WO2020103632A1 - 天线结构及终端设备 - Google Patents

天线结构及终端设备

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Publication number
WO2020103632A1
WO2020103632A1 PCT/CN2019/112682 CN2019112682W WO2020103632A1 WO 2020103632 A1 WO2020103632 A1 WO 2020103632A1 CN 2019112682 W CN2019112682 W CN 2019112682W WO 2020103632 A1 WO2020103632 A1 WO 2020103632A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
slot
ground switch
feed
frequency
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/112682
Other languages
English (en)
French (fr)
Inventor
蒋锐
李日辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vivo Mobile Communication Co Ltd
Original Assignee
Vivo Mobile Communication Co Ltd
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 Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Publication of WO2020103632A1 publication Critical patent/WO2020103632A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
    • H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
    • 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 disclosure relates to the field of communication technology, and in particular, to an antenna structure and terminal equipment.
  • the terminal device in the related art often needs to open a gap in the long-side metal body of the whole device.
  • the location of the slit is often in an area where the palm is easily covered completely, which may result in a significant reduction in the antenna signal and even a phenomenon of gripping.
  • the signal transmission performance of the terminal device will be seriously affected, which in turn affects the user experience of the terminal device.
  • Some embodiments of the present disclosure provide an antenna structure and a terminal device, to solve the problem that the design of the antenna structure in the related art is likely to cause a significant reduction in the antenna signal and the phenomenon of gripping, which affects the signal transmission performance and the user experience of the terminal device.
  • an antenna structure including:
  • a metal body the metal body is provided with a first slit and a second slit, and a portion of the metal body between the first slit and the second slit forms an antenna radiation structure;
  • the antenna radiation structure is provided with a feed, and the feed corresponds to the antenna radiation structure between the feed point on the antenna radiation structure and the first slot is provided with a first ground switch and a second ground switch, the first ground switch, the second The grounding switch and the feed source are arranged in sequence, and the feed source corresponds to a third grounding switch on the antenna radiating structure between the feeding point on the antenna radiating structure and the second slot;
  • the distance between the first slot and the feed is greater than the distance between the second slot and the feed.
  • some embodiments of the present disclosure provide a terminal device including the above-mentioned antenna structure.
  • the first slot and the second slot are provided on the metal body, so that the metal body between the two slots forms an antenna radiation structure, a feed is provided on the antenna radiation structure, and the feed source corresponds to the antenna radiation structure
  • the first grounding switch and the second grounding switch are provided on the antenna radiation structure between the feeding point and the first slot, and the antenna radiation structure between the feeding point on the antenna radiation structure corresponding to the feed and the second slot
  • the third grounding switch in which the first grounding switch, the second grounding switch, the feed and the third grounding switch are arranged in this order.
  • the corresponding area of the antenna radiation structure forms a high frequency, low frequency or intermediate frequency antenna, and
  • the high-frequency and low-frequency antennas produce two modes of normal radiation, which can ensure that the normal radiation of the antenna reduces the occurrence of gripping, and ensures the transmission performance of the antenna signal and the user experience of the terminal device user.
  • FIG. 1 shows a schematic diagram of the antenna structure of some embodiments of the present disclosure.
  • Some embodiments of the present disclosure provide an antenna structure, as shown in FIG. 1, including:
  • the metal body 1 is provided with a first slit 11 and a second slit 12.
  • the portion of the metal body 1 located between the first slit 11 and the second slit 12 forms an antenna radiation structure 13;
  • the antenna radiation structure 13 is provided with a feed 131 corresponding to the antenna radiation structure 13 between the feeding point on the antenna radiation structure 13 and the first slot 11 is provided with a first ground switch 21 and a second ground switch 22 , The first grounding switch 21, the second grounding switch 22 and the feed 131 are arranged in this order.
  • the feed 131 corresponds to the feeding point on the antenna radiation structure 13 and the antenna radiation structure 13 between the second slot 12 is provided with a third ground Switch 23; wherein, the distance between the first slot 11 and the feed 131 is greater than the distance between the second slot 12 and the feed 131.
  • the antenna structure provided by some embodiments of the present disclosure includes a metal body 1 on which a first slit 11 and a second slit 12 are provided, wherein the first slit 11 and the second slit 12 are separated by a preset distance.
  • the portion of the metal body between the first slot 11 and the second slot 12 forms an antenna radiation structure 13.
  • a feed source 131 is provided at a preset position of the antenna radiation structure 13, and a first grounding switch 21 and a grounding switch 21 are provided on the antenna radiation structure 13 between the feed point on the antenna radiation structure 13 corresponding to the feed source 131 and the first slot 11
  • the first slot 11 and the second slot 12 are symmetrically arranged with respect to the center line of the metal body 1, and the center line is located between the feeding point on the antenna radiation structure 13 corresponding to the feed 131 and the first slot 11.
  • the distance between the first slot 11 and the feed 131 is greater than the distance between the second slot 12 and the feed 131, that is, the feed 131 corresponds to the feed point on the antenna radiation structure 13 and the first
  • the area of the antenna radiation structure 13 between the slots 11 is larger than the area of the antenna radiation structure 13 between the feed point on the antenna radiation structure 13 corresponding to the feed 131 and the second slot 12, so the A first ground switch 21 and a second ground switch 22 are provided on the antenna radiation structure 13 between the feed point and the first slot 11, and between the feed point on the antenna radiation structure 13 corresponding to the feed source 131 and the second slot 12
  • a third ground switch 23 is provided on the antenna radiating structure 13.
  • the first slot 11 and the second slot 12 are arranged symmetrically with respect to the center line of the metal body 1. Since the feed source 131 corresponds to the feeding point on the antenna radiation structure 13 and the area of the antenna radiation structure 13 between the first slot 11 is larger than the feed source 131 Corresponding to the area of the antenna radiation structure 13 between the feeding point on the antenna radiation structure 13 and the second slot 12, so that the center line of the metal body 1 is located at the feed point on the antenna radiation structure 13 corresponding to the first gap 11 In the area of the antenna radiation structure 13 between, the first ground switch 21, the second ground switch 22, the feed 131, and the third ground switch 23 are arranged in this order, and the center line of the metal body 1 can be specifically located at the antenna radiation corresponding to the feed 131 In the area of the antenna radiation structure 13 between the feeding point on the structure 13 and the second ground switch 22.
  • the feed source 131 corresponds to the metal body between the feeding point on the antenna radiating structure 13 and the second ground switch 22 to form an intermediate frequency antenna. Since the formed intermediate frequency antenna is in contact with the first slot 11 and The gap 12 does not matter much, and there will be no gripping.
  • Some embodiments of the present disclosure can realize the switching of high and low frequency antennas, and corresponding to the high and low frequency antennas can generate a first mode corresponding to the first slot and a second mode corresponding to the second slot.
  • the second mode corresponding to the second slot can be used to radiate normally to reduce the gripping phenomenon and ensure the normal radiation of the antenna, the transmission performance of the antenna signal, and the terminal device user Experience.
  • the switching of the high and low frequency antennas is determined by the frequency of the cell where the antenna structure is located.
  • the system including the antenna structure can obtain the frequency information of the current cell and control the high and low frequency of the antenna structure according to the obtained cell frequency information Switch.
  • the first ground switch 21, the second ground switch 22, and the third ground switch 23 are multi-path switches.
  • the three grounding switches in some embodiments of the present disclosure may all be multi-channel switches. According to the grounding state of different channels, the grounding switches can be controlled in different states, and thus the switching of the high and low frequency antennas can be realized to ensure the correspondence between the high and low frequency antennas.
  • the first mode and the second mode are multi-channel switches.
  • the feed 131 can correspond to the metal body between the feeding point on the antenna radiation structure 13 and the first gap 11
  • the first high-frequency antenna is formed, and the metal body between the second slot 12 and the second ground switch 22 forms the second high-frequency antenna; or the feed source 131 can correspond to the feeding point on the antenna radiation structure 13 and the first slot 11
  • the metal body between them forms a first low-frequency antenna
  • the metal body between the second slot 12 and the second ground switch 22 forms a second low-frequency antenna.
  • the feed 131 corresponds to the feed on the antenna radiation structure 13
  • the metal body between the electrical point and the first slot 11 forms a first high-frequency antenna
  • the metal body between the second slot 12 and the second ground switch 22 forms a second high-frequency antenna.
  • the first grounding switch 21 between the feed point on the antenna radiation structure 13 corresponding to the feed 131 and the first slot 11 realizes the grounding of the first path only through the first inductance
  • the feed 131 corresponds to the antenna radiation structure 13
  • the third grounding switch 23 between the feed point of the second slot 12 and the second slot 12 is grounded by the first inductor only
  • the feed source 131 corresponds to the feed point on the antenna radiating structure 13 and the first slot 11
  • the metal body region between them may form a first high-frequency antenna
  • the metal body region between the second slot 12 and the second ground switch 22 may form a second high-frequency antenna.
  • two modes can be generated by the high frequency, namely, the first high-frequency mode generated by the first slot 11, the first ground switch 21, the second ground switch 22, and the feed 131, and the second slot 12, the second ground The second high-frequency mode generated by the switch 22, the third ground switch 23, and the feed 131.
  • the metal body region between the first slot 11 and the first ground switch 21 can form a high-frequency main radiation area; in the second high-frequency mode, the second slot 12 and the third ground switch 23 The area between the metal bodies can form a high-frequency main radiation area.
  • the second high-frequency mode can be radiated normally, and when the second slot 12 is gripped, the first high-frequency mode can be radiated normally, which can solve the grip existing in the antenna design in the related art. Death phenomenon.
  • the first high-frequency mode and the second high-frequency mode work at the same time.
  • the other mode remains in the normal radiation state, which can ensure the normal radiation of the antenna and the transmission performance of the antenna signal.
  • the second ground switch 22 is grounded by the second inductance, and / or the second ground The switch 22 is grounded through the first capacitor.
  • the feed provided on the antenna radiation structure 13 corresponding to the feed 131 The second ground switch 22 between the point and the first gap 11 and arranged in sequence with the first ground switch 21 may realize the grounding of the first path only through the second inductor, or may implement the second path only through the first capacitor Grounding, or the grounding of the first path may be achieved through a second inductor and the grounding of the second path may be achieved through a first capacitor.
  • the feed 131 corresponds to the metal between the feeding point on the antenna radiation structure 13 and the first gap 11
  • the body forms a first low-frequency antenna
  • the metal body between the second slot 12 and the second ground switch 22 forms a second low-frequency antenna.
  • the feed 131 corresponds to the second grounding switch 22 between the feeding point on the antenna radiation structure 13 and the first slot 11, and the third path is grounded only by the third inductance, the feed 131 corresponds to the antenna radiation structure 13
  • the metal body region between the feed point of the and the first slot 11 may form a first low-frequency antenna
  • the metal body region between the second slot 12 and the second ground switch 22 may form a second low-frequency antenna.
  • the low frequency can generate two modes, namely the first low frequency mode generated by the first slot 11, the first ground switch 21, the second ground switch 22, and the feed 131, and the second slot 12, the second ground The second low frequency mode generated by the switch 22, the third ground switch 23, and the feed 131. Therefore, when the first slot 11 is gripped, the second low-frequency mode can be radiated normally. When the second slot 12 is gripped, the first low-frequency mode can be radiated normally, which can solve the problem of antenna design in the related art. Of death.
  • the first low-frequency mode and the second low-frequency mode work at the same time.
  • the other mode remains in the normal radiation state, which can ensure the normal radiation of the antenna and the transmission of the antenna signal performance.
  • the first low-frequency mode is the mode corresponding to the first low-frequency antenna
  • the second low-frequency mode is the mode corresponding to the second low-frequency antenna
  • the first high-frequency mode is corresponding to the first high-frequency antenna
  • the second high-frequency mode is the mode corresponding to the second high-frequency antenna.
  • the third ground switch 23 is grounded through the fourth inductor, and the first ground switch 21 is grounded through the fourth inductor; and / or, the third The ground switch 23 is grounded by the second capacitor, and the first ground switch 21 is grounded by the second capacitor.
  • the third grounding switch 23 may implement the grounding of the second path only through the fourth inductor, and the first grounding switch 21 may implement the first grounding switch 21 only.
  • the second path is grounded; or the third ground switch 23 can be grounded by the second capacitor only, and the first ground switch 21 can be grounded by the second capacitor only; or the third ground switch 23 can be grounded by the second capacitor
  • Four inductors realize the grounding of the second path, the first grounding switch 21 realizes the grounding of the second path through the fourth inductance, and the third grounding switch 23 realizes the grounding of the third path through the second capacitor, and the first grounding switch 21 passes the second The capacitor realizes the grounding of the third path.
  • the radiation frequency bands of the first low-frequency antenna and the second low-frequency antenna are switched to the preset frequency band. That is, when the third grounding switch 23 realizes the grounding of the third path through the second capacitor and the first grounding switch 21 realizes the grounding of the third path through the second capacitor, the feed source 131 corresponds to the feeding point on the antenna radiation structure 13 and the first The first low-frequency antenna between the slot 11 and the second low-frequency antenna between the second slot 12 and the second ground switch 22 can be switched to a preset frequency band for radiation, so as to realize the tuning of the antenna radiation frequency band.
  • the first path, the second path, and the third path in some embodiments of the present disclosure are not specific, and the state of the grounding switch is determined by the corresponding inductance and / or capacitance, and has nothing to do with which path.
  • the first grounding switch 21 needs to be grounded through the first inductance
  • the third grounding switch 23 is grounded through the first inductance, and it is not clear which path is adopted.
  • the specifications of the first inductor, the second inductor, and the third inductor are different, and the specifications of the corresponding first capacitor and the second capacitor are also different.
  • the first ground switch 21 and the third ground switch 23 are both in the ground state through the first inductor, and the first gap 11 and the first ground switch
  • the metal body region between 21 may form a main radiation region; the metal body region between the second slot 12 and the third ground switch 23 may form a main radiation region.
  • the second ground switch 22 is in the ground state through the third inductor, and the feed 131 corresponds to the metal body between the feeding point on the antenna radiation structure 13 and the first slot 11 to form a low-frequency radiation area;
  • the metal body between the gap 12 and the second ground switch 22 forms a low-frequency radiation area.
  • the distance corresponding to the main high-frequency radiation area can be determined as the length of the high-frequency antenna, and the distance corresponding to the low-frequency radiation area can be determined as the length of the low-frequency antenna, so the length of the high-frequency antenna is less than the length of the low-frequency antenna, which can meet the antenna required for high-frequency signals The principle of a shorter, longer antenna required for low-frequency signals.
  • the first slit 11 and the second slit 12 are filled with non-metallic materials.
  • the first slit 11 and the second slit 12 can be avoided There is a problem that the metal material affects the performance of the antenna structure.
  • the metal body 1 includes a first part and a second part arranged in parallel, a third part located between the first part and the second part, and connecting the third part and the second part A part of the first arc, a second arc connecting the third part and the second part; a first slit 11 is formed at the junction of the first part and the first arc, a second slit 12 is formed at the second part and the second At the boundary of the arc, the first ground switch 21, the second ground switch 22, the feed 131, and the third ground switch 23 are arranged in this order, and are formed on the third portion.
  • the metal body 1 provided by some embodiments of the present disclosure includes a first part and a second part parallel to each other, located at the same end of the first part and the second part, and a third part between the first part and the second part, wherein The third part is perpendicular to the first part and the second part.
  • the first part, the second part, and the third part can form a rectangular shape, and the first part and the second part are identical, and the first circle connecting the third part and the first part
  • the arc and the second arc connecting the third part and the second part.
  • the first arc is in contact with one end of the first part and the third part, respectively, and the second arc is in contact with the other end of the second part and the third part, respectively.
  • the first slit 11 is provided at the boundary between the first part and the first arc
  • the second slit 12 is formed at the boundary between the second part and the second arc
  • the third between the first slit 11 and the second slit 12 The first ground switch 21, the second ground switch 22, the feed 131, and the third ground switch 23 are sequentially arranged on the part.
  • the above-mentioned form of the antenna structure can be matched with the structure of the terminal device in the related art.
  • the form of the antenna structure is not limited to this, and can be modified according to the structure of the applied terminal device.
  • Some embodiments of the present disclosure also provide a terminal device, including the above-mentioned antenna structure.
  • the metal body between the first slot and the second slot forms an antenna radiation structure
  • a feed is provided on the antenna radiation structure
  • the feed source corresponds to the antenna radiation structure
  • the first grounding switch and the second grounding switch are provided on the antenna radiation structure between the feeding point and the first slot, and the antenna radiation structure between the feeding point on the antenna radiation structure corresponding to the feed and the second slot
  • a third grounding switch wherein the first grounding switch, the second grounding switch, the feed and the third grounding switch are arranged in sequence, and the state of each grounding switch makes the corresponding area of the antenna radiation structure form a high-frequency, low-frequency or intermediate-frequency antenna, and
  • two modes of normal radiation can be generated, which can ensure that the normal radiation of the antenna reduces the occurrence of gripping, and ensures the transmission performance of the antenna signal and the user experience of the terminal device user.
  • the terminal device of some embodiments of the present disclosure may be a mobile phone, a tablet computer, a personal digital processor, an in-vehicle computer, a laptop computer, or a navigator.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

本公开提供了一种天线结构及终端设备，其中天线结构包括金属体，金属体上设置第一缝隙和第二缝隙，金属体位于两缝隙之间的部分形成天线辐射结构；天线辐射结构上设置有馈源，馈源对应天线辐射结构上的馈电点与第一缝隙之间的天线辐射结构上设置有第一和第二接地开关，第一接地开关、第二接地开关以及馈源依次排列，馈源对应天线辐射结构上的馈电点与第二缝隙之间的天线辐射结构上设置有第三接地开关；第一缝隙与馈源之间的距离大于第二缝隙与馈源之间的距离。

Description

天线结构及终端设备
相关申请的交叉引用
本申请主张在2018年11月22日在中国提交的中国专利申请号No.201811398174.2的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种天线结构及终端设备。
背景技术
相关技术中的终端设备为了保证良好的信号体验以及整机的美观，往往需要在整机的长边金属体上开设缝隙。但是在终端设备的长边金属体上开设缝隙时，缝隙所在的位置往往处于手掌容易完全覆盖的区域，从而会导致天线信号大幅度降低，甚至出现握死现象。此时终端设备的信号传输性能会受到严重影响，进而影响终端设备用户的使用体验。
发明内容
本公开的一些实施例提供一种天线结构及终端设备，以解决相关技术中天线结构的设计易导致天线信号大幅度降低，出现握死现象，影响信号传输性能和终端设备用户使用体验的问题。
为了解决上述问题，本公开的一些实施例是这样实现的：
第一方面，本公开的一些实施例提供一种天线结构，包括：
金属体，金属体上设置有第一缝隙和第二缝隙，金属体位于第一缝隙与第二缝隙之间的部分形成天线辐射结构；
天线辐射结构上设置有馈源，馈源对应天线辐射结构上的馈电点与第一缝隙之间的天线辐射结构上设置有第一接地开关和第二接地开关，第一接地开关、第二接地开关以及馈源依次排列，馈源对应天线辐射结构上的馈电点与第二缝隙之间的天线辐射结构上设置有第三接地开关；
其中，第一缝隙与馈源之间的距离大于第二缝隙与馈源之间的距离。
第二方面，本公开的一些实施例提供一种终端设备，包括上述的天线结构。
本公开技术方案，通过在金属体上设置第一缝隙和第二缝隙，使得两缝隙之间的金属体形成天线辐射结构，在天线辐射结构上设置馈源，并在馈源对应天线辐射结构上的馈电点与第一缝隙之间的天线辐射结构上设置第一接地开关和第二接地开关，在馈源对应天线辐射结构上的馈电点与第二缝隙之间的天线辐射结构上设置第三接地开关，其中第一接地开关、第二接地开关、馈源以及第三接地开关依次排列，通过接地开关的状态，使得天线辐射结构的对应区域形成高频、低频或者中频天线，并针对高频和低频天线产生两个可正常辐射的模态，可以保证天线的正常辐射减少握死现象的发生，保证天线信号的传输性能和终端设备用户的使用体验。
附图说明
下面将结合本公开的一些实施例中的附图，对本公开的一些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公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，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，都属于本公开保护的范围。
图1表示本公开的一些实施例天线结构示意图。
具体实施方式
下面将结合本公开的一些实施例中的附图，对本公开的一些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公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，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，都属于本公开保护的范围。
本公开的一些实施例提供一种天线结构，如图1所示，包括：
金属体1，金属体1上设置第一缝隙11和第二缝隙12，金属体1位于第一缝隙11与第二缝隙12之间的部分形成天线辐射结构13；
天线辐射结构13上设置有馈源131，馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的天线辐射结构13上设置有第一接地开关21和第二接地开关22，第一接地开关21、第二接地开关22以及馈源131依次排列，馈源131对应天线辐射结构13上的馈电点与第二缝隙12之间的天线辐射结构13上设置有第三接地开关23；其中，第一缝隙11与馈源131之间的距离大于第二缝隙12与馈源131之间的距离。
本公开的一些实施例提供的天线结构包括金属体1，在金属体1上设置有第一缝隙11和第二缝隙12，其中第一缝隙11与第二缝隙12之间间隔预设距离。位于第一缝隙11与第二缝隙12之间的金属体部分形成天线辐射结构13。
在天线辐射结构13的预设位置设置有馈源131，在馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的天线辐射结构13上设置有第一接地开关21和第二接地开关22，其中第一接地开关21、第二接地开关22以及馈源131依次排列；在馈源131对应天线辐射结构13上的馈电点与第二缝隙12之间的天线辐射结构13上设置有第三接地开关23。
其中，第一缝隙11和第二缝隙12关于金属体1的中心线对称设置，中心线位于馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间。
本公开的一些实施例中第一缝隙11与馈源131之间的距离大于第二缝隙12与馈源131之间的距离，即馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的天线辐射结构13区域大于馈源131对应天线辐射结构13上的馈电点与第二缝隙12之间的天线辐射结构13区域，因此在馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的天线辐射结构13上设置第一接地开关21和第二接地开关22，在馈源131对应天线辐射结构13上的馈电点与第二缝隙12之间的天线辐射结构13上设置第三接地开关23。第一缝隙11与第二缝隙12关于金属体1的中心线对称设置，由于馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的天线辐射结构13区域大于馈源131对应天线辐射结构13上的馈电点与第二缝隙12之间的天线辐射结构13区域，使得金属体1的中心线位于馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的天线辐射结构13区域内，其中第一接地开关21、 第二接地开关22、馈源131以及第三接地开关23依次排列，金属体1的中心线具体可位于馈源131对应天线辐射结构13上的馈电点与第二接地开关22之间的天线辐射结构13区域内。
本公开的一些实施例中，馈源131对应天线辐射结构13上的馈电点与第二接地开关22之间的金属体形成中频天线，由于所形成的中频天线与第一缝隙11和第二缝隙12关系不大，不会出现握死现象。
本公开的一些实施例，可实现高低频天线的切换，且对应于高低频天线均可产生与第一缝隙对应的第一模态和与第二缝隙对应的第二模态，在第一缝隙出现握死现象，第一模态无法正常辐射时，可通过第二缝隙对应的第二模态进行正常辐射，以减少握死现象，保证天线的正常辐射、天线信号的传输性能以及终端设备用户的使用体验。
需要说明的是，高低频天线的切换由天线结构所处小区的频率来决定，包括天线结构的系统可以获取当前所处小区的频率信息，根据所获取的小区频率信息来控制天线结构的高低频切换。
在本公开的一些实施例中，第一接地开关21、第二接地开关22以及第三接地开关23为多通路开关。
本公开的一些实施例中的三个接地开关可均为多通路开关，根据不同通路的接地状态，可以控制接地开关处于不同的状态，进而可以实现高低频天线的切换，保证高低频天线产生对应的第一模态和第二模态。
具体的：通过调整第一接地开关21、第二接地开关22以及第三接地开关23的状态，可以使得馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的金属体形成第一高频天线，第二缝隙12与第二接地开关22之间的金属体形成第二高频天线；或者可以使得馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的金属体形成第一低频天线，第二缝隙12与第二接地开关22之间的金属体形成第二低频天线。
在本公开的一些实施例中，如图1所示，在第一接地开关21通过第一电感接地、第三接地开关23通过第一电感接地时；馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的金属体形成第一高频天线；第二缝隙12与第二接地开关22之间的金属体形成第二高频天线。
在馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的第一接地开关21，仅通过第一电感实现第一通路的接地，且馈源131对应天线辐射结构13上的馈电点与第二缝隙12之间的第三接地开关23，仅通过第一电感实现第一通路的接地时，馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的金属体区域可形成第一高频天线，第二缝隙12与第二接地开关22之间的金属体区域可形成第二高频天线。
即此时高频可以产生两个模态，分别是第一缝隙11、第一接地开关21、第二接地开关22和馈源131产生的第一高频模态，以及第二缝隙12、第二接地开关22、第三接地开关23和馈源131产生的第二高频模态。其中在第一高频模态时，第一缝隙11与第一接地开关21之间的金属体区域可形成高频主辐射区；在第二高频模态时，第二缝隙12与第三接地开关23之间的金属体区域可形成高频主辐射区。
因此当第一缝隙11出现握死现象时，第二高频模态可正常辐射，当第二缝隙12出现握死现象时，第一高频模态可正常辐射，可以解决相关技术中天线设计所存在的握死现象。
其中，第一高频模态和第二高频模态同时工作，在其中一种模态出现握死现象时，另一种模态保持在正常辐射状态，可以保证天线的正常辐射以及天线信号的传输性能。
在本公开的一些实施例中，在第一接地开关21通过第一电感接地、第三接地开关23通过第一电感接地时；第二接地开关22通过第二电感接地，和/或第二接地开关22通过第一电容接地。
在第一接地开关21仅通过第一电感实现第一通路的接地，第三接地开关23仅通过第一电感实现第一通路的接地时，设置于馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的且与第一接地开关21依次排列的第二接地开关22，可仅通过第二电感实现第一通路的接地，或者可仅通过第一电容实现第二通路的接地，或者可通过第二电感实现第一通路的接地并通过第一电容实现第二通路的接地。
在本公开的一些实施例中，如图1所示，在第二接地开关22通过第三电感接地时；馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的 金属体形成第一低频天线；第二缝隙12与第二接地开关22之间的金属体形成第二低频天线。
在馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的第二接地开关22，仅通过第三电感实现第三通路的接地时，馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的金属体区域可形成第一低频天线，第二缝隙12与第二接地开关22之间的金属体区域可形成第二低频天线。
即此时低频可以产生两个模态，分别是第一缝隙11、第一接地开关21、第二接地开关22和馈源131产生的第一低频模态，以及第二缝隙12、第二接地开关22、第三接地开关23和馈源131产生的第二低频模态。因此当第一缝隙11出现握死现象时，第二低频模态可正常辐射，当第二缝隙12出现握死现象时，第一低频模态可正常辐射，可以解决相关技术中天线设计所存在的握死现象。
其中，第一低频模态和第二低频模态同时工作，在其中一种模态出现握死现象时，另一种模态保持在正常辐射状态，可以保证天线的正常辐射以及天线信号的传输性能。
本公开的一些实施例中的第一低频模态为第一低频天线对应的模态，第二低频模态为第二低频天线对应的模态，第一高频模态为第一高频天线对应的模态，第二高频模态为第二高频天线对应的模态。
在本公开的一些实施例中，在第二接地开关22通过第三电感接地时；第三接地开关23通过第四电感接地、第一接地开关21通过第四电感接地；和/或，第三接地开关23通过第二电容接地、第一接地开关21通过第二电容接地。
在第二接地开关22仅通过第三电感实现第三通路的接地时，第三接地开关23可仅通过第四电感实现第二通路的接地，第一接地开关21可仅通过第四电感实现第二通路的接地；或者第三接地开关23可仅通过第二电容实现第三通路的接地，第一接地开关21可仅通过第二电容实现第三通路的接地；或者第三接地开关23通过第四电感实现第二通路的接地、第一接地开关21通过第四电感实现第二通路的接地，同时第三接地开关23通过第二电容实现第三通路的接地、第一接地开关21通过第二电容实现第三通路的接地。
其中，在第三接地开关23通过第二电容接地、第一接地开关21通过第二电容接地时，第一低频天线和第二低频天线的辐射频段切换至预设频段。即在第三接地开关23通过第二电容实现第三通路的接地、第一接地开关21通过第二电容实现第三通路的接地时，馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的第一低频天线、第二缝隙12与第二接地开关22之间的第二低频天线可切换至预设频段进行辐射，以实现天线辐射频段的调谐。
需要说明的是，本公开的一些实施例中的第一通路、第二通路以及第三通路并不是特指，接地开关的状态由对应的电感和/或电容决定，与哪一通路没有关系。例如，针对高频状态而言，需要第一接地开关21通过第一电感接地、第三接地开关23通过第一电感接地，对于采用哪一通路没有明确规定。其中第一电感、第二电感以及第三电感的规格不同，相应的第一电容与第二电容的规格也不相同。
在本公开的一些实施例中，如图1所示，在形成高频模态时，第一接地开关21和第三接地开关23均通过第一电感处于接地状态，第一缝隙11与第一接地开关21之间的金属体区域可形成主辐射区；第二缝隙12与第三接地开关23之间的金属体区域可形成主辐射区。在形成低频模态时，第二接地开关22通过第三电感处于接地状态，馈源131对应天线辐射结构13上的馈电点与第一缝隙11之间的金属体形成低频辐射区；第二缝隙12与第二接地开关22之间的金属体形成低频辐射区。
可以将高频主辐射区对应的距离确定为高频天线长度，将低频辐射区对应的距离确定为低频天线长度，因此高频天线长度小于低频天线长度，进而可以满足高频信号所需要的天线较短，低频信号所需要的天线较长的原理。
在本公开的一些实施例中，在第一缝隙11和第二缝隙12内填充有非金属材质，通过在两个缝隙内填充非金属材质，可以避免在第一缝隙11和第二缝隙12内出现金属材质影响天线结构性能的问题。
在本公开的一些实施例中，如图1所示，金属体1包括平行设置的第一部分和第二部分，位于第一部分和第二部分之间的第三部分，以及连接第三部分与第一部分的第一圆弧、连接第三部分与第二部分的第二圆弧；第一缝隙11形成于第一部分与第一圆弧的交界位置，第二缝隙12形成于第二部分 与第二圆弧的交界位置，第一接地开关21、第二接地开关22、馈源131以及第三接地开关23依次排列，形成于第三部分上。
本公开的一些实施例所提供的金属体1包括相互平行的第一部分和第二部分，位于第一部分与第二部分的同一端，且在第一部分和第二部分之间的第三部分，其中第三部分与第一部分和第二部分相垂直，第一部分、第二部分以及第三部分可构成矩形状，且第一部分和第二部分完全相同，以及连接第三部分与第一部分的第一圆弧、连接第三部分与第二部分的第二圆弧。第一圆弧分别与第一部分和第三部分的一端部接触，第二圆弧分别与第二部分和第三部分的另一端部接触。
第一缝隙11设置于第一部分与第一圆弧的交界位置，第二缝隙12形成于第二部分与第二圆弧的交界位置，在第一缝隙11与第二缝隙12之间的第三部分上依次设置第一接地开关21、第二接地开关22、馈源131以及第三接地开关23。
天线结构的上述形式可与相关技术中的终端设备的结构相匹配，当然天线结构的形式并不局限于此，可以根据所应用的终端设备的结构进行变形。
本公开的一些实施例还提供一种终端设备，包括上述的天线结构。
通过在金属体上设置第一缝隙和第二缝隙，使得第一缝隙与第二缝隙之间的金属体形成天线辐射结构，在天线辐射结构上设置馈源，并在馈源对应天线辐射结构上的馈电点与第一缝隙之间的天线辐射结构上设置第一接地开关和第二接地开关，在馈源对应天线辐射结构上的馈电点与第二缝隙之间的天线辐射结构上设置第三接地开关，其中第一接地开关、第二接地开关、馈源以及第三接地开关依次排列，通过各接地开关的状态，使得天线辐射结构的对应区域形成高频、低频或者中频天线，并针对高频和低频天线产生两个可正常辐射的模态，可以保证天线的正常辐射减少握死现象的发生，保证天线信号的传输性能和终端设备用户的使用体验。
本公开的一些实施例的终端设备可以为手机、平板电脑、个人数字处理器、车载电脑、手提电脑或导航仪。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见 即可。
尽管已描述了本公开的一些实施例的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本公开的一些实施例范围的所有变更和修改。
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者终端设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者终端设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者终端设备中还存在另外的相同要素。
以上所述的是本公开的优选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以作出若干改进和润饰，这些改进和润饰也在本公开的保护范围内。

Claims (11)

  1. 一种天线结构，包括：
    金属体(1)，所述金属体(1)上设置第一缝隙(11)和第二缝隙(12)，所述金属体(1)位于所述第一缝隙(11)与所述第二缝隙(12)之间的部分形成天线辐射结构(13)；
    所述天线辐射结构(13)上设置有馈源(131)，所述馈源(131)对应所述天线辐射结构(13)上的馈电点与所述第一缝隙(11)之间的所述天线辐射结构(13)上设置有第一接地开关(21)和第二接地开关(22)，所述第一接地开关(21)、所述第二接地开关(22)以及所述馈源(131)依次排列，所述馈源(131)对应所述天线辐射结构(13)上的馈电点与所述第二缝隙(12)之间的所述天线辐射结构(13)上设置有第三接地开关(23)；
    其中，所述第一缝隙(11)与所述馈源(131)之间的距离大于所述第二缝隙(12)与所述馈源(131)之间的距离。
  2. 根据权利要求1所述的天线结构，其中，所述第一缝隙(11)与所述第二缝隙(12)内填充有非金属材质。
  3. 根据权利要求1所述的天线结构，其中，所述馈源(131)对应所述天线辐射结构(13)上的馈电点与所述第二接地开关(22)之间的金属体形成中频天线。
  4. 根据权利要求1所述的天线结构，其中，所述第一接地开关(21)、所述第二接地开关(22)以及所述第三接地开关(23)为多通路开关。
  5. 根据权利要求4所述的天线结构，其中，在所述第一接地开关(21)通过第一电感接地、所述第三接地开关(23)通过第一电感接地时；
    所述馈源(131)对应所述天线辐射结构(13)上的馈电点与所述第一缝隙(11)之间的金属体形成第一高频天线；
    所述第二缝隙(12)与所述第二接地开关(22)之间的金属体形成第二高频天线。
  6. 根据权利要求5所述的天线结构，其中，在所述第一接地开关(21)通过第一电感接地、所述第三接地开关(23)通过第一电感接地时；
    所述第二接地开关(22)通过第二电感接地，和/或所述第二接地开关(22)通过第一电容接地。
  7. 根据权利要求4所述的天线结构，其中，在所述第二接地开关(22)通过第三电感接地时；
    所述馈源(131)对应所述天线辐射结构(13)上的馈电点与所述第一缝隙(11)之间的金属体形成第一低频天线；
    所述第二缝隙(12)与所述第二接地开关(22)之间的金属体形成第二低频天线。
  8. 根据权利要求7所述的天线结构，其中，在所述第二接地开关(22)通过第三电感接地时；
    所述第三接地开关(23)通过第四电感接地、所述第一接地开关(21)通过第四电感接地；和/或，所述第三接地开关(23)通过第二电容接地、所述第一接地开关(21)通过第二电容接地。
  9. 根据权利要求8所述的天线结构，其中，在所述第三接地开关(23)通过第二电容接地、所述第一接地开关(21)通过第二电容接地时，所述第一低频天线和所述第二低频天线的辐射频段切换至预设频段。
  10. 根据权利要求1所述的天线结构，其中，所述第一缝隙(11)和所述第二缝隙(12)关于所述金属体(1)的中心线对称设置，所述中心线位于所述馈源(131)对应所述天线辐射结构(13)上的馈电点与所述第一缝隙(11)之间。
  11. 一种终端设备，包括如权利要求1至10任一项所述的天线结构。
PCT/CN2019/112682 2018-11-22 2019-10-23 天线结构及终端设备 Ceased WO2020103632A1 (zh)

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