧珀移动通信有限公司 一种耦合馈入式移动终端天线装置
CN104701619A (zh) * 2014-12-31 2015-06-10 东莞劲胜精密组件股份有限公司 一种环形回路闭合金属环天线及移动设备
CN105305065A (zh) * 2015-09-28 2016-02-03 宇龙计算机通信科技(深圳)有限公司 一种移动终端

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109411882A (zh) * 2018-11-19 2019-03-01 惠州硕贝德无线科技股份有限公司 一种用于5g金属边框手机终端的双频天线结构
CN109411882B (zh) * 2018-11-19 2024-03-12 惠州硕贝德无线科技股份有限公司 一种用于5g金属边框手机终端的双频天线结构
CN112072304A (zh) * 2020-10-20 2020-12-11 北京字节跳动网络技术有限公司 终端
CN112526226A (zh) * 2020-11-17 2021-03-19 惠州Tcl移动通信有限公司 检测电池盖金属镀层对天线性能的影响的方法和系统

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CN105552516A (zh) 2016-05-04
CN105552516B (zh) 2019-03-22

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