WO2020024674A1 - 回路天线系统及移动终端 - Google Patents

回路天线系统及移动终端 Download PDF

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Publication number
WO2020024674A1
WO2020024674A1 PCT/CN2019/088236 CN2019088236W WO2020024674A1 WO 2020024674 A1 WO2020024674 A1 WO 2020024674A1 CN 2019088236 W CN2019088236 W CN 2019088236W WO 2020024674 A1 WO2020024674 A1 WO 2020024674A1
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WIPO (PCT)
Prior art keywords
loop
antenna system
loop antenna
connecting member
radiation unit
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PCT/CN2019/088236
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English (en)
French (fr)
Inventor
刘锋
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瑞声声学科技(深圳)有限公司
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Publication of WO2020024674A1 publication Critical patent/WO2020024674A1/zh

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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
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • 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
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • 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
    • 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

  • the present invention relates to the technical field of antennas, and in particular, to a loop antenna system and a mobile terminal.
  • the object of the present invention is to provide a loop antenna system, which can realize the connection of various parts of the antenna without being restricted by the structure of the client.
  • a loop antenna system includes a back cover, a main board housed in the back cover, a plastic back shell fixed to the main board and located between the back cover and the main board, and The earphone holder provided on the main board, the loop antenna system includes a loop antenna provided on a surface of the plastic back shell directly opposite the back cover, and the loop antenna includes two A first loop radiating unit and a second loop radiating unit, and a connecting member provided across the earphone holder and connecting the first loop radiating unit and the second loop radiating unit, A ground feeding point is provided, and the second loop radiation unit is provided with a feeding point electrically connected to an antenna feeding circuit on the main board, and the main board is provided with a connection to the feeding point corresponding to the feeding point.
  • the grounding switch, the connecting member is fixed on the back cover and the opposite ends of the connecting member respectively abut the first loop radiation unit and the second loop radiation unit.
  • the feeding point is provided at an end of the second loop radiating unit remote from the connecting member, and the feeding point is provided at an end of the first loop radiating unit remote from the connecting member.
  • the first loop radiation unit and the second loop radiation unit are both semi-closed structures with openings, and the opening of the first loop radiation unit is opposite to the opening of the second loop radiation unit.
  • the working frequency band of the loop antenna is 700-960MHz and 1710-2690MHz.
  • opposite ends of the connecting member elastically abut the first loop radiation unit and the second loop radiation unit, respectively.
  • the first loop radiation unit and the second loop radiation unit are disposed on the plastic back shell using a LDS technology molding process.
  • the connecting member is provided with a buckle hole
  • the position of the rear cover corresponding to the connecting member is provided with a convex post that cooperates with the buckle hole, and the convex post cooperates with the buckle hole so that The connecting member is fixed on the back cover.
  • the invention also provides a mobile terminal including the loop antenna system.
  • a loop antenna system provided by the present invention has the following beneficial effects: by providing a connector on the top of the earphone holder, the traditional machine structure can solve the problem that the bracket of the shaped antenna cannot be installed on the earphone holder due to the thickness limitation. This further affects the performance of the antenna and eliminates the limitations of the earphone holder on the antenna layout.
  • FIG. 1 is an exploded perspective view of a loop antenna system according to the present invention
  • FIG. 2 is a perspective structural view of a loop antenna system of the present invention
  • FIG. 3 is a perspective structural view of a loop antenna of the loop antenna system of the present invention.
  • FIG. 4 is a structural diagram of a back cover and a connecting member in the loop antenna system of the present invention.
  • FIG. 5 is a return loss diagram of a loop antenna system of the present invention.
  • FIG. 6 is an antenna efficiency diagram of the loop antenna system of the present invention.
  • an embodiment of the present invention provides a loop antenna system 100 including a rear cover 1, a main board 2 housed in the rear cover 1, and a main board 2 fixed to the main board 2 and located on the rear cover.
  • the side wall of the back cover 1 is provided with a jack 10 for inserting a headphone plug, and a position of the motherboard 2 corresponding to the jack 10 is provided with a headphone holder 20 for inserting the headphone plug, and the plastic back shell 3 Positions corresponding to the headphone holder 20 corresponding to the loop antenna 4 are provided with space for giving.
  • the working frequency band of the loop antenna 4 is 700-960 MHz and 1710-2690 MHz, and specifically includes a first loop radiating unit 41, a second loop radiating unit 42 and two
  • the connecting member 43 is located between the first loop radiation unit 41 and the second loop radiation unit 42.
  • the ground loop feed point 410 is provided on the first loop radiation unit 41 and the second loop radiation unit 42.
  • a feeding point 420 is provided on the main board 2 for electrical connection with the antenna feeding circuit.
  • the first loop radiation unit 41 and the second loop radiation unit 42 are both semi-closed structures having an opening, and the opening of the first loop radiation unit 41 and the first loop radiation unit 41 The openings of the secondary circuit radiation unit 42 are opposite to each other.
  • the first loop radiation unit 41 and the second loop radiation unit 42 are disposed on the plastic back shell 4 by using an LDS technology molding process.
  • the connecting member 43 is fixed on the rear cover 1 and the two opposite ends of the connecting member 43 abut the first loop radiation unit 41 and the second loop radiation unit 42 respectively, which is a preferred embodiment of the present invention. In an embodiment, opposite ends of the connecting member 43 elastically abut the first loop radiation unit 41 and the second loop radiation unit 42, respectively.
  • the connecting member 43 is disposed above the earphone holder 20, thereby eliminating the limitation on the antenna layout of the earphone holder 20.
  • the feeding point 420 is provided at an end of the second loop radiating unit 42 remote from the connecting member 43, and the feeding point 410 is provided at the first loop radiating unit 41. Away from the end of the connecting member 43.
  • the connecting member 43 is provided with a buckle hole 430, and a position of the rear cover 1 corresponding to the connecting member 43 is provided with a convex post 11 that cooperates with the buckle 430.
  • the column 11 cooperates with the buckle hole 430 so that the connecting member 43 is fixed to the rear cover 1.
  • the convex member 11 is hot-melted so that the connecting member 43 is firmly fixed to the rear cover. 1.
  • a grounding switch (not shown) connected to the feeding point 420 is provided on the motherboard 2 corresponding to the feeding point 420.
  • other electronic components such as speakers, microphones, and USBs are installed on the motherboard 2. Interface, motor, etc.
  • the FM switch is used to adjust the antenna frequency offset. As shown in FIG. 5, the ground switch adjusts four frequency bands. As shown in FIG. 6, the working frequency band of the loop antenna 4 is 700-960MHz and 1710. At -2690MHz, the antenna efficiency meets the requirements for antenna performance.
  • the present invention also provides a mobile terminal, which further includes the loop antenna system 100 described above.
  • a loop antenna system provided by the present invention has the following beneficial effects: by providing a connector on the top of the earphone holder, the traditional machine structure can solve the problem that the bracket of the shaped antenna cannot be installed on the earphone holder due to the thickness limitation. This further affects the performance of the antenna and eliminates the limitations of the earphone holder on the antenna layout.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Telephone Set Structure (AREA)
  • Details Of Aerials (AREA)

Abstract

本发明提供了一种回路天线系统，包括后盖、主板以及塑料背壳，所述回路天线系统包括回路天线，所述回路天线包括第一回路辐射单元、第二回路辐射单元以及连接所述第一回路辐射单元和所述第二回路辐射单元的连接件。与相关技术相比，本发明提供的一种回路天线系统具有如下有益效果：通过在耳机座的上方设置连接件，解决了传统整机结构因厚度限制而导致耳机座上方无法设置支架进而影响天线性能的问题，消除了耳机座对天线布局的局限。

Description

回路天线系统及移动终端 技术领域
本发明涉及天线技术领域，尤其涉及一种回路天线系统及移动终端。
 背景技术
随着通讯技术的不断发展，人们对移动终端的需求越来越多样化，因此，对移动终端内的天线的要求也越来越高。
目前，移动终端，例如手机，由于整体结构受整体厚度的制约，导致耳机孔的上方无法安装成型天线的支架，从而使得一些结构的天线无法安装，若将成型天线的支架往内侧移动，天线性能会降低。
因此，有必要提供一种新型的回路天线系统以解决上述问题。
 技术问题
本发明的目的在于提供一种回路天线系统，其能在不受客户端的结构限制，能实现天线各部分的连接。
 技术解决方案
本发明的技术方案如下：一种回路天线系统，包括后盖、收容于所述后盖内的主板、固设于所述主板并位于所述后盖与所述主板之间的塑料背壳以及设于所述主板上的耳机座，所述回路天线系统包括设置于所述塑料背壳正对所述后盖的表面上的回路天线，所述回路天线包括分设于所述耳机座两侧的第一回路辐射单元和第二回路辐射单元以及跨设于所述耳机座之上并连接所述第一回路辐射单元和所述第二回路辐射单元的连接件，所述第一回路辐射单元上设有接地的馈地点，所述第二回路辐射单元上设有与所述主板上的天线馈电电路电连接的馈电点，所述主板对应所述馈地点设有与所述馈地点连接的接地开关，所述连接件固设于所述后盖且所述连接件的相对两端分别抵接所述第一回路辐射单元和所述第二回路辐射单元。
优选的，所述馈电点设于所述第二回路辐射单元的远离所述连接件的末端，所述馈地点设于所述第一回路辐射单元的远离所述连接件的末端。
优选的，所述第一回路辐射单元和所述第二回路辐射单元均为具有开口的半封闭结构，且所述第一回路辐射单元的开口与所述第二回路辐射单元的开口相对。
优选的，所述回路天线的工作频段为700-960MHz和1710-2690MHz。
优选的，所述连接件的相对两端分别弹性抵接所述第一回路辐射单元和所述第二回路辐射单元。
优选的，所述第一回路辐射单元和所述第二回路辐射单元采用LDS技术成型工艺设置于所述塑料背壳。
优选的，所述连接件设有卡扣孔，所述后盖对应所述连接件的位置设有于所述卡扣孔配合的凸柱，通过所述凸柱与所述卡扣孔配合使得所述连接件固设于所述后盖。
本发明还提供了一种移动终端，包括所述的回路天线系统。
 有益效果
与相关技术相比，本发明提供的一种回路天线系统具有如下有益效果：通过在耳机座的上方设置连接件，解决了传统整机结构因厚度限制而导致耳机座上方无法设置成型天线的支架进而影响天线性能的问题，消除了耳机座对天线布局的局限。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本发明回路天线系统的立体分解图；
图2为本发明回路天线系统的立体结构图；
图3为本发明回路天线系统的回路天线的立体结构图；
图4为本发明回路天线系统中后盖与连接件的结构图；
图5为本发明回路天线系统的回波损耗图；
图6为本发明回路天线系统的天线效率图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
请参阅图1和2，本发明实施例提供了一种回路天线系统100，包括后盖1、收容于所述后盖1内的主板2、固设于所述主板2并位于所述后盖1与所述主板2之间的塑料背壳3以及设置于所述塑料背壳3上的回路天线4。所述后盖1的侧壁上设有用于耳机插头插入的插孔10，所述主板2对应所述插孔10的位置设有用于插入该耳机插头的耳机座20，所述塑料背壳3和所述回路天线4对应所述耳机座20的位置均设有让位空间。
再结合图3所示，所述回路天线4的工作频段为700-960MHz和1710-2690MHz，具体包括分设于所述耳机座20两侧的第一回路辐射单元41、第二回路辐射单元42以及位于所述第一回路辐射单元41和所述第二回路辐射单元42之间的连接件43，所述第一回路辐射单元41上设有接地的馈地点410，所述第二回路辐射单元42上设有与所述主板2上的天线馈电电路电连接的馈电点420。
在本发明优选的实施方式中，所述第一回路辐射单元41和所述第二回路辐射单元42均为具有开口的半封闭结构，且所述第一回路辐射单元41的开口与所述第二回路辐射单元42的开口相对。在本发明优选的实施方式中，所述第一回路辐射单元41和所述第二回路辐射单元42采用LDS技术成型工艺设置于所述塑料背壳4。
所述连接件43固设于所述后盖1且所述连接件43的相对两端分别抵接所述第一回路辐射单元41和所述第二回路辐射单元42，在本发明的优选实施方式中，所述连接件43的相对两端分别弹性抵接所述第一回路辐射单元41和所述第二回路辐射单元42。所述连接件43跨设于所述耳机座20的上方，从而消除了所述耳机座20对天线布局的局限。
在本发明优选的实施方式中，所述馈电点420设于所述第二回路辐射单元42的远离所述连接件43的末端，所述馈地点410设于所述第一回路辐射单元41的远离所述连接件43的末端。
再结合图4所示，所述连接件43设有卡扣孔430，所述后盖1对应所述连接件43的位置设有与所述卡扣430配合的凸柱11，通过所述凸柱11与所述卡扣孔430配合使得所述连接件43固设于所述后盖1，具体的，通过热熔所述凸柱11，使得所述连接件43牢靠固定于所述后盖1。
所述主板2上对应所述馈地点420设有与所述馈地点420连接的接地开关（未图示），当然，所述主板2上还有安装其它电子元器件，例如扬声器、麦克风、USB接口、马达等。
所述调频开关用于调节天线频率的偏移，具体如图5所示，所述接地开关调节四个频段；具体如图6所示，所述回路天线4的工作频段在700-960MHz和1710-2690MHz时，天线效率满足对天线性能的要求。
本发明还提供了一种移动终端，还包括所述的回路天线系统100。
与相关技术相比，本发明提供的一种回路天线系统具有如下有益效果：通过在耳机座的上方设置连接件，解决了传统整机结构因厚度限制而导致耳机座上方无法设置成型天线的支架进而影响天线性能的问题，消除了耳机座对天线布局的局限。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (8)

  1. 一种回路天线系统，包括后盖、收容于所述后盖内的主板、固设于所述主板并位于所述后盖与所述主板之间的塑料背壳以及设于所述主板上的耳机座，其特征在于，所述回路天线系统包括设置于所述塑料背壳正对所述后盖的表面上的回路天线，所述回路天线包括分设于所述耳机座两侧的第一回路辐射单元和第二回路辐射单元以及跨设于所述耳机座之上并连接所述第一回路辐射单元和所述第二回路辐射单元的连接件，所述第一回路辐射单元上设有接地的馈地点，所述第二回路辐射单元上设有与所述主板上的天线馈电电路电连接的馈电点，所述主板对应所述馈地点设有与所述馈地点连接的接地开关，所述连接件固设于所述后盖且所述连接件的相对两端分别抵接所述第一回路辐射单元和所述第二回路辐射单元。
  2. 根据权利要求1所述的回路天线系统，其特征在于，所述馈电点设于所述第二回路辐射单元的远离所述连接件的末端，所述馈地点设于所述第一回路辐射单元的远离所述连接件的末端。
  3. 根据权利要求1所述的回路天线系统，其特征在于，所述第一回路辐射单元和所述第二回路辐射单元均为具有开口的半封闭结构，且所述第一回路辐射单元的开口与所述第二回路辐射单元的开口相对。
  4. 根据权利要求1所述的回路天线系统，其特征在于，所述回路天线的工作频段为700-960MHz和1710-2690MHz。
  5. 根据权利要求1所述的回路天线系统，其特征在于，所述连接件的相对两端分别弹性抵接所述第一回路辐射单元和所述第二回路辐射单元。
  6. 根据权利要求1所述的回路天线系统，其特征在于，所述第一回路辐射单元和所述第二回路辐射单元采用LDS技术成型工艺设置于所述塑料背壳。
  7. 根据权利要求1所述的回路天线系统，其特征在于，所述连接件设有卡扣孔，所述后盖对应所述连接件的位置设有于所述卡扣孔配合的凸柱，通过所述凸柱与所述卡扣孔配合使得所述连接件固设于所述后盖。
  8. 一种移动终端，其特征在于，包括权利要求1-7任意一项所述的回路天线系统。
PCT/CN2019/088236 2018-08-03 2019-05-24 回路天线系统及移动终端 WO2020024674A1 (zh)

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TWI756931B (zh) * 2020-11-20 2022-03-01 緯創資通股份有限公司 天線結構

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