WO2021129832A1 - 天线组件及电子设备 - Google Patents

天线组件及电子设备 Download PDF

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Publication number
WO2021129832A1
WO2021129832A1 PCT/CN2020/139592 CN2020139592W WO2021129832A1 WO 2021129832 A1 WO2021129832 A1 WO 2021129832A1 CN 2020139592 W CN2020139592 W CN 2020139592W WO 2021129832 A1 WO2021129832 A1 WO 2021129832A1
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Prior art keywords
frame
metal
fracture
antenna
antenna assembly
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PCT/CN2020/139592
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English (en)
French (fr)
Inventor
李鹏鹏
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维沃移动通信有限公司
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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
Priority to KR1020227025775A priority Critical patent/KR20220116044A/ko
Priority to EP20905323.0A priority patent/EP4084218A4/en
Priority to JP2022532622A priority patent/JP2023507909A/ja
Publication of WO2021129832A1 publication Critical patent/WO2021129832A1/zh
Priority to US17/844,125 priority patent/US20220320714A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—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
    • 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
    • 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
    • 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
    • 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
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/35—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using two or more simultaneously fed points
    • 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the present invention relates to the field of communication technology, in particular to an antenna assembly and electronic equipment.
  • the commonly used solution is to design the antenna on the side frame of the electronic device, using the antenna split or not split, single or multiple fracture solutions; especially for low-frequency antenna signals, due to electrical length requirements, the low-frequency branch part needs All are set on the side border.
  • the side frame of the electronic device needs to reserve the installation positions of the power button and the volume button, so that the length of the antenna provided on the side frame is limited, especially the low-frequency branch part, and the radiation efficiency of the antenna is reduced.
  • the embodiments of the present invention provide an antenna assembly and an electronic device to solve the problem of low radiation efficiency of the existing antenna assembly.
  • the present invention is implemented as follows:
  • an embodiment of the present invention provides an antenna assembly, including: a rectangular metal frame, the metal frame includes an inner frame and an outer frame, the first frame of the outer frame is provided with a first break, the The second frame of the outer frame is provided with a second fracture, and the first fracture and the second fracture divide the outer frame into a metal antenna, and the metal antenna and the inner frame are connected by a metal connector, so The part of the metal antenna located between the metal connector and the first fracture forms a first radiation branch, and the part of the metal antenna between the metal connector and the second fracture forms a second radiation branch. Radiation branch, and the length of the first radiation branch is less than the length of the second radiation branch;
  • first frame and the second frame are two adjacent frames of the outer frame
  • the metal connecting piece and the second fracture are both located on the side where the second frame is located
  • the metal connecting piece is located between the second fracture and the first frame.
  • an embodiment of the present invention also provides an electronic device including the above-mentioned antenna assembly.
  • the metal frame includes a rectangular metal frame
  • the metal frame includes an inner frame and an outer frame
  • the first frame of the outer frame is provided with a first fracture
  • the second frame of the outer frame is provided with The second fracture
  • the first fracture and the second fracture divide the outer frame into a metal antenna
  • the metal antenna and the inner frame are connected by a metal connector
  • the metal antenna is located on the metal
  • the part between the connector and the first fracture forms a first radiation branch
  • the part of the metal antenna located between the metal connector and the second fracture forms a second radiation branch
  • the first The length of the radiating branch is less than the length of the second radiating branch; wherein, the first frame and the second frame are two adjacent frames of the outer frame, and the metal connecting piece and the second frame are adjacent to each other.
  • the fractures are all located on the side where the second frame is located, and the metal connecting piece is located between the second fracture and the first frame. In this way, by setting the second fracture of the second radiation branch downward, the intrinsic mode of the inner frame is excited, and the inner frame participates in the radiation, thereby greatly improving the radiation efficiency of the antenna assembly.
  • FIG. 1 is one of the structural schematic diagrams of an antenna assembly provided by an embodiment of the present invention
  • Fig. 2 is a second structural diagram of an antenna assembly provided by an embodiment of the present invention.
  • an embodiment of the present invention provides an antenna assembly, including: a rectangular metal frame 100, the metal frame 100 includes an inner frame 110 and an outer frame 120, and a first frame 121 of the outer frame 120 is provided There is a first fracture 130.
  • the second frame 122 of the outer frame 120 is provided with a second fracture 140.
  • the first fracture 130 and the second fracture 140 divide the outer frame 120 into a metal antenna 150.
  • the metal antenna 150 and the inner frame 110 pass through the metal
  • the connector 160 is connected, the part of the metal antenna 150 between the metal connector 160 and the first fracture 130 forms the first radiation branch 151, and the part of the metal antenna 150 between the metal connector 160 and the second fracture 140 forms the first radiation branch 151.
  • Two radiation branches 152, and the length of the first radiation branch 151 is less than the length of the second radiation branch 152;
  • the first frame 121 and the second frame 122 are two adjacent frames of the outer frame 120, the metal connection piece 160 and the second fracture 140 are both located on the side where the second frame 122 is located, and the metal connection piece 160 is located on the first frame. Between the second fracture 140 and the first frame 121.
  • the first frame 121 is the short side of the outer frame 120, and the second frame 122 is the long side of the outer frame 122.
  • the metal antenna 150 is connected to the inner frame 110 through the metal connector 160. Since the inner frame 110 is equivalent to the ground terminal, the metal connector 160 can be equivalent to the common of the first radiation branch 151 and the second radiation branch 152. Ground terminal; and because the length of the second radiation branch 152 is greater than the length of the first radiation branch 151, and the second fracture 140 of the second radiation branch 152 faces downward, the eigenmodes of the inner frame 110 can be excited, so that the inner The frame 110 also participates in radiation, thereby greatly improving the radiation efficiency of the antenna assembly.
  • the length of the first frame 121 is less than the length of the second frame 122, that is, the first frame 121 is the short frame of the outer frame 120, and the second frame 122 is the long frame of the outer frame 120;
  • the second radiation branch 152 is arranged on one side of the second frame 122 with a longer length, which can effectively increase the distribution space of the second radiation branch 152, and by setting the second fracture 140 of the second radiation branch 152 downward to excite
  • the intrinsic mode of the inner frame 110 enables the inner frame 110 to participate in radiation, which can improve the radiation efficiency of the second radiating branch 152 without increasing the length of the second radiating branch 152, so as to satisfy the installation of side buttons of electronic devices .
  • the first radiation branch 151 may be a middle and high frequency radiation branch of the antenna assembly
  • the second radiation branch 152 may be a low frequency radiation branch of the antenna assembly.
  • first gap 191 between the first radiating branch 151 and the inner frame 110, and a second gap 192 between the second radiating branch 152 and the inner frame 110.
  • the first gap 191 and the second gap 192 are provided to make A clearance area is formed between the first radiation branch 151 and the second radiation branch 152 and the inner frame 110 to achieve the purpose of improving the radiation efficiency of the antenna assembly.
  • the antenna assembly further includes a first grounding switch circuit 171, a first matching circuit 172, and a first feed source 173.
  • the first radiation branch 151 is provided with a first switch conducting portion 1511 and a first feed source conducting portion 1512.
  • the first switch lead portion 1511 is electrically connected to the first grounding switch circuit 171, and the first feed source lead portion 1512 is electrically connected to the first feed source 173 through the first matching circuit 172;
  • the first switch conducting portion 1511 is located at an end of the first radiation branch 151 close to the first break 130, and the first feed source conducting portion 1512 is located between the first switch conducting portion 1511 and the metal connector 160.
  • the antenna assembly further includes a second grounding switch circuit 181, a second matching circuit 182, and a second feed source 183.
  • the second radiation branch 152 is provided with a second switch conducting portion 1521 and a second feed source conducting portion. 1522, the second switch lead portion 1521 is electrically connected to the second grounding switch circuit 181, and the second feed source lead portion 1522 is electrically connected to the second feed source 183 through the second matching circuit 182;
  • the second switch conducting portion 1521 is located at one end of the second radiation branch 152 close to the second break 140, and the second feed source conducting portion 1522 is located between the second switch conducting portion 1521 and the metal connecting member 160.
  • the first grounding switch circuit 171 may include inductors L3/L4/L5, and the second grounding switch circuit 181 may include capacitor switches and capacitors C1/C2/C3.
  • the first radiation branch 151 may be fed by the first feed source. 173 is excited, and the second radiating branch 152 can be excited by the second feed source 183.
  • the implementation of the antenna frequency band may include:
  • the antenna resonance is in the B3 mode; the switching inductances L3/L4/L5 can respectively realize the coverage of the B1/B40/B41 frequency bands;
  • the antenna resonance is in the B8 mode; the switching capacitors C1/C2/C3 can respectively realize the coverage of the B5/B20/B28 frequency bands.
  • the dimensions of each part of the antenna assembly are designed as follows:
  • the gap between the first fracture 130 and the second fracture 140 is 1 mm;
  • the width of the metal connecting piece 160 is 1.5 mm;
  • the length of the first radiating branch 151 is 29 mm, in which the distance between the first switch conducting portion 1511 and the first break 130 is 3.5 mm, and the distance between the first switch conducting portion 1511 and the first feed source conducting portion 1512 23.5 millimeters, the distance between the first feed guiding portion 1512 and the metal connecting piece 160 is 2 millimeters;
  • the length of the second radiating branch 152 is 44.5 mm, where the distance between the second switch conducting portion 1521 and the second fracture 140 is 17 mm, and the distance between the second switch conducting portion 1521 and the second feed source conducting portion 1522 11.5 mm, the distance between the second feed guide portion 1522 and the metal connecting piece 160 is 17 mm;
  • the width of the second gap 192 is 1.5 mm, and when the antenna assembly is assembled on the whole machine, due to the existence of the display screen, the second gap 192 can be shortened to 0.5 mm.
  • the second rupture 140 of the second radiation branch 152 is arranged downward to excite the eigenmode of the inner frame 110, so that the inner frame 110 participates in radiation, thereby greatly improving the antenna The radiation efficiency of the component.
  • An embodiment of the present invention also provides an electronic device including the above-mentioned antenna assembly.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)

Abstract

本发明提供一种天线组件及电子设备，包括：呈矩形的金属框，金属框包括内框和外框，外框的第一边框设置有第一断口，外框的第二边框设置有第二断口，第一断口和第二断口将外框划分出一金属天线，金属天线与内框通过金属连接件连接，金属天线的位于金属连接件和第一断口之间的部分形成第一辐射分支，金属天线的位于金属连接件和第二断口之间的部分形成第二辐射分支，且第一辐射分支的长度小于第二辐射分支的长度；其中，第一边框和第二边框为外框的相邻的两个边框，金属连接件和第二断口均位于第二边框所在的一侧，且金属连接件位于第二断口与第一边框之间。

Description

天线组件及电子设备
相关申请的交叉引用
本申请主张在2019年12月27日在中国提交的中国专利申请号No.201911374802.8的优先权，其全部内容通过引用包含于此。
技术领域
本发明涉及通信技术领域，尤其涉及一种天线组件及电子设备。
背景技术
随着技术的发展进步，电子设备的天线空间不断被压缩，使得天线的设计难度越来越大，尤其是全频段低频天线的设计。
目前常用的解决方法是将天线设计在电子设备的侧边框，采用天线拆分或不拆分，单断口或多断口的方案；特别是针对低频天线信号，由于电长度的要求，低频分支部分需要全部设置在侧边框。然而，电子设备的侧边框需要预留电源键、音量键的安装位置，从而使得设置于侧边框的天线的长度受到限制，尤其是低频分支部分，进而导致天线的辐射效率降低。
发明内容
本发明实施例提供一种天线组件及电子设备，以解决现有的天线组件的辐射效率低的问题。
为解决上述技术问题，本发明是这样实现的：
第一方面，本发明实施例提供了一种天线组件，包括：呈矩形的金属框，所述金属框包括内框和外框，所述外框的第一边框设置有第一断口，所述外框的第二边框设置有第二断口，所述第一断口和所述第二断口将所述外框划分出一金属天线，所述金属天线与所述内框通过金属连接件连接，所述金属天线的位于所述金属连接件和所述第一断口之间的部分形成第一辐射分支，所述金属天线的位于所述金属连接件和所述第二断口之间的部分形成第二辐射分支，且所述第一辐射分支的长度小于所述第二辐射分支的长度；
其中，所述第一边框和所述第二边框为所述外框的相邻的两个边框，所述金属连接件和所述第二断口均位于所述第二边框所在的一侧，且所述金属连接件位于所述第二断口与所述第一边框之间。
第二方面，本发明实施例还提供一种电子设备，包括上述天线组件。
在本发明实施例中，包括：呈矩形的金属框，所述金属框包括内框和外框，所述外框的第一边框设置有第一断口，所述外框的第二边框设置有第二断口，所述第一断口和所述第二断口将所述外框划分出一金属天线，所述金属天线与所述内框通过金属连接件连接，所述金属天线的位于所述金属连接件和所述第一断口之间的部分形成第一辐射分支，所述金属天线的位于所述金属连接件和所述第二断口之间的部分形成第二辐射分支，且所述第一辐射分支的长度小于所述第二辐射分支的长度；其中，所述第一边框和所述第二边框为所述外框的相邻的两个边框，所述金属连接件和所述第二断口均位于所述第二边框所在的一侧，且所述金属连接件位于所述第二断口与所述第一边框之间。这样通过将第二辐射分支的第二断口朝下设置，以激发内框的本征模态，使内框参与辐射，进而可以极大的提升天线组件的辐射效率。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明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性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的天线组件的结构示意图之一；
图2是本发明实施例提供的天线组件的结构示意图之二。
具体实施方式
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，所描述的实施例是本发明一部分实施例，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作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图1和图2所示，本发明实施例提供一种天线组件，包括：呈矩形的金属框100，该金属框100包括内框110和外框120，外框120的第一边框121设置有第一断口130，外框120的第二边框122设置有第二断口140，第一断口130和第二断口140将外框120划分出一金属天线150，金属天线150与内框110通过金属连接件160连接，金属天线150的位于金属连接件160和第一断口130之间的部分形成第一辐射分支151，金属天线150的位于金属连接件160和第二断口140之间的部分形成第二辐射分支152，且第一辐射分支151的长度小于第二辐射分支152的长度；
其中，第一边框121和第二边框122为外框120的相邻的两个边框，金属连接件160和第二断口140均位于第二边框122所在的一侧，且金属连接件160位于第二断口140和第一边框121之间。第一边框121为外框120的短边，第二边框122为外框122的长边。
本实施方式中，金属天线150通过金属连接件160与内框110连接，由于内框110相当于接地端，因此金属连接件160就可以相当于第一辐射分支151和第二辐射分支152的公共接地端；且由于第二辐射分支152的长度大于第一辐射分支151的长度，以及第二辐射分支152的第二断口140朝下，可以使得内框110的本征模态被激发，使内框110也参与辐射，进而可以极大的提升天线组件的辐射效率。
可选的，第一边框121的长度小于第二边框122的长度，即第一边框121位外框120的短边框，第二边框122位外框120的长边框；这样通过将长度较长的第二辐射分支152设置在长度较长的第二边框122的一侧，可以有效增加第二辐射分支152的分布空间，而且通过将第二辐射分支152的第二断口140朝下设置，以激发内框110的本征模态，使内框110参与辐射，可以在不增加第二辐射分支152的长度的基础上，提升第二辐射分支152的辐射效率，以便满足电子设备的侧按键的安装。
其中，第一辐射分支151可以是天线组件的中高频辐射分支，第二辐射分支152可以是天线组件的低频辐射分支。通过采用本发明提供的方案，通过将第二辐射分支152的第二断口140朝下设置，以激发内框110的本征模态，使内框110参与辐射，可以使天线组件的效率提升3dB左右，低频全频 段的效率在-7dB左右。而且，通过高低频拆分方案，本发明提供的天线组件可以满足696MHZ-960MHZ，1710MHZ-2690MHZ的全频段要求，且辐射分支之间隔离度好，并可以满足产品化工程化的需求。
其中，第一辐射分支151和内框110之间具有第一间隙191，第二辐射分支152和内框110之间具有第二间隙192，通过设置第一间隙191和第二间隙192，以使第一辐射分支151和第二辐射分支152与内框110之间构成净空区，以达到提升天线组件的辐射效率的目的。
可选的，天线组件还包括第一接地开关电路171、第一匹配电路172和第一馈源173，第一辐射分支151上设置有第一开关导接部1511和第一馈源导接部1512，第一开关导接部1511与第一接地开关电路171电连接，第一馈源导接部1512通过第一匹配电路172与第一馈源173电连接；
其中，第一开关导接部1511位于第一辐射分支151上靠近第一断口130的一端，第一馈源导接部1512位于第一开关导接部1511与金属连接件160之间。
可选的，天线组件还包括第二接地开关电路181、第二匹配电路182和第二馈源183，第二辐射分支152上设置有第二开关导接部1521和第二馈源导接部1522，第二开关导接部1521与第二接地开关电路181电连接，第二馈源导接部1522通过第二匹配电路182与第二馈源183电连接；
其中，第二开关导接部1521位于第二辐射分支152上靠近第二断口140的一端，第二馈源导接部1522位于第二开关导接部1521与金属连接件160之间。
上述实施方式中，第一接地开关电路171可以包括电感L3/L4/L5，第二接地开关电路181包括电容开关可以电容C1/C2/C3，其中，第一辐射分支151可以由第一馈源173激励，第二辐射分支152可以由第二馈源183激励。
其中，天线频段的实现方式可以包括：
当第一接地开关电路171处于断开状态时，天线谐振处于B3模态；切换电感L3/L4/L5，可以分别实现B1/B40/B41频段的覆盖；
当第二接地开关电路181处于断开状态时，天线谐振处于B8模态；切换电容C1/C2/C3，可以分别实现B5/B20/B28频段的覆盖。
在本发明实施例提供的天线组件的具体实施方式中，针对宽度尺寸为73毫米、长度尺寸为157毫米的金属框100，天线组件各部分的尺寸设计如下：
第一断口130和第二断口140的断缝为1毫米；
金属连接件160的宽度为1.5毫米；
第一辐射分支151的长度为29毫米，其中，第一开关导接部1511和第一断口130之间距离3.5毫米，第一开关导接部1511和第一馈源导接部1512之间距离23.5毫米，第一馈源导接部1512和金属连接件160之间距离2毫米；
第二辐射分支152的长度为44.5毫米，其中，第二开关导接部1521和第二断口140之间距离17毫米，第二开关导接部1521和第二馈源导接部1522之间距离11.5毫米，第二馈源导接部1522和金属连接件160之间距离17毫米；
第二间隙192的宽度为1.5毫米，而当天线组件组装到整机上时，由于显示屏的存在，第二间隙192可以缩短至0.5毫米。
本发明实施例提供的天线组件，通过将第二辐射分支152的第二断口140朝下设置，以激发内框110的本征模态，使内框110参与辐射，进而可以极大的提升天线组件的辐射效率。
本发明实施例还提供一种电子设备，包括上述天线组件。
需要说明的是，上述天线组件实施例的实现方式同样适应于该电子设备的实施例中，并能达到相同的技术效果，在此不再赘述。
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本发明的保护之内。

Claims (10)

  1. 一种天线组件，包括：呈矩形的金属框，所述金属框包括内框和外框，所述外框的第一边框设置有第一断口，所述外框的第二边框设置有第二断口，所述第一断口和所述第二断口将所述外框划分出一金属天线，所述金属天线与所述内框通过金属连接件连接，所述金属天线的位于所述金属连接件和所述第一断口之间的部分形成第一辐射分支，所述金属天线的位于所述金属连接件和所述第二断口之间的部分形成第二辐射分支，且所述第一辐射分支的长度小于所述第二辐射分支的长度；
    其中，所述第一边框和所述第二边框为所述外框的相邻的两个边框，所述金属连接件和所述第二断口均位于所述第二边框所在的一侧，且所述金属连接件位于所述第二断口与所述第一边框之间。
  2. 根据权利要求1所述的天线组件，其中，所述第一边框的长度小于所述第二边框的长度。
  3. 根据权利要求2所述的天线组件，其中，还包括第一接地开关电路、第一匹配电路和第一馈源，所述第一辐射分支上设置有第一开关导接部和第一馈源导接部，所述第一开关导接部与所述第一接地开关电路电连接，所述第一馈源导接部通过所述第一匹配电路与所述第一馈源电连接。
  4. 根据权利要求3所述的天线组件，其中，所述第一开关导接部位于所述第一辐射分支上靠近所述第一断口的一端，所述第一馈源导接部位于所述第一开关导接部与所述金属连接件之间。
  5. 根据权利要求2所述的天线组件，其中，还包括第二接地开关电路、第二匹配电路和第二馈源，所述第二辐射分支上设置有第二开关导接部和第二馈源导接部，所述第二开关导接部与所述第二接地开关电路电连接，所述第二馈源导接部通过所述第二匹配电路与所述第二馈源电连接。
  6. 根据权利要求5所述的天线组件，其中，所述第二开关导接部位于所述第二辐射分支靠近所述第二断口的一端，所述第二馈源导接部位于所述第二开关导接部与所述金属连接件之间。
  7. 根据权利要求1至6中任一项所述的天线组件，其中，所述第一辐射 分支为中高频辐射分支。
  8. 根据权利要求1至6中任一项所述的天线组件，其中，所述第二辐射分支为低频辐射分支。
  9. 根据权利要求1至6中任一项所述的天线组件，其中，所述第一辐射分支与所述内框之间具有第一间隙，所述第二辐射分支与所述内框之间具有第二间隙。
  10. 一种电子设备，包括如权利要求1至9中任一项所述的天线组件。
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