WO2020034685A1 - 天线系统及移动终端 - Google Patents

天线系统及移动终端 Download PDF

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Publication number
WO2020034685A1
WO2020034685A1 PCT/CN2019/087687 CN2019087687W WO2020034685A1 WO 2020034685 A1 WO2020034685 A1 WO 2020034685A1 CN 2019087687 W CN2019087687 W CN 2019087687W WO 2020034685 A1 WO2020034685 A1 WO 2020034685A1
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WO
WIPO (PCT)
Prior art keywords
branch
antenna system
short side
extending
metal wiring
Prior art date
Application number
PCT/CN2019/087687
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English (en)
French (fr)
Inventor
邱孝钧
Original Assignee
瑞声声学科技(深圳)有限公司
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Publication of WO2020034685A1 publication Critical patent/WO2020034685A1/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
    • H01Q1/36—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
    • H01Q1/12—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
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/106—Microstrip slot antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/328—Individual 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components

Definitions

  • the utility model relates to the technical field of antennas, in particular to an antenna system and a mobile terminal.
  • wireless communication equipment there is always a device that radiates electromagnetic energy to space and receives electromagnetic energy from space.
  • This device is an antenna.
  • the function of the antenna is to transmit digital signals or analog signals modulated to the radio frequency to the space wireless channel, or to receive digital or analog signals modulated to the radio frequency from the space wireless channel.
  • the PIFA antenna in the related art has one antenna branch at a high frequency, which can only generate one resonance, and it is difficult to cover the required frequency band.
  • An object of the present invention is to provide an antenna system, which can generate two resonances by setting two branches, so that the antenna system can reach a required frequency band.
  • the technical solution of the present utility model is as follows: An antenna system is applied to a mobile terminal.
  • the mobile terminal includes a back shell, a main board housed in the back shell, a bracket provided between the back shell and the main board, and an arrangement.
  • a metal trace on the surface of the bracket, a headroom is provided on one end of the motherboard corresponding to the metal trace, the motherboard is provided with a grounding switch and a feeding point, and the metal trace includes a body portion and a self-supporting portion
  • the main body portion extends to both sides of a first branch that generates low-frequency resonance and a second branch that generates high-frequency resonance
  • the metal wiring further includes a portion extending from the body portion to extend out of the side of the first branch.
  • the third branch of the intermediate frequency resonance, the first branch is bent to form a semi-closed opening, the third branch is wrapped in the semi-closed opening and spaced from the first branch, the ground switch and the feeder Electrical points are connected to the body portion.
  • the radiation frequency of the antenna system covers 790-960MHz and 1710-2690MHz.
  • the width of the clearance area is 5 mm.
  • the back shell includes a metal portion located in the middle and plastic portions located at both ends of the metal portion, the clearance area is provided corresponding to the plastic portion, and a width of the plastic portion is greater than a width of the clearance area.
  • the main board is connected to the metal part through three spring feet.
  • the metal wiring is formed on the bracket by an LDS process.
  • the back shell includes a frame
  • the frame includes a short side adjacent to the metal trace and a long side connected to the short side and adjacent to the metal trace
  • the first branch includes a free space A first portion extending from the main body portion and spaced in parallel to the short side, a second portion extending perpendicularly from the first portion to the short side direction, and two portions parallel to the short side from the second portion
  • a third portion and a fourth portion extending vertically from the sides, a fifth portion extending vertically from the fourth portion toward the short side direction, and a sixth portion extending vertically from the fifth portion away from the fourth portion, respectively.
  • the first part, the second part, the third part, the fourth part, the fifth part, and the sixth part form the semi-closed opening.
  • the third branch is located between the first portion and the fourth portion.
  • the second branch includes a seventh portion extending from the body portion toward the long side direction, an eighth portion bent from the seventh portion and matching the shape of the frame, and
  • An eighth part is a ninth part extending perpendicularly to the main body part, and a tenth part extending from the ninth part toward the first branch direction and spaced parallel to the short side, the tenth part is located at The body portion and the sixth portion are spaced apart from and apart from the body portion and the sixth portion.
  • the utility model also provides a mobile terminal including the antenna system.
  • the antenna system provided by the present utility model can generate three resonances at low frequency, intermediate frequency, and high frequency by setting three branches, so that two resonances can be generated at intermediate frequency and high frequency, so that the antenna system can be used. Cover the required frequency band.
  • FIG. 1 is an exploded perspective view of a mobile terminal of the present invention
  • FIG. 2 is a schematic structural diagram of a part of a mobile terminal of the present invention.
  • FIG. 3 is another schematic diagram of a partial structure of a mobile terminal of the present invention.
  • FIG. 4 is a perspective structural view of a metal wiring of the present invention.
  • FIG. 6 is an antenna efficiency diagram of the antenna system of the present invention.
  • An embodiment of the present invention provides an antenna system applied to a mobile terminal 100.
  • the mobile terminal 100 may be a mobile phone.
  • the mobile terminal 100 includes a back shell 1, a main board housed in the back shell 1, a bracket 3 provided between the back shell 1 and the main board 2, and a metal cable 4 provided on a surface of the bracket 3.
  • the mobile terminal 100 further includes components such as a display screen, a microphone, and a speaker, which are not illustrated here one by one.
  • the back shell 1 includes a metal part 11 located in the middle and plastic parts 12 located at both ends of the metal part 11.
  • the length of the back shell 11 is 156 mm, the width is 75 mm, and the width of the plastic part 12 is 10.5 mm.
  • the width of the plastic portion 12 refers to the width of the plastic portion 12 along the long axis direction of the back shell 1.
  • the main board 2 is provided with a grounding switch 21 and a feeding point 22, and the grounding switch 21 and the feeding point 22 are connected to the metal wiring 4, specifically, the metal wiring 4 is connected with The ground switch 21 is connected to the feeding point 22.
  • a clearance area 5 is provided on one end of the motherboard 2 corresponding to the metal wiring 4, and the clearance area is provided corresponding to the plastic portion 12, and the width of the plastic portion 12 is greater than the width of the clearance area 5.
  • the width of the headroom region 5 is 5 mm, and the width of the headroom region 5 refers to the width of the headroom region 5 along the long axis direction of the back shell 1.
  • the motherboard 2 includes a system ground (not shown), and the system ground of the motherboard 2 is connected to the metal portion 11 through three spring feet 23.
  • the metal wiring 4 is formed on the bracket 3 by an LDS (Laser Direct Forming) process.
  • the bracket 3 is preferably a plastic bracket.
  • the orthographic projection of the metal wiring 4 to the main board 2 is at least partially located in the headroom area 5.
  • the metal wiring 4 includes a main body portion 41 and extends from the main body portion 41 to both sides to generate low-frequency resonance, respectively.
  • the semi-closed opening, the third branch 413 is wrapped in the semi-closed opening and spaced from the first branch 411, and the ground switch 21 and the feeding point 22 are both connected to the body portion 41,
  • the body portion 41 is rectangular.
  • the antenna system 100 has two resonances at an intermediate frequency and a high frequency, so that the radiation frequency of the antenna system 100 covers 790 -960MHz and 1710-2690MHz, meet the actual needs.
  • the back shell 1 includes a frame 13, and the frame 13 includes a short side 131 adjacent to the metal trace 4 and a short side 131 connected to the short side 131 and adjacent to the metal trace 4.
  • the long side 132, the first branch 411 includes a first portion 4111 extending from the main body portion 41 and disposed parallel to the short side 131, and a first portion 4111 extending perpendicularly from the first portion 4111 in the direction of the short side 131
  • the second portion 4112, the third portion 4113 and the fourth portion 4114 extending perpendicularly from the second portion 4112 to the two sides parallel to the short side 131, respectively, and from the fourth portion 4114 to the short side 131
  • a fifth portion 4115 extending vertically and a sixth portion 4116 extending vertically from the fifth portion 4115 away from the fourth portion 4114.
  • the third branch 413 is located between the first portion 4111 and the fourth portion 4114, and the third branch 413, the first portion 4111, and the fourth portion 4114 are disposed in parallel with each other.
  • the first portion 4111, the second portion 4112, the third portion 4113, the fourth portion 4114, the fifth portion 4115, and the sixth portion 4116 form the semi-closed opening.
  • the second branch 412 includes a seventh portion 4121 extending from the body portion 41 in the direction of the long side 132 and an eighth portion 4122 bent and extending from the seventh portion 4121 to match the shape of the frame 13.
  • a ninth portion 4123 extending perpendicularly from the eighth portion 4122 to the body portion 41 and a first portion extending from the ninth portion 4123 in the direction of the first branch 411 and spaced in parallel with the short side 131
  • Ten portions 4124 are located between the body portion 41 and the sixth portion 4116 and spaced from the body portion 41 and the sixth portion 4116.
  • the mobile terminal 100 provided by the present invention includes the antenna system.
  • the mobile terminal 100 may be various portable electronic products such as a mobile phone, an IPDA, and a computer.
  • the antenna system provided by the present utility model can generate three resonances at low frequency, intermediate frequency, and high frequency by setting three branches, so that two resonances can be generated at intermediate frequency and high frequency, so that the antenna system can be used. Cover the required frequency band.

Abstract

本实用新型提供了一种天线系统，应用于移动终端，所述移动终端包括背壳、收容于背壳内的主板、设置于所述背壳与所述主板之间的支架以及设置于所述支架表面的金属走线，所述主板的一端设有净空区，所述金属走线向所述主板的正投影位于所述净空区内，所述主板设有接地开关和馈电点，所述金属走线包括本体部和自所述本体部向两侧分别延伸出产生中频谐振的第一分支、产生高频谐振的第二分支以及产生中频的第三分支，所述接地开关和所述馈电点均连接所述本体部。与相关技术相比，本实用新型提供的一种天线系统，其通过设置分别产生低频、中频和高频的三个分支，从而可在中频和高频产生两个谐振，使得所述天线系统可覆盖所需频段。

Description

天线系统及移动终端 【技术领域】
本实用新型涉及天线技术领域，尤其涉及一种天线系统及移动终端。
【背景技术】
在无线通信设备中，总存在一个向空间辐射电磁能量和从空间接收电磁能量的装置，这个装置就是天线。天线的作用是将调制到射频频率的数字信号或模拟信号发射到空间无线信道，或从空间无线信道接收调制在射频频率上的数字或模拟信号。
但是相关技术中的PIFA天线中高频共一个天线分支，只能产生一个谐振，很难覆盖到所需频段。
因此，有必要提供一种新型的天线系统以解决上述问题。
【实用新型内容】
本实用新型的目的在于提供一种天线系统，其通过设置两个分支，从而可以产生两个谐振，使得天线系统可达到所需频段。
本实用新型的技术方案如下：一种天线系统，应用于移动终端，所述移动终端包括背壳、收容于背壳内的主板、设置于所述背壳与所述主板之间的支架以及设置于所述支架表面的金属走线，所述主板上对应所述金属走线的一端设有净空区，所述主板设有接地开关和馈电点，所述金属走线包括本体部和自所述本体部向两侧分别延伸出产生低频谐振的第一分支和产生高频谐振的第二分支，所述金属走线还包括自所述本体部延伸出所述第一分支一侧延伸出产生中频谐振的第三分支，所述第一分支弯折形成半封闭开口，所述第三分支包覆在所述半封闭开口中并与所述第一分支间隔，所述接地开关和所述馈电点均连接所述本体部。
优选的，所述天线系统辐射频率覆盖790-960MHz和1710-2690MHz。
优选的，所述净空区的宽度为5mm。
优选的，所述背壳包括位于中间的金属部和位于所述金属部两端的塑料部，所述净空区对应所述塑料部设置且所述塑料部的宽度大于所述净空区的宽度。
优选的，所述主板通过三个弹脚与所述金属部连接。
优选的，所述金属走线采用LDS工艺成型于所述支架上。
优选的，所述背壳包括边框，所述边框包括与所述金属走线邻近的短边和连接所述短边并与所述金属走线邻近的长边，所述第一分支包括自所述本体部延伸并与所述短边平行间隔设置的第一部分、自所述第一部分向所述短边方向垂直延伸的第二部分、自所述第二部分向平行于所述短边的两侧分别垂直延伸的第三部分和第四部分、自所述第四部分向所述短边方向垂直延伸的第五部分、自所述第五部分向远离所述第四部分垂直延伸的第六部分以,所述第一部分、所述第二部分、所述第三部分、所述第四部分、所述第五部分和所述第六部分形成所述半封闭开口。
优选的，所述第三分支位于所述第一部分与所述第四部分之间。
优选的，所述第二分支包括自所述本体部向所述长边方向延伸的第七部分、自所述第七部分弯折延伸并与所述边框形状匹配的第八部分、自所述第八部分向所述本体部垂直延伸的第九部分以及自所述第九部分向所述第一分支方向延伸并与所述短边平行间隔设置的第十部分，所述第十部分位于所述本体部和所述第六部分之间且和与所述本体部和所述第六部分间隔。
本实用新型还提供了一种移动终端，包括所述的天线系统。
与相关技术相比，本实用新型提供的一种天线系统，其通过设置分别产生低频、中频和高频的三个分支，从而可在中频和高频产生两个谐振，使得所述天线系统可覆盖所需频段。
【附图说明】
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：
图1为本实用新型移动终端的立体分解图；
图2为本实用新型移动终端的部分结构示意图；
图3为本实用新型移动终端的部分结构的另一示意图；
图4为本实用新型金属走线的立体结构图；
图5为本实用新型天线系统的回波损耗图；
图6为本实用新型天线系统的天线效率图。
【具体实施方式】
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。
请一并参阅图1、图2和图3，本实用新型实施例提供了一种天线系统，应用于移动终端100，所述移动终端100可以为手机。所述移动终端100包括背壳1、收容于背壳1内的主板2、设置于所述背壳1与所述主板2之间的支架3以及设置于所述支架3表面的金属走线4，当然的，所述移动终端100还包括显示屏、麦克风、扬声器等部件，在此就不一一图示。
所述背壳1包括位于中间的金属部11和位于所述金属部11两端的塑料部12，所述背壳11的长度为156mm，宽度为75mm，所述塑料部12的宽度为10.5mm，所述塑料部12的宽度指所述塑料部12沿所述背壳1的长轴方向上的宽度。
所述主板2设有接地开关21和馈电点22，所述接地开关21和所述馈电点22与所述金属走线4连接，具体的，所述金属走线4通过弹脚与所述接地开关21和所述馈电点22连接。所述主板2上对应所述金属走线4的一端设有净空区5，所述净空区对应所述塑料部12设置且所述塑料部12的宽度大于所述净空区5的宽度。在本实用新型的具体实施方式中，所述净空区5的宽度为5mm，所述净空区5的宽度指所述净空区5沿所述背壳 1的长轴方向上的宽度。
所述主板2包括系统地(未图示)，所述主板2的所述系统地通过三个弹脚23与所述金属部11连接。
所述金属走线4采用LDS(激光直接成型)工艺成型于所述支架3上，所述支架3优选为塑料支架。所述金属走线4向所述主板2的正投影至少部分位于所述净空区5内，所述金属走线4包括本体部41和自所述本体部41向两侧分别延伸出产生低频谐振的第一分支411、产生高频谐振的第二分支412以及自所述本体部41延伸出第一分支411一侧延伸出产生中频谐振的第三分支413，所述第一分支411弯折形成半封闭开口，所述第三分支413包覆在所述半封闭开口中并与所述第一分支411间隔，所述接地开关21和所述馈电点22均连接所述本体部41，在本实用新型的具体实施方式中，所述本体部41呈长方形。通过设置所述第一分支411、所述第二分支412以及所述第三分支413，使得所述天线系统100在中频和高频具有两个谐振，从而使得所述天线系统100辐射频率覆盖790-960MHz和1710-2690MHz，满足实际所需。
再结合图4所示，所述背壳1包括边框13，所述边框13包括与所述金属走线4邻近的短边131和连接所述短边131并与所述金属走线4邻近的长边132，所述第一分支411包括自所述本体部41延伸并与所述短边131平行间隔设置的第一部分4111、自所述第一部分4111向所述短边131方向垂直延伸的第二部分4112、自所述第二部分4112向平行于所述短边131的两侧分别垂直延伸的第三部分4113和第四部分4114、自所述第四部分4114向所述短边131方向垂直延伸的第五部分4115、自所述第五部分4115向远离所述第四部分4114垂直延伸的第六部分4116。所述第三分支413位于所述第一部分4111与所述第四部分4114之间，且所述第三分支413与所述第一部分4111和所述第四部分4114相互平行设置。所述第一部分4111、所述第二部分4112、所述第三部分4113、所述第四部分4114、所述第五部分4115和所述第六部分4116形成所述半封闭开口。
所述第二分支412包括自所述本体部41向所述长边132方向延伸的第 七部分4121、自所述第七部分4121弯折延伸并与所述边框13形状匹配的第八部分4122、自所述第八部分4122向所述本体部41垂直延伸的第九部分4123以及自所述第九部分4123向所述第一分支411方向延伸并与所述短边131平行间隔设置的第十部分4124，所述第十部分4124位于所述本体部41和所述第六部分4116之间且与所述本体部41和所述第六部分4116间隔。
结合图5和6所示，在1710-2690MHz的中、高频段，分别产生两个谐振，同时所述天线系统100的天线效率在1710-2690MHz的中高频段较高。
本实用新型提供的所述移动终端100，包括所述的天线系统，所述移动终端100可以为手机、IPDA、电脑等各种便携式电子产品。
与相关技术相比，本实用新型提供的一种天线系统，其通过设置分别产生低频、中频和高频的三个分支，从而可在中频和高频产生两个谐振，使得所述天线系统可覆盖所需频段。
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 (10)

  1. 一种天线系统，应用于移动终端，其特征在于，所述移动终端包括背壳、收容于背壳内的主板、设置于所述背壳与所述主板之间的支架以及设置于所述支架表面的金属走线，所述主板上对应所述金属走线的一端设有净空区，所述主板设有接地开关和馈电点，所述金属走线包括本体部和自所述本体部向两侧分别延伸出产生低频谐振的第一分支和产生高频谐振的第二分支，所述金属走线还包括自所述本体部延伸出所述第一分支一侧延伸出产生中频谐振的第三分支，所述第一分支弯折形成半封闭开口，所述第三分支包覆在所述半封闭开口中并与所述第一分支间隔，所述接地开关和所述馈电点均连接所述本体部。
  2. 根据权利要求1所述的天线系统，其特征在于，所述天线系统辐射频率覆盖790-960MHz和1710-2690MHz。
  3. 根据权利要求1所述的天线系统，其特征在于，所述净空区的宽度为5mm。
  4. 根据权利要求1所述的天线系统，其特征在于，所述背壳包括位于中间的金属部和位于所述金属部两端的塑料部，所述净空区对应所述塑料部设置且所述塑料部的宽度大于所述净空区的宽度。
  5. 根据权利要求4所述的天线系统，其特征在于，所述主板通过三个弹脚与所述金属部连接。
  6. 根据权利要求1所述的天线系统，其特征在于，所述金属走线采用LDS工艺成型于所述支架上。
  7. 根据权利要求1所述的天线系统，其特征在于，所述背壳包括边框，所述边框包括与所述金属走线邻近的短边和连接所述短边并与所述金属走线邻近的长边，所述第一分支包括自所述本体部延伸并与所述短边平行间隔设置的第一部分、自所述第一部分向所述短边方向垂直延伸的第二部分、自所述第二部分向平行于所述短边的两侧分别垂直延伸的第三部分和第四部分、自所述第四部分向所述短边方向垂直延伸的第五部分及自所述第五 部分向远离所述第四部分垂直延伸的第六部分，所述第一部分、所述第二部分、所述第三部分、所述第四部分、所述第五部分和所述第六部分形成所述半封闭开口。
  8. 根据权利要求7所述的天线系统，其特征在于，所述第三分支位于所述第一部分与所述第四部分之间。
  9. 根据权利要求8所述的天线系统，其特征在于，所述第二分支包括自所述本体部向所述长边方向延伸的第七部分、自所述第七部分弯折延伸并与所述边框形状匹配的第八部分、自所述第八部分向所述本体部垂直延伸的第九部分以及自所述第九部分向所述第一分支方向延伸并与所述短边平行间隔设置的第十部分，所述第十部分位于所述本体部和所述第六部分之间且与所述本体部和所述第六部分间隔。
  10. 一种移动终端，其特征在于，包括如权利要求1-9任意一项所述的天线系统。
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