WO2020134452A1 - 天线模组及移动终端 - Google Patents

天线模组及移动终端 Download PDF

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Publication number
WO2020134452A1
WO2020134452A1 PCT/CN2019/113303 CN2019113303W WO2020134452A1 WO 2020134452 A1 WO2020134452 A1 WO 2020134452A1 CN 2019113303 W CN2019113303 W CN 2019113303W WO 2020134452 A1 WO2020134452 A1 WO 2020134452A1
Authority
WO
WIPO (PCT)
Prior art keywords
tuning switch
radiator
mobile terminal
antenna module
main board
Prior art date
Application number
PCT/CN2019/113303
Other languages
English (en)
French (fr)
Inventor
沈亚川
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声光电科技(苏州)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 瑞声声学科技(深圳)有限公司, 瑞声光电科技(苏州)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2020134452A1 publication Critical patent/WO2020134452A1/zh

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; 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
    • H01Q1/243Supports; 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/328Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/335Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching

Definitions

  • the utility model relates to the field of communication technology, in particular to an antenna module and a mobile terminal.
  • the arrangement between the antenna module and the components inside the mobile terminal is bound to be tight, usually the antenna module
  • the radiator is set across the USB interface, which brings about the interference problem of the USB interface to the antenna.
  • MIMO Multiple-Input Multiple-Output
  • the number of antennas built in the mobile terminal is increasing, which further increases the difficulty of how to lay out the antenna module and internal components of the mobile terminal.
  • Laser Direct Structuin refers to using a computer to control the movement of the laser according to the trajectory of the conductive pattern, projecting the laser onto the molded three-dimensional plastic device, and activating within a few seconds.
  • Out circuit pattern For the design and production of mobile phone antennas, it refers to the formation of metal antenna patterns on the plastic back shell by laser plating technology directly on the plastic back shell.
  • the antenna pattern formed by the LDS antenna in related technology has gaps, and has the defect of being easily broken when dropped, and the radium plating and chemical plating are difficult and long.
  • the purpose of the present invention is to overcome the above technical problems, to provide an antenna module suitable for MIMO terminals with an increased number of antennas, and the radiator of the antenna module is seamlessly laid on the plastic back shell, the structure is simple and easy to form , Strong anti-drop ability.
  • the present invention provides an antenna module applied to a mobile terminal
  • the mobile terminal includes a back cover, a main board accommodated in the back cover, located on the back cover and the main board And a plastic back shell disposed on the main board and a USB interface installed on the main board, the plastic back shell is disposed adjacent to the bottom of the mobile terminal
  • the antenna module includes a molded plastic back A radiator facing the surface of the rear cover and a feeding point and a grounding point provided on the main board
  • the antenna module further includes a matching network, a first tuning switch, a second tuning switch and a third tuning switch, The feed point is connected to the radiator through the matching network, the ground point is connected to the radiator through the first tuning switch, and one end of the second tuning switch is connected to the other end of the matching network Grounding, one end of the third tuning switch is connected to the matching network and the other end is grounded
  • the surface of the plastic back shell facing the back cover includes a first molding area for molding the radiator and the first molding
  • the mobile terminal has a rectangular structure, and the first molding area is located at a lower right corner of the mobile terminal.
  • the radiator is lasered on the surface of the plastic back shell facing the back cover through the LDS process
  • the first tuning switch, the second tuning switch and the third tuning switch all have an open state and an access state;
  • the working frequency band covered by the radiator is 790 ⁇ 862MHz
  • the working frequency band covered by the radiator is 862 ⁇ 960MHz
  • the working frequency band covered by the radiator is 1710 ⁇ 2690MHz
  • the utility model also provides a mobile terminal, which includes the above-mentioned antenna module.
  • the mobile terminal further includes a microphone installed on the motherboard and located below the radiator , The feed point and the ground point are located on a side of the microphone away from the USB interface.
  • the antenna module and the mobile terminal provided by the present invention have the following beneficial effects:
  • the radiator of the antenna module is spread on the surface of the plastic back shell facing the back cover, the radiator has a large area, which overcomes I saw that there is a defect that the LDS trace is easily broken, which obviously improves the drop resistance;
  • the structure is simple, and the time and difficulty of radium plating and chemical plating can be reduced when forming by LDS, and it is easier to form; compared with the conventional scheme, it saves more space, It is more suitable for MIMO terminals with an increased number of antennas;
  • the radiator does not cross the USB interface, reducing the influence of the USB interface on the antenna, and it is convenient to adjust the setting positions of the radiator and the USB interface, and the operable space is larger.
  • FIG. 1 is a schematic perspective structural exploded view of a preferred embodiment of a mobile terminal provided by the present invention
  • FIG. 2 is a three-dimensional exploded schematic view of the plastic back cover and radiator of the mobile terminal shown in FIG. 1;
  • FIG. 3 is a schematic diagram of a partial three-dimensional structure of the mobile terminal shown in FIG. 1;
  • FIG. 4 is a schematic diagram of a circuit connection structure of an embodiment of the antenna module of the mobile terminal shown in FIG. 1;
  • FIG. 5 is a simulation result curve of the reflection coefficient of the antenna module of the mobile terminal provided by the present invention;
  • FIG. 6 is a graph of the efficiency simulation effect of the antenna module of the mobile terminal provided by the utility model.
  • an embodiment of the present invention provides a mobile terminal 100.
  • the mobile terminal 100 may be a mobile phone, a tablet computer, a multimedia player, etc.
  • the following embodiments Take a smartphone as an example for description.
  • the mobile terminal 100 includes a screen 10, a back cover 20 that supports the screen 10 and forms an accommodating space with the screen 10, a main board 30 housed in the back cover 20, and is located on the back cover 20 and all A plastic back shell 50 disposed between the main board 30 and covered on the main board 30, an antenna module housed in the accommodation space, and a USB interface 70 and a microphone 80 installed on the main board 30.
  • the antenna module is used for the mobile terminal to realize the communication function B.
  • the USB interface 70 is used for connection and communication between the mobile terminal and external devices.
  • the microphone 80 is used to convert the sound signal into an electric signal to enable the mobile terminal to realize calling and recording functions.
  • the plastic back case 50 is provided adjacent to the bottom of the mobile terminal 100, the plastic back case 50 is provided with a first through hole 501 communicating with the front end of the USB interface 70 and communicating with the front end of the microphone 80 Second through hole 502
  • the antenna module includes a radiator 61 formed on a surface of the plastic back shell 50 facing the rear cover 20.
  • the surface of the plastic back shell 50 facing the rear cover 20 includes a first molding area 51 for molding the radiator 61 and a second area 53 in addition to the first molding area 51. Specifically, there are only two boundary lines between the first forming area 51 and the second area 52, and one is located on a first plane perpendicular to the main board 30 and parallel to the short axis of the mobile terminal 100 On 101, another is located on a second plane 102 perpendicular to the first plane 101 and perpendicular to the main board 30.
  • first molding area 51 and the second area 53 correspond to the surface of the plastic back shell 50 facing the rear cover 20 is divided by the first plane 101 and the second plane 102 is divided into two parts. It should be noted that the first plane 101 and the second plane 102 are virtual planes that are convenient for describing the shape of the radiator of the antenna module.
  • the radiator 61 is formed on the surface of the plastic back shell 50 facing the back cover, and completely covers the first molding area 51, and the radiator 61 and the USB interface 70 are on the motherboard 30
  • the orthographic projections above do not overlap with each other.
  • the radiator 61 is shaped according to each feature on the first forming area 51 and has the same contour as the first forming area 51.
  • the radiator 61 is formed on the plastic back shell 5 through the LDS laser engraving process 0surface of the first molding area 51. Since the radiator 61 completely covers the first molding area 51 and has a simple outer contour, it is not necessary to design a complicated laser engraving circuit when performing LDS laser engraving, which simplifies the laser engraving process and reduces the laser engraving Precision requirements.
  • the mobile terminal 100 has a rectangular structure, the first molding area 51 is located in the lower right corner of the mobile terminal 100, the right side of the USB, that is, the radiator 61 is disposed on the The lower right corner of the mobile terminal 100.
  • This layout on the one hand, is more space-saving than conventional solutions, and is more suitable for MIMO terminals with an increased number of antennas.
  • the radiator 61 does not cross the USB interface 70, reducing the number of USB interface 70 pairs. The influence of the antenna, moreover, it is convenient to adjust the installation position of the radiator 61 or the USB interface 70, and the operable space is larger.
  • the antenna module is a 1/8 wavelength antenna, that is, the length of the radiator is approximately 1/8 of the lowest operating frequency band, which further reduces the radiator The occupied space is more helpful to increase the number of antennas in a limited space.
  • the antenna module further includes a feed point 62, a ground point 63, a matching network 64, a first tuning switch 65, a second tuning switch 66, and a third tuning switch 67 provided on the main board 30.
  • the feed point 62 is connected to the radiator 61 through the matching network 64
  • the ground point 63 is connected to the radiator 61 through the first tuning switch 65
  • the second tuning switch 66 is The other end connected to the matching network 64 is grounded
  • the third tuning switch 67 is connected to the other end grounded at the other end.
  • the feed point 62 and the ground point 63 are located on the side of the microphone 80 away from the USB interface 70.
  • the matching network 64 includes a first inductor L1, a first end of the first inductor L1 is connected to the feed point 62 and the second tuning switch 66, the first The second end of an inductor L1 is connected to the radiator 61 and the third tuning switch 67 respectively.
  • One end of the first tuning switch 65 is connected to the radiator 61 and the other end is grounded.
  • the second tuning switch 66 includes a second inductance L2.
  • the second inductance L2 is connected to the first end of the first inductance L1, and the other end is grounded.
  • the third tuning switch 67 includes a capacitor C, one end of the capacitor C is connected to the second end of the first inductor L1, and the other end is grounded.
  • the inductance value of the first inductance L1 is 3 nH
  • the inductance value of the second inductance L2 is 2.5 nH
  • the capacitance value of the capacitor C is 1.7 pF.
  • the first tuning switch 65, the second tuning switch 66, and the third tuning switch 67 all have an open circuit Status and access status.
  • the working frequency band covered by the radiator 61 is 790-862 MHz;
  • the working frequency band covered by the radiator 61 is 862 ⁇ 960MHz;
  • the working frequency band covered by the radiator 61 is 1710-2690 MHz.
  • the working frequency bands covered by the radiator 61 are 790 to 960 MHz and 1710 to 2690 MHz.
  • the reflection coefficient and efficiency of each working frequency band As shown in FIGS. 5 and 6, the abscissa in FIGS. 5 and 6 is frequency and the unit is GHz, and the ordinate in FIGS. 5 and 6 represents the reflection coefficient and efficiency, respectively, in dB.
  • curve a indicates that the second tuning switch 66 and the third tuning switch 67 are in an access state and the first tuning switch 65 is in an open state
  • curve b indicates that the second tuning switch 66 is in an access state
  • the first tuning switch 65 and the third tuning switch 67 are in an open circuit state
  • the curve c indicates that the first tuning switch 65 and the third tuning switch 67 are in an access state and the second tuning switch 66 Is open.
  • the antenna module and the mobile terminal provided by the present invention have the following beneficial effects:
  • the radiator of the antenna module is spread on the surface of the plastic back shell facing the back cover, the radiator has a large area, which overcomes I saw that there is a defect that the LDS trace is easily broken, which obviously improves the drop resistance;
  • the structure is simple, and the time and difficulty of radium plating and chemical plating can be reduced when forming by LDS, and it is easier to form; compared with the conventional scheme, it saves more space, It is more suitable for MIMO terminals with an increased number of antennas;
  • the radiator does not cross the USB interface, reducing the influence of the USB interface on the antenna, and it is convenient to adjust the setting positions of the radiator and the USB interface, and the operable space is larger.

Abstract

本实用新型提供了一种天线模组及移动终端。所述移动终端包括后盖、收容于所述后盖内的主板、位于所述后盖与所述主板之间并罩设在所述主板上的塑料背壳和安装于所述主板的USB接口,所述塑料背壳邻近所述移动终端的底部设置,所述天线模组包括成型于所述塑料背壳朝向所述后盖的表面的辐射体以及设置在所述主板的馈电点和接地点,所述天线模组还包括匹配网络、第一调谐开关、第二调谐开关和第三调谐开关,所述塑料背壳朝向所述后盖的表面包括用于成型所述辐射体的第一成型区和除了所述第一成型区之外的第二区,所述辐射体完全覆盖所述第一成型区,且所述辐射体与所述USB接口在所述主板上的正投影互不重叠。

Description

天线模组及移动终端
技术领域
[0001] 本实用新型涉及通讯技术领域, 尤其涉及一种天线模组及移动终端。
背景技术
[0002] 随着移动通讯技术的发展, 手机、 PAD、 笔记本电脑等逐渐成为生活中不可或 缺的电子产品, 并且该类电子产品都增设了天线模组使其变成具有通讯功能的 电子通讯产品。
[0003] 随着移动终端的设计越来越趋于超薄化, 受到移动终端大小尺寸的限制, 天线 模组与移动终端内部的元器件之间的排布必然紧密, 通常是将天线模组的辐射 体跨过 USB接口设置, 这就带来了 USB接口对天线的干扰问题。 而且为了满足多 输入多输出 (MIMO: Multiple-Input Multiple-Output) , 移动终端内置的天线数量越 来越多, 更加增大了天线模组与移动终端内部元器件如何布局的难度。
[0004] 激光直接成型技术 (Laser Direct Structuin, LDS)是指利用计算机按照导电图形 的轨迹控制激光的运动, 将激光投射到模塑成型的三维塑料器件上, 在几秒钟 的时间内, 活化出电路图案。 对于手机天线的设计与生产来说, 是指在成型的 塑料背壳上, 利用激光镭射技术直接在塑料背壳上化镀形成金属天线图案。 相 关技术采用 LDS天线成型的天线图案存在缝隙, 具有跌落时易断裂的缺陷, 且镭 镀、 化镀难度大, 时间长。
[0005] 因此, 实有必要提供一种改进的天线模组以解决上述问题。
发明概述
技术问题
[0006] 本实用新型的目的是克服上述技术问题, 提供一种适合天线数量增加的 MIMO 终端的天线模组, 且该天线模组的辐射体无缝铺设于塑料背壳, 结构简单、 易 成型、 抗跌落能力强。
问题的解决方案
技术解决方案 [0007] 为了实现上述目的, 本实用新型提供一种天线模组, 应用于移动终端, 所述移 动终端包括后盖、 收容于所述后盖内的主板、 位于所述后盖与所述主板之间并 罩设在所述主板上的塑料背壳和安装于所述主板的 USB接口, 所述塑料背壳邻近 所述移动终端的底部设置, 所述天线模组包括成型于所述塑料背壳朝向所述后 盖的表面的辐射体以及设置在所述主板的馈电点和接地点, 所述天线模组还包 括匹配网络、 第一调谐开关、 第二调谐开关和第三调谐开关, 所述馈电点通过 所述匹配网络与所述辐射体连接, 所述接地点通过所述第一调谐开关与所述辐 射体连接, 所述第二调谐开关一端与所述匹配网络连接另一端接地, 所述第三 调谐开关一端与所述匹配网络连接另一端接地, 所述塑料背壳朝向所述后盖的 表面包括用于成型所述辐射体的第一成型区和除了所述第一成型区之外的第二 区, 所述辐射体完全覆盖所述第一成型区, 且所述辐射体与所述 USB接口在所述 主板上的正投影互不重叠, 所述第一成型区与所述第二区的分界线有且仅有两 条, 一条位于与所述主板垂直且与所述移动终端的短轴平行的第一平面上, 另 一条位于垂直于所述第一平面且垂直于所述主板的第二平面上。
[0008] 优选的, 所述移动终端呈矩形结构, 所述第一成型区位于所述移动终端的右下 角。
[0009] 优选的, 所述辐射体通过 LDS工艺镭射于所述塑料背壳朝向所述后盖的表面上
[0010] 优选的, 所述第一调谐开关、 所述第二调谐开关和所述第三调谐开关均具有开 路状态和接入状态;
[0011] 当所述第二调谐开关和所述第三调谐开关处于接入状态且所述第一调谐开关处 于开路状态时, 所述辐射体覆盖的工作频段为 790~862MHz;
[0012] 当所述第二调谐开关处于接入状态且所述第一调谐开关和所述第三调谐开关处 于开路状态时, 所述辐射体覆盖的工作频段为 862~960MHz;
[0013] 当所述第一调谐开关和所述第三调谐开关处于接入状态且所述第二调谐开关处 于开路状态时, 所述辐射体覆盖的工作频段为 1710~2690MHz
[0014] 本实用新型还提供一种移动终端, 其包括上述的天线模组。
[0015] 优选的, 所述移动终端还包括安装于所述主板并位于所述辐射体下方的麦克风 , 所述馈电点和所述接地点位于所述麦克风远离所述 USB接口的一侧。
发明的有益效果
有益效果
[0016] 与相关技术相比, 本实用新型提供的天线模组及移动终端具有如下有益效果: 天线模组的辐射体整铺于塑料背壳朝向后盖的表面上, 辐射体面积大, 克服了 5见有 LDS走线易断裂的缺陷, 明显提高抗跌落能力; 结构简单, 通过 LDS成型时 , 可降低镭镀、 化镀的时间和难度, 更易成型; 相对于常规方案, 更加节省空 间, 更适合天线数量增加的 MIMO终端; 辐射体不跨过 USB接口, 减少了 USB接 口对天线的影响, 而且, 便于调整辐射体和 USB接口的设置位置, 可操作空间更 大。
对附图的简要说明
附图说明
[0017] 为了更清楚地说明本实用新型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实用 新型的一些实施例, 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:
[0018] 图 1为本实用新型提供的移动终端一较佳实施例的立体分解结构示意图;
[0019] 图 2为图 1所示移动终端的塑料背壳和辐射体的立体分解结构示意图;
[0020] 图 3为图 1所示移动终端的部分立体结构示意图;
[0021] 图 4为图 1所示移动终端的天线模组一种具体实施例的电路连接结构示意图; [0022] 图 5为本实用新型提供的移动终端的天线模组的反射系数仿真效果曲线图; [0023] 图 6为本实用新型提供的移动终端的天线模组的效率仿真效果曲线图。
发明实施例
具体实施方式
[0024] 下面将结合本实用新型实施例中的附图, 对本实用新型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实用新型的一部分实施例 , 而不是全部的实施例。 基于本实用新型中的实施例, 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, 都属于本实用新型保护 的范围。
[0025] 如图 1至图 4所示, 本实用新型实施例提供了一种移动终端 100, 所述移动终端 1 00可以为手机、 平板电脑、 多媒体播放器等, 为便于理解, 以下实施例以智能 手机为例进行描述。
[0026] 所述移动终端 100包括屏幕 10、 支撑屏幕 10并与所述屏幕 10围成容纳空间的后 盖 20、 收容于所述后盖 20内的主板 30、 位于所述后盖 20与所述主板 30之间并罩 设在所述主板 30上的塑料背壳 50、 收容于所述容纳空间的天线模组以及安装于 所述主板 30上的 USB接口 70和麦克风 80。 所述天线模组用于移动终端实现通信功 育 B。 所述 USB接口 70用于移动终端与外部设备的连接和通讯。 所述麦克风 80用于 将声音信号转换成电信号使移动终端实现通话和录音功能。
[0027] 所述塑料背壳 50邻近所述移动终端 100的底部设置, 所述塑料背壳 50设有与所 述 USB接口 70前端连通的第一通孔 501和与所述麦克风 80前端连通的第二通孔 502
[0028] 所述天线模组包括成型于所述塑料背壳 50朝向所述后盖 20的表面的辐射体 61。
[0029] 所述塑料背壳 50朝向所述后盖 20的表面包括用于成型所述辐射体 61的第一成型 区 51和除了所述第一成型区 51之外的第二区 53。 具体地, 所述第一成型区 51与 所述第二区 52的分界线有且仅有两条, 一条位于与所述主板 30垂直且与所述移 动终端 100的短轴平行的第一平面 101上, 另一条位于垂直于所述第一平面 101且 垂直于所述主板 30的第二平面 102上。
[0030] 为了便于理解, 所述第一成型区 51和所述第二区 53相当于所述塑料背壳 50朝向 所述后盖 20的表面被所述第一平面 101和所述第二平面 102分割而成的两部分。 需要说明的是, 第一平面 101和第二平面 102均为方便描述天线模组的辐射体的 形状定义的虚拟平面。
[0031] 所述辐射体 61成型于所述塑料背壳 50朝向所述后盖的表面, 并完全覆盖第一成 型区 51, 且所述辐射体 61与所述 USB接口 70在所述主板 30上的正投影互不重叠。 所述辐射体 61依照所述第一成型区 51上的每一个特征成型, 与所述第一成型区 5 1的轮廓完全相同。 具体, 所述辐射体 61通过 LDS镭雕工艺成型于所述塑料背壳 5 0表面的第一成型区 51。 由于所述辐射体 61完全覆盖所述第一成型区 51, 具有简 单的外轮廓, 因而在进行 LDS镭雕时, 不必设计复杂的镭雕线路, 简化了镭雕工 序, 并降低了对镭雕精度的要求。
[0032] 在本实施例中, 所述移动终端 100呈矩形结构, 所述第一成型区 51位于所述移 动终端 100的右下角, USB的右侧, 即所述辐射体 61布设于所述移动终端 100的右 下角。 该布局, 一方面, 相对于常规方案, 更加节省空间, 更适合天线数量增 加的 MIMO终端, 另一方面, 所述辐射体 61不跨过所述 USB接口 70, 减少了所述 USB接口 70对天线的影响, 而且, 便于调整所述辐射体 61或所述 USB接口 70的设 置位置, 可操作空间更大。
[0033] 此外, 需要说明的是, 本实施例中, 所述天线模组为 1/8波长天线, 即所述辐 射体的长度大约为最低工作频段的 1/8 , 进一步减小了辐射体的占用空间, 更有 助于在有限的空间内增加天线数量。
[0034] 所述天线模组还包括设置在所述主板 30上的馈电点 62、 接地点 63、 匹配网络 64 、 第一调谐开关 65、 第二调谐开关 66和第三调谐开关 67。 所述馈电点 62通过所 述匹配网络 64与所述辐射体 61连接, 所述接地点 63通过所述第一调谐开关 65与 所述辐射体 61连接, 所述第二调谐开关 66—端与所述匹配网络 64连接另一端接 地, 所述第三调谐开关 67—端与所述匹配网络 64连接另一端接地。
[0035] 在本实施例中, 所述馈电点 62和所述接地点 63位于所述麦克风 80远离所述 USB 接口 70的一侧。
[0036] 请参阅图 4, 所述匹配网络 64包括第一电感 L1, 所述第一电感 L1的第一端分别 与所述馈电点 62和所述第二调谐开关 66连接, 所述第一电感 L1的第二端分别与 所述辐射体 61和所述第三调谐开关 67连接。 所述第一调谐开关 65—端与所述辐 射体 61连接另一端接地。 所述第二调谐开关 66包括第二电感 L2, 所述第二电感 L 2—端与所述第一电感 L1的第一端连接, 另一端接地。 所述第三调谐开关 67包括 电容 C, 所述电容 C一端与所述第一电感 L1的第二端连接, 另一端接地。 在本实 施例中, 所述第一电感 L1的电感值为 3nH, 所述第二电感 L2的电感值为 2.5nH, 所述电容 C的电容值为 1.7pF。
[0037] 所述第一调谐开关 65、 所述第二调谐开关 66和所述第三调谐开关 67均具有开路 状态和接入状态。 当所述第二调谐开关 66和所述第三调谐开关 67处于接入状态 且所述第一调谐开关 65处于开路状态时, 所述辐射体 61覆盖的工作频段为 790~8 62MHz; 当所述第二调谐开关 66处于接入状态且所述第一调谐开关 65和所述第 三调谐开关 67处于开路状态时, 所述辐射体 61覆盖的工作频段为 862~960MHz; 当所述第一调谐开关 65和所述第三调谐开关 67处于接入状态且所述第二调谐开 关 66处于开路状态时, 所述辐射体 61覆盖的工作频段为 1710~2690MHz。 在本实 施例中的, 所述辐射体 61覆盖的工作频段为 790~960 MHz和 1710~2690MHz。
[0038] 基于上述结构, 本实用新型的天线模组中的第一调谐开关 65、 第二调谐开关 66 及第三调谐开关 67在开路状态和接入状态时, 各个工作频段的反射系数和效率 如图 5和图 6所示, 其中图 5和图 6中的横坐标为频率, 单位为 GHz, 图 5和图 6中的 纵坐标分别表示反射系数和效率, 单位均为 dB。 其中, 曲线 a表示所述第二调谐 开关 66和所述第三调谐开关 67处于接入状态且所述第一调谐开关 65处于开路状 态, 曲线 b表示所述第二调谐开关 66处于接入状态且所述第一调谐开关 65和所述 第三调谐开关 67处于开路状态, 曲线 c表示所述第一调谐开关 65和所述第三调谐 开关 67处于接入状态且所述第二调谐开关 66处于开路状态。
[0039] 与相关技术相比, 本实用新型提供的天线模组及移动终端具有如下有益效果: 天线模组的辐射体整铺于塑料背壳朝向后盖的表面上, 辐射体面积大, 克服了 5见有 LDS走线易断裂的缺陷, 明显提高抗跌落能力; 结构简单, 通过 LDS成型时 , 可降低镭镀、 化镀的时间和难度, 更易成型; 相对于常规方案, 更加节省空 间, 更适合天线数量增加的 MIMO终端; 辐射体不跨过 USB接口, 减少了 USB接 口对天线的影响, 而且, 便于调整辐射体和 USB接口的设置位置, 可操作空间更 大。
[0040] 以上所述的仅是本实用新型的实施方式, 在此应当指出, 对于本领域的普通技 术人员来说, 在不脱离本实用新型创造构思的前提下, 还可以做出改进, 但这 些均属于本实用新型的保护范围。

Claims

权利要求书
[权利要求 1] 一种天线模组, 应用于移动终端, 所述移动终端包括后盖、 收容于所 述后盖内的主板、 位于所述后盖与所述主板之间并罩设在所述主板上 的塑料背壳和安装于所述主板的 USB接口, 所述塑料背壳邻近所述移 动终端的底部设置, 所述天线模组包括成型于所述塑料背壳朝向所述 后盖的表面的辐射体以及设置在所述主板的馈电点和接地点, 其特征 在于, 所述天线模组还包括匹配网络、 第一调谐开关、 第二调谐开关 和第三调谐开关, 所述馈电点通过所述匹配网络与所述辐射体连接, 所述接地点通过所述第一调谐开关与所述辐射体连接, 所述第二调谐 开关一端与所述匹配网络连接另一端接地, 所述第三调谐开关一端与 所述匹配网络连接另一端接地, 所述塑料背壳朝向所述后盖的表面包 括用于成型所述辐射体的第一成型区和除了所述第一成型区之外的第 二区, 所述辐射体完全覆盖所述第一成型区, 且所述辐射体与所述 U SB接口在所述主板上的正投影互不重叠, 所述第一成型区与所述第 二区的分界线有且仅有两条, 一条位于与所述主板垂直且与所述移动 终端的短轴平行的第一平面上, 另一条位于垂直于所述第一平面且垂 直于所述主板的第二平面上, 所述辐射体的长度为所述天线模组最低 工作频率的 1/8波长。
[权利要求 2] 根据权利要求 1所述的天线模组, 其特征在于, 所述移动终端呈矩形 结构, 所述第一成型区位于所述移动终端的右下角。
[权利要求 3] 根据权利要求 1所述的天线模组, 其特征在于, 所述辐射体通过 LDS 工艺镭射于所述塑料背壳朝向所述后盖的表面上。
[权利要求 4] 根据权利要求 1所述的天线模组, 其特征在于, 所述第一调谐开关、 所述第二调谐开关和所述第三调谐开关均具有开路状态和接入状态; 当所述第二调谐开关和所述第三调谐开关处于接入状态且所述第一调 谐开关处于开路状态时, 所述辐射体覆盖的工作频段为 790~862MHz 当所述第二调谐开关处于接入状态且所述第一调谐开关和所述第三调 谐开关处于开路状态时, 所述福射体覆盖的工作频段为 862〜 960MHz 当所述第一调谐开关和所述第三调谐开关处于接入状态且所述第二调 谐开关处于开路状态时, 所述辐射体覆盖的工作频段为 1710~2690M Hz。
[权利要求 5] 一种移动终端, 其包括权利要求 1至 4任一项所述的天线模组。
[权利要求 6] 根据权利要求 5所述的移动终端, 其特征在于, 所述移动终端还包括 安装于所述主板并位于所述辐射体下方的麦克风, 所述馈电点和所述 接地点位于所述麦克风远离所述 USB接口的一侧。
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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208806357U (zh) * 2018-08-03 2019-04-30 瑞声光电科技(苏州)有限公司 天线模组及移动终端
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CN214099926U (zh) * 2020-08-18 2021-08-31 华为技术有限公司 可配置调谐电路、匹配网络、天线系统和终端设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160211571A1 (en) * 2015-01-20 2016-07-21 Wistron Neweb Corp. Electronic device having antenna structure
CN106972254A (zh) * 2016-09-22 2017-07-21 瑞声科技(新加坡)有限公司 移动终端
CN108110407A (zh) * 2017-12-18 2018-06-01 深圳天珑无线科技有限公司 移动终端
CN108321515A (zh) * 2018-01-04 2018-07-24 瑞声科技(新加坡)有限公司 一种天线系统及移动终端
CN209329141U (zh) * 2018-12-27 2019-08-30 瑞声光电科技(苏州)有限公司 天线模组及移动终端

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7023389B2 (en) * 2003-08-26 2006-04-04 Motorola, Inc. Detachable antenna module
TWI397302B (zh) * 2009-05-26 2013-05-21 Wistron Corp 可攜式電子裝置與行動通訊裝置的組合
TWI548146B (zh) * 2011-06-13 2016-09-01 群邁通訊股份有限公司 天線模組
TWI528645B (zh) * 2013-08-09 2016-04-01 啟碁科技股份有限公司 天線結構
JP6058573B2 (ja) * 2014-03-13 2017-01-11 株式会社東芝 アンテナおよび電子機器
US20180115054A1 (en) * 2016-01-28 2018-04-26 AAC Technologies Pte. Ltd. Mobile device
CN107453056B (zh) * 2017-06-22 2020-08-21 瑞声科技(新加坡)有限公司 天线系统以及通讯设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160211571A1 (en) * 2015-01-20 2016-07-21 Wistron Neweb Corp. Electronic device having antenna structure
CN106972254A (zh) * 2016-09-22 2017-07-21 瑞声科技(新加坡)有限公司 移动终端
CN108110407A (zh) * 2017-12-18 2018-06-01 深圳天珑无线科技有限公司 移动终端
CN108321515A (zh) * 2018-01-04 2018-07-24 瑞声科技(新加坡)有限公司 一种天线系统及移动终端
CN209329141U (zh) * 2018-12-27 2019-08-30 瑞声光电科技(苏州)有限公司 天线模组及移动终端

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