WO2023005438A1 - 天线装置及电子设备 - Google Patents

天线装置及电子设备 Download PDF

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Publication number
WO2023005438A1
WO2023005438A1 PCT/CN2022/097692 CN2022097692W WO2023005438A1 WO 2023005438 A1 WO2023005438 A1 WO 2023005438A1 CN 2022097692 W CN2022097692 W CN 2022097692W WO 2023005438 A1 WO2023005438 A1 WO 2023005438A1
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Prior art keywords
radiator
phase shifter
feed source
port
feed
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PCT/CN2022/097692
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English (en)
French (fr)
Inventor
胡兴邦
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Oppo广东移动通信有限公司
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Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2023005438A1 publication Critical patent/WO2023005438A1/zh

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    • 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
    • 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means

Definitions

  • the present application relates to the technical field of communications, and in particular to an antenna device and electronic equipment.
  • Electronic devices such as smart phones are usually equipped with multiple antennas, such as cellular antennas, Wi-Fi (Wireless Fidelity, wireless fidelity) antennas, GPS (Global Positioning System, Global Positioning System) antennas, Bluetooth antennas, etc., to achieve corresponding communication function.
  • cellular antennas such as Wi-Fi (Wireless Fidelity, wireless fidelity) antennas, GPS (Global Positioning System, Global Positioning System) antennas, Bluetooth antennas, etc.
  • Wi-Fi Wireless Fidelity, wireless fidelity
  • GPS Global Positioning System, Global Positioning System
  • Bluetooth antennas etc.
  • Embodiments of the present application provide an antenna device and an electronic device, which can adjust a pattern of the antenna device, thereby improving communication stability.
  • an antenna device including:
  • the phase shifter can change the phase of the excitation signal fed to the second radiator to adjust the pattern of the antenna device, and the pattern is composed of the first radiator and the second radiator. Radiators are formed together.
  • the embodiment of the present application also provides an electronic device, including:
  • the antenna device is installed in the housing, and the antenna device includes:
  • the first radiator is connected to the first feed
  • the second radiator is connected to the first feed through a phase shifter
  • the phase shifter can change the phase of the excitation signal fed to the second radiator to adjust the pattern of the antenna device, and the pattern is jointly formed by the first radiator and the second radiator.
  • FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a first type of antenna device provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the radiation pattern of the antenna device provided by the embodiment of the present application before the radiation pattern is adjusted.
  • FIG. 4 is a schematic diagram of a radiation pattern of an antenna device provided in an embodiment of the present application after the radiation pattern is adjusted.
  • FIG. 5 is a schematic diagram of a second structure of an antenna device provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a third structure of an antenna device provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a fourth structure of an antenna device provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a second switch of the antenna device shown in FIG. 7 .
  • An embodiment of the present application provides an electronic device.
  • the electronic device may be a device such as a smart phone or a tablet computer, and may also be a game device, an AR (Augmented Reality, augmented reality) device, a car, a data storage device, an audio playback device, a video playback device, a notebook computer, a desktop computing device, etc. .
  • FIG. 1 is a schematic structural diagram of an electronic device 100 provided by an embodiment of the present application.
  • the electronic device 100 includes a casing 10 and an antenna device 20 .
  • the antenna device 20 is installed inside the housing 10 .
  • the antenna device 20 can transmit and receive wireless signals, for example, can transmit and receive cellular signals, Wi-Fi (Wireless Fidelity, wireless fidelity) signals, Bluetooth signals, and can receive GPS (Global Positioning System, Global Positioning System) signals, etc. , to realize the corresponding communication function.
  • Wi-Fi Wireless Fidelity, wireless fidelity
  • Bluetooth signals can receive GPS (Global Positioning System, Global Positioning System) signals, etc.
  • the casing 10 includes a metal middle frame 11 and a battery cover 12 .
  • the metal middle frame 11 forms the overall frame of the electronic device 100 and is used to set the functional components of the electronic device.
  • the material of the metal middle frame 11 can be, for example, aluminum alloy, magnesium alloy and the like.
  • the battery cover 12 is connected to the metal middle frame 11 .
  • the battery cover 12 forms a rear case of the electronic device 100 .
  • FIG. 2 is a schematic structural diagram of a first type of antenna device 20 provided in an embodiment of the present application.
  • the antenna device 20 includes a first feed 21 , a first radiator 22 , a second radiator 23 , a phase shifter 24 and a first power divider 25 .
  • the first feed source 21 is configured to generate an excitation signal, for example, generate a cellular excitation signal, a Wi-Fi excitation signal, a Bluetooth excitation signal, and the like.
  • the Wi-Fi excitation signal may include an excitation signal with a frequency of 2.4 GHz and an excitation signal with a frequency of 5 GHz.
  • the first radiator 22 is connected to the first feed source 21 , so that the first feed source 21 can feed an excitation signal to the first radiator 22 .
  • the first radiator 22 may also be grounded.
  • the second radiator 23 is arranged adjacent to the first radiator 22 .
  • the second radiator 23 is connected to the first feed source 21 through a phase shifter 24 , so that the first feed source 21 can also feed an excitation signal to the second radiator 23 .
  • the second radiator 23 may also be grounded.
  • both the first radiator 22 and the second radiator 23 can be independently arranged radiators in the electronic device 100, such as through FPC (Flexible Printed Circuit, flexible circuit board), LDS (Laser Direct Structuring, laser direct structuring technology)
  • the radiators arranged in a similar manner may also be radiators formed by metal devices in the electronic device 100 .
  • the first radiator 22 is formed on the metal middle frame 11 of the electronic device 100 .
  • metal branches may be formed on the metal middle frame 11, and the first radiator 22 may be formed through the metal branches.
  • the second radiator 23 is a radiator provided by FPC or LDS.
  • a second radiator can be set between the first feed source 21 and the first radiator 22 and the second radiator 23.
  • a power divider 25 The first feed source 21 is respectively connected to the first radiator 22 and the second radiator 23 through the first power divider 25 .
  • the first feed source 21 may be respectively connected to the first radiator 22 and the phase shifter 24 through the first power divider 25 .
  • the first radiator 22 and the second radiator 23 can jointly form a radiation pattern of the antenna device 20 .
  • signal strengths in different directions are different. For example, there is a null point in the radiation pattern, and when the antenna device 20 communicates in the direction of the zero point in the radiation pattern, the signal strength is weak, which will lead to unstable communication and prone to disconnection and the like.
  • the phase shifter 24 can change the phase of the excitation signal fed into the second radiator 23, for example, change the phase of the excitation signal fed into the second radiator 23 by the first feed source 21, thereby adjusting The first radiator 22 and the second radiator 23 jointly form a radiation pattern of the antenna device 20 .
  • the electronic device 100 can control the phase shifter 24 to change the phase of the excitation signal fed to the second radiator 23, so as to adjust the pattern of the antenna device 20, so that the signal strength in the communication direction of the electronic device 100 is enhanced, thereby improving Communication stability of the electronic device 100 .
  • Fig. 3 is a schematic diagram of the antenna device 20 provided by the embodiment of the present application before adjusting the directional diagram
  • Fig. 4 is a schematic diagram of the directional diagram of the antenna device 20 provided by the embodiment of the present application after adjusting the direction diagram .
  • Wi-Fi communication is performed between the electronic device and the router.
  • the router Before the antenna device 20 adjusts the directional pattern, the router is in a weaker signal direction in the directional pattern of the electronic device, as shown in FIG. 3 , and the communication between the electronic device and the router is unstable at this time.
  • the direction diagram of the electronic device After changing the phase of the excitation signal through the phase shifter, the direction diagram of the electronic device is adjusted as shown in Figure 4. At this time, the signal strength of the communication direction of the router is enhanced, so the communication stability between the electronic device and the router can be improved. sex.
  • FIG. 5 is a second schematic structural diagram of the antenna device 20 provided in the embodiment of the present application.
  • the antenna device 20 further includes a first switch 26 .
  • the phase shifter 24 is connected to the first feed source 21 through the first switch 26 , for example, connected to the first feed source 21 through the first switch 26 and the first power divider 25 in sequence.
  • the first switch 26 can connect the first feed source 21 and the phase shifter 24 or disconnect the first feed source 21 and the phase shifter 24 .
  • the first switch 26 may be a single pole single throw switch.
  • the first switch 26 can be controlled to connect the first feed source 21 and the phase shifter 24, so that the phase shifter 24 can adjust The phase of the excitation signal fed to the second radiator 23 is used to adjust the radiation pattern of the antenna device 20 .
  • the first switch 26 can be controlled to disconnect the first feed source 21 and the phase shifter 24.
  • the phase shifter 24 can change the phase of the excitation signal fed to the second radiator 23 Therefore, when the communication signal is weak, the phase shifter 24 can be used to change the phase of the excitation signal to adjust the pattern of the antenna device 20, thereby increasing the communication signal strength in the communication direction to improve communication stability.
  • FIG. 6 is a schematic diagram of a third structure of the antenna device 20 provided in the embodiment of the present application.
  • the antenna device 20 also includes a second feed 27 , a third radiator 28 and a second power divider 29 .
  • the second feed source 27 is also configured to generate an excitation signal, for example, generate a cellular excitation signal, a Wi-Fi excitation signal, a Bluetooth excitation signal, and the like.
  • the excitation signal generated by the second feed source 27 and the excitation signal generated by the first feed source 21 are excitation signals of the same frequency band, for example, both may be cellular excitation signals, or both may be Wi-Fi excitation signals, or Both can be Bluetooth stimulus signals, and so on.
  • the third radiator 28 is adjacent to the first radiator 22 and the second radiator 23 .
  • the third radiator 28 is connected to the second feed source 27 , so that the second feed source 27 can feed an excitation signal to the third radiator 28 .
  • the third radiator 28 may also be grounded.
  • the second radiator 23 is disposed between the first radiator 22 and the third radiator 28 .
  • the third radiator 28 may also be a radiator independently set in the electronic device 100, such as a radiator set by means of FPC (Flexible Printed Circuit, flexible circuit board), LDS (Laser Direct Structuring, laser direct structuring technology) and the like. , may also be a radiator formed by a metal device in the electronic device 100 .
  • FPC Flexible Printed Circuit, flexible circuit board
  • LDS Laser Direct Structuring, laser direct structuring technology
  • the third radiator 28 is also formed on the metal middle frame 11 of the electronic device 100 .
  • metal branches may be formed on the metal middle frame 11, and the third radiator 28 may be formed through the metal branches.
  • the radiation pattern of the antenna device 20 is jointly formed by the first radiator 22 , the second radiator 23 and the third radiator 28 .
  • the first feed source 21 and the second feed source 27 can feed into the first radiator 22 and the third radiator 28 respectively. Excitation signals in the same frequency band. Therefore, the first radiator 22 and the third radiator 28 can radiate wireless signals of the same frequency band to the outside, thereby forming a MIMO (multiple input multiple output, multiple input multiple output) antenna to improve the transmission efficiency of wireless signals.
  • MIMO multiple input multiple output, multiple input multiple output
  • the second radiator 23 is also connected to a second feed 27 through a phase shifter 24 . Therefore, the second feed source 27 can feed the excitation signal to the second radiator 23 .
  • the phase shifter 24 can change the phase of the excitation signal fed to the second radiator 23 by the second feed source 27, thereby also adjusting the antenna device 20. direction map.
  • the first feed source 21 and the second feed source 27 can be connected to the second radiator 23 at the same time. At this time, the first feed source 21 and the second feed source 27 can feed into the second radiator 23 at the same time. motivating signal.
  • the phase shifter 24 can change the phase of the excitation signal fed into the second radiator 23 by the first feed source 21 and the second feed source 27 , so as to adjust the pattern of the antenna device 20 .
  • a second power splitter 29 may be provided between the second feed source 27 , the third radiator 28 and the second radiator 23 .
  • the second feed source 27 is respectively connected to the third radiator 28 and the second radiator 23 through the second power divider 29 .
  • the second feed source 27 may be respectively connected to the third radiator 28 and the phase shifter 24 through the second power divider 29 .
  • FIG. 7 is a schematic diagram of a fourth structure of the antenna device 20 provided in the embodiment of the present application.
  • the antenna device 20 also includes a second switch 31 .
  • the phase shifter 24 is connected to the first feed source 21 and the second feed source 27 through the second switch 31, for example, is connected to the first feed source 21 through the second switch 31 and the first power divider 25 in turn, and is connected to the first feed source 27 through the second switch in turn. 31.
  • the second power splitter 29 is connected to the second feed source 27 .
  • the second switch 31 can connect the first feed source 21 and the phase shifter 24 or disconnect the first feed source 21 and the phase shifter 24, and the second switch 31 can also connect the second feed source 27 and the phase shifter 24 or disconnect the second feed 27 and the phase shifter 24.
  • the second switch 31 can connect the first feed source 21 and the phase shifter 24, and simultaneously disconnect the second feed source 27 and the phase shifter 24; it can connect the second feed source 27 and the phase shifter 24, and at the same time Disconnect the first feed source 21 and the phase shifter 24; you can also connect the first feed source 21 and the phase shifter 24, and simultaneously connect the second feed source 27 and the phase shifter 24; you can also disconnect the first feed source 21 and the phase shifter 24, and disconnect the second feed 27 and the phase shifter 24 at the same time.
  • the first feed source 21 can feed the second radiator 23
  • the excitation signal is fed, and at this time the phase shifter 24 can change the excitation signal fed into the second radiator 23 by the first feed source 21 to adjust the pattern of the antenna device 20 .
  • the second switch 31 connects the second feed source 27 and the phase shifter 24 and disconnects the first feed source 21 and the phase shifter 24, the second feed source 27 can feed the excitation signal to the second radiator 23, and this The time phase shifter 24 can change the excitation signal fed into the second radiator 23 by the second feed source 27 to adjust the radiation pattern of the antenna device 20 .
  • the first feed source 21 and the second feed source 27 can simultaneously radiate to the second
  • the excitation signal is fed to the body 23
  • the phase shifter 24 can change the excitation signal fed to the second radiator 23 by the first feed source 21 and the second feed source 27 , so as to adjust the radiation pattern of the antenna device 20 .
  • FIG. 8 is a schematic structural diagram of the second switch 31 of the antenna device shown in FIG. 7 .
  • the second switch 31 includes four ports, for example, a first port 311 , a second port 312 , a third port 313 and a fourth port 314 .
  • the first port 311 is connected with the first feed source 21, for example, connected with the first feed source 21 through the first power divider 25;
  • the second port 312 is connected with the second feed source 27, for example through the second power divider 29 It is connected with the second feed source 27 ;
  • the third port 313 is grounded;
  • the fourth port 314 is connected with the phase shifter 24 .
  • the first port 311 can be connected to the fourth port 314 or the third port 313 .
  • the second port 312 can be connected to the fourth port 314 or the third port 313 .
  • the first feed source 21 and the phase shifter 24 can be connected; when the first port 311 is connected to the third port 313, the first feed source 21 can be disconnected. The source 21 and the phase shifter 24, at this time, the first port 311 is grounded.
  • the second port 312 is connected to the fourth port 314, the second feed source 27 and the phase shifter 24 can be connected; when the second port 312 is connected to the third port 313, the second feed source 27 and the phase shifter can be disconnected 24. At this moment, the second port 312 is grounded.
  • the second switch 31 may include two SPDT switches, and the two SPDT switches share two throw terminals.
  • the phase shifter 24 can change the input to the second radiator.
  • the phase of the excitation signal can be changed by the phase shifter 24 when the communication signal is weak, so as to adjust the pattern of the antenna device 20, thereby increasing the communication signal strength in the communication direction to improve communication stability.

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Abstract

一种天线装置及电子设备,天线装置包括:第一馈源;第一辐射体,与第一馈源连接;第二辐射体,第二辐射体通过移相器与第一馈源连接;移相器能够改变馈入至第二辐射体的激励信号的相位,以调整天线装置的方向图,方向图由第一辐射体和第二辐射体共同形成。

Description

天线装置及电子设备
本申请要求于2021年07月29日提交中国专利局、申请号为202110864317.X、发明名称为“天线装置及电子设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域,特别涉及一种天线装置及电子设备。
背景技术
诸如智能手机等电子设备中通常设置有多个天线,例如蜂窝天线、Wi-Fi(Wireless Fidelity,无线保真)天线、GPS(Global Positioning System,全球定位系统)天线、蓝牙天线等,以实现对应的通信功能。
发明内容
本申请实施例提供一种天线装置及电子设备,可以调整天线装置的方向图,因此能够提高通信稳定性。
第一方面,本申请实施例提供一种天线装置,包括:
第一馈源;
第一辐射体,与所述第一馈源连接;以及
第二辐射体,所述第二辐射体通过移相器与所述第一馈源连接;
其中,所述移相器能够改变馈入至所述第二辐射体的激励信号的相位,以调整所述天线装置的方向图,所述方向图由所述第一辐射体和所述第二辐射体共同形成。
第二方面,本申请实施例还提供一种电子设备,包括:
壳体;
天线装置,安装于所述壳体,所述天线装置包括:
第一馈源;
第一辐射体,与第一馈源连接;以及
第二辐射体,第二辐射体通过移相器与第一馈源连接;
其中,移相器能够改变馈入至第二辐射体的激励信号的相位,以调整天 线装置的方向图,方向图由第一辐射体和第二辐射体共同形成。
附图说明
为了更清楚地说明本申请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申请的一些实施例,对于本领域技术人员来讲,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他的附图。
图1为本申请实施例提供的电子设备的结构示意图。
图2为本申请实施例提供的天线装置的第一种结构示意图。
图3为本申请实施例提供的天线装置调整方向图之前的方向图示意。
图4为本申请实施例提供的天线装置调整方向图之后的方向图示意。
图5为本申请实施例提供的天线装置的第二种结构示意图。
图6为本申请实施例提供的天线装置的第三种结构示意图。
图7为本申请实施例提供的天线装置的第四种结构示意图。
图8为图7所示天线装置的第二开关的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述。显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域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,都属于本申请保护的范围。
本申请实施例提供一种电子设备。该电子设备可以是智能手机、平板电脑等设备,还可以是游戏设备、AR(Augmented Reality,增强现实)设备、汽车、数据存储装置、音频播放装置、视频播放装置、笔记本电脑、桌面计算设备等。参考图1,图1为本申请实施例提供的电子设备100的结构示意图。
电子设备100包括壳体10和天线装置20。天线装置20安装在壳体10内部。其中,天线装置20能够发射和接收无线信号,例如能够发射和接收蜂窝信号、Wi-Fi(Wireless Fidelity,无线保真)信号、蓝牙信号,能够接收GPS(Global Positioning System,全球定位系统)信号等,以实现对应的通信功能。
在一些实施例中,壳体10包括金属中框11和电池盖12。其中,金属中 框11形成电子设备100的整体框架,并用于设置电子设备的功能组件,例如电子设备100的摄像头、电路板、传感器等功能组件都可以设置在金属中框11上。金属中框11的材质可以为诸如铝合金、镁合金等。电池盖12与金属中框11连接。电池盖12形成电子设备100的后壳。
参考图2,图2为本申请实施例提供的天线装置20的第一种结构示意图。
天线装置20包括第一馈源21、第一辐射体22、第二辐射体23、移相器24以及第一功分器25。
其中,第一馈源21被配置为产生激励信号,例如产生蜂窝激励信号、Wi-Fi激励信号、蓝牙激励信号等。在一个实施例中,Wi-Fi激励信号可以包括频率为2.4GHz的激励信号和频率为5GHz的激励信号。
第一辐射体22与第一馈源21连接,从而第一馈源21能够向第一辐射体22馈入激励信号。在一个实施例中,第一辐射体22还可以接地。
第二辐射体23与第一辐射体22相邻设置。第二辐射体23通过移相器24与第一馈源21连接,从而第一馈源21也能够向第二辐射体23馈入激励信号。在一个实施例中,第二辐射体23也可以接地。
其中,第一辐射体22、第二辐射体23都可以为电子设备100中独立设置的辐射体,例如通过FPC(Flexible Printed Circuit,柔性电路板)、LDS(Laser Direct Structuring,激光直接成型技术)等方式设置的辐射体,也可以为通过电子设备100中的金属器件形成的辐射体。
在一些实施例中,第一辐射体22形成在电子设备100的金属中框11上。例如,可以在金属中框11上形成金属枝节,并通过金属枝节形成第一辐射体22。第二辐射体23为通过FPC或LDS方式设置的辐射体。
在一个实施例中,由于第一馈源21同时与第一辐射体22、第二辐射体23连接,因此第一馈源21与第一辐射体22、第二辐射体23之间可以设置第一功分器25。第一馈源21通过第一功分器25分别与第一辐射体22、第二辐射体23连接。例如,第一馈源21可以通过第一功分器25分别与第一辐射体22、移相器24连接。
其中,天线装置20在工作时,第一辐射体22和第二辐射体23能够共同形成天线装置20的方向图。在一个实施例中,天线装置20的方向图中,不同 方向信号强度是不同的。例如,方向图中存在零点,天线装置20在朝向方向图零点的方向通信时,由于信号强度弱,会导致通信不稳定,容易出现断流等情况。
本申请实施例中,移相器24能够改变馈入至第二辐射体23的激励信号的相位,例如改变由第一馈源21馈入至第二辐射体23的激励信号的相位,从而调整第一辐射体22和第二辐射体23共同形成的天线装置20的方向图。
在实际应用中,当电子设备100的通信不稳定,或者当电子设备100检测到通信信号弱时,说明电子设备100的通信方向为天线装置20的方向图中信号较弱的方向。此时,电子设备100可以控制移相器24改变馈入至第二辐射体23的激励信号的相位,以调整天线装置20的方向图,使电子设备100的通信方向的信号强度增强,从而提高电子设备100的通信稳定性。
例如,参考图3和图4,图3为本申请实施例提供的天线装置20调整方向图之前的方向图示意,图4为本申请实施例提供的天线装置20调整方向图之后的方向图示意。
其中,电子设备与路由器之间进行Wi-Fi通信。在天线装置20调整方向图之前,路由器处于电子设备的方向图中信号较弱的方向,如图3所示,此时电子设备与路由器之间的通信不稳定。在通过移相器改变激励信号的相位后,电子设备的方向图调整为如图4所示,此时路由器所处通信方向的信号强度增强了,因此能够提高电子设备与路由器之间的通信稳定性。
在一些实施例中,参考图5,图5为本申请实施例提供的天线装置20的第二种结构示意图。
其中,天线装置20还包括第一开关26。移相器24通过第一开关26与第一馈源21连接,例如依次通过第一开关26、第一功分器25与第一馈源21连接。第一开关26能够接通第一馈源21与移相器24或者断开第一馈源21与移相器24。例如,第一开关26可以为单刀单掷开关。
在实际应用中,当需要使用第二辐射体23,例如当电子设备100的通信不稳定时,可以控制第一开关26接通第一馈源21与移相器24,使移相器24调整馈入至第二辐射体23的激励信号的相位,以调整天线装置20的方向图。当不需要使用第二辐射体23,例如电子设备100的通信一直都很稳定时,可 以控制第一开关26断开第一馈源21与移相器24。
本申请实施例提供的天线装置20,通过在第一馈源21与第二辐射体23之间设置移相器24,移相器24能够改变馈入至第二辐射体23的激励信号的相位,因此可以在通信信号弱时通过移相器24改变激励信号的相位,以调整天线装置20的方向图,从而提高通信方向的通信信号强度,以提高通信稳定性。
在一些实施例中,参考图6,图6为本申请实施例提供的天线装置20的第三种结构示意图。
天线装置20还包括第二馈源27、第三辐射体28以及第二功分器29。
其中,第二馈源27也被配置为产生激励信号,例如产生蜂窝激励信号、Wi-Fi激励信号、蓝牙激励信号等。需要说明的是,第二馈源27产生的激励信号与第一馈源21产生的激励信号为相同频段的激励信号,例如可以都为蜂窝激励信号,也可以都为Wi-Fi激励信号,还可以都为蓝牙激励信号,等等。
第三辐射体28与第一辐射体22、第二辐射体23均相邻设置。第三辐射体28与第二馈源27连接,从而第二馈源27能够向第三辐射体28馈入激励信号。在一个实施例中,第三辐射体28也可以接地。在一些实施例中,第二辐射体23设置在第一辐射体22与第三辐射体28之间。
其中,第三辐射体28也可以为电子设备100中独立设置的辐射体,例如通过FPC(Flexible Printed Circuit,柔性电路板)、LDS(Laser Direct Structuring,激光直接成型技术)等方式设置的辐射体,也可以为通过电子设备100中的金属器件形成的辐射体。
在一些实施例中,第三辐射体28也形成在电子设备100的金属中框11上。例如,可以在金属中框11上形成金属枝节,并通过金属枝节形成第三辐射体28。
需要说明的是,天线装置20包括第三辐射体28时,天线装置20的方向图由第一辐射体22、第二辐射体23以及第三辐射体28共同形成。
在一个实施例中,天线装置20包括第一辐射体22和第三辐射体28时,第一馈源21、第二馈源27可以分别向第一辐射体22、第三辐射体28馈入相同频段的激励信号。因此,第一辐射体22和第三辐射体28能够向外界辐射相 同频段的无线信号,从而形成MIMO(multiple input multiple output,多输入多输出)天线,以提高无线信号的传输效率。
在一些实施例中,如图6所示,第二辐射体23还通过移相器24与第二馈源27连接。从而,第二馈源27能够向第二辐射体23馈入激励信号。当第二馈源27向第二辐射体23馈入激励信号时,移相器24能够改变第二馈源27馈入至第二辐射体23的激励信号的相位,从而也能够调整天线装置20的方向图。
在一些实施例中,第一馈源21、第二馈源27可以同时接通第二辐射体23,此时第一馈源21、第二馈源27能够同时向第二辐射体23馈入激励信号。移相器24能够改变由第一馈源21、第二馈源27共同馈入至第二辐射体23的激励信号的相位,以调整天线装置20的方向图。
由于第二馈源27同时与第三辐射体28和第二辐射体23连接,因此第二馈源27与第三辐射体28、第二辐射体23之间可以设置第二功分器29。第二馈源27通过第二功分器29分别与第三辐射体28、第二辐射体23连接。例如,第二馈源27可以通过第二功分器29分别与第三辐射体28、移相器24连接。
在一些实施例中,参考图7,图7为本申请实施例提供的天线装置20的第四种结构示意图。
天线装置20还包括第二开关31。移相器24通过第二开关31与第一馈源21、第二馈源27连接,例如依次通过第二开关31、第一功分器25与第一馈源21连接,依次通过第二开关31、第二功分器29与第二馈源27连接。
其中,第二开关31能够接通第一馈源21与移相器24或者断开第一馈源21与移相器24,第二开关31还能够接通第二馈源27与移相器24或者断开第二馈源27与移相器24。也即,第二开关31能够接通第一馈源21与移相器24,同时断开第二馈源27与移相器24;能够接通第二馈源27与移相器24,同时断开第一馈源21与移相器24;还能够接通第一馈源21与移相器24,同时接通第二馈源27与移相器24;也能够断开第一馈源21与移相器24,同时断开第二馈源27与移相器24。
在一个实施例中,当第二开关31接通第一馈源21与移相器24并断开第二馈源27与移相器24时,第一馈源21能够向第二辐射体23馈入激励信号, 此时移相器24能够改变第一馈源21馈入至第二辐射体23的激励信号,以调整天线装置20的方向图。当第二开关31接通第二馈源27与移相器24并断开第一馈源21与移相器24时,第二馈源27能够向第二辐射体23馈入激励信号,此时移相器24能够改变第二馈源27馈入至第二辐射体23的激励信号,以调整天线装置20的方向图。当第二开关31接通第一馈源21与移相器24并同时接通第二馈源27与移相器24时,第一馈源21和第二馈源27能够同时向第二辐射体23馈入激励信号,此时移相器24能够改变由第一馈源21和第二馈源27共同馈入至第二辐射体23的激励信号,以调整天线装置20的方向图。
在一些实施例中,参考图8,图8为图7所示天线装置的第二开关31的结构示意图。
第二开关31包括四个端口,例如包括第一端口311、第二端口312、第三端口313以及第四端口314。其中,第一端口311与第一馈源21连接,例如通过第一功分器25与第一馈源21连接;第二端口312与第二馈源27连接,例如通过第二功分器29与第二馈源27连接;第三端口313接地;第四端口314与移相器24连接。第一端口311能够接通第四端口314或第三端口313。第二端口312能够接通第四端口314或第三端口313。
在一个实施例中,第一端口311接通第四端口314时,能够接通第一馈源21与移相器24;第一端口311接通第三端口313时,能够断开第一馈源21与移相器24,此时第一端口311接地。第二端口312接通第四端口314时,能够接通第二馈源27与移相器24;第二端口312接通第三端口313时,能够断开第二馈源27与移相器24,此时第二端口312接地。
在一些实施例中,第二开关31可以包括两个单刀双掷开关,并且两个单刀双掷开关共用两个掷位端。
本申请实施例提供的天线装置20,通过在第一馈源21、第二馈源27与第二辐射体23之间设置移相器24,移相器24能够改变馈入至第二辐射体23的激励信号的相位,因此可以在通信信号弱时通过移相器24改变激励信号的相位,以调整天线装置20的方向图,从而提高通信方向的通信信号强度,以提高通信稳定性。
在本申请的描述中,需要理解的是,诸如“第一”、“第二”等术语仅用于区 分类似的对象,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。
以上对本申请实施例提供的天线装置及电子设备进行了详细介绍。本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请。同时,对于本领域的技术人员,依据本申请的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种天线装置,包括:
    第一馈源;
    第一辐射体,与所述第一馈源连接;以及
    第二辐射体,所述第二辐射体通过移相器与所述第一馈源连接;
    其中,所述移相器能够改变馈入至所述第二辐射体的激励信号的相位,以调整所述天线装置的方向图,所述方向图由所述第一辐射体和所述第二辐射体共同形成。
  2. 根据权利要求1所述的天线装置,其中,还包括第一开关,所述移相器通过所述第一开关与所述第一馈源连接,所述第一开关能够接通所述第一馈源与所述移相器或者断开所述第一馈源与所述移相器。
  3. 根据权利要求1或2所述的天线装置,其中,还包括:
    第一功分器,所述第一馈源通过所述第一功分器与所述第一辐射体、所述移相器连接。
  4. 根据权利要求1所述的天线装置,其中,还包括:
    第二馈源;
    第三辐射体,所述第三辐射体与所述第二馈源连接,所述方向图由所述第一辐射体、所述第二辐射体以及所述第三辐射体共同形成。
  5. 根据权利要求4所述的天线装置,其中,所述第二辐射体还通过所述移相器与所述第二馈源连接。
  6. 根据权利要求5所述的天线装置,其中,还包括第二开关,所述移相器通过所述第二开关与所述第一馈源、所述第二馈源连接,所述第二开关能够接通所述第一馈源与所述移相器或者断开所述第一馈源与所述移相器,所述第二开关还能够接通所述第二馈源与所述移相器或者断开所述第二馈源与所述移相器。
  7. 根据权利要求6所述的天线装置,其中,所述第二开关包括第一端口、第二端口、第三端口以及第四端口,所述第一端口与所述第一馈源连接,所述第二端口与所述第二馈源连接,所述第三端口接地,所述第四端口与所述移相器连接,所述第一端口能够接通所述第四端口或所述第三端口,所述第二端口 能够接通所述第四端口或所述第三端口。
  8. 根据权利要求5至7任一项所述的天线装置,其中,还包括:
    第一功分器,所述第一馈源通过所述第一功分器与所述第一辐射体、所述移相器连接;
    第二功分器,所述第二馈源通过所述第二功分器与所述第三辐射体、所述移相器连接。
  9. 根据权利要求4至7任一项所述的天线装置,其中,所述第二辐射体设置在所述第一辐射体与所述第三辐射体之间。
  10. 根据权利要求4至7任一项所述的天线装置,其中,所述第一辐射体和所述第三辐射体能够向外界辐射相同频段的无线信号,以形成MIMO天线。
  11. 一种电子设备,包括:
    壳体;
    天线装置,安装于所述壳体,所述天线装置包括:
    第一馈源;
    第一辐射体,与所述第一馈源连接;以及
    第二辐射体,所述第二辐射体通过移相器与所述第一馈源连接;
    其中,所述移相器能够改变馈入至所述第二辐射体的激励信号的相位,以调整所述天线装置的方向图,所述方向图由所述第一辐射体和所述第二辐射体共同形成。
  12. 根据权利要求11所述的电子设备,其中,所述壳体包括:
    金属中框,所述第一辐射体、所述第二辐射体均形成在所述金属中框上;
    电池盖,与所述金属中框连接。
  13. 根据权利要求11所述的电子设备,其中,所述天线装置还包括第一开关,所述移相器通过所述第一开关与所述第一馈源连接,所述第一开关能够接通所述第一馈源与所述移相器或者断开所述第一馈源与所述移相器。
  14. 根据权利要求11-13任一项所述的电子设备,其中,所述天线装置还包括:
    第一功分器,所述第一馈源通过所述第一功分器与所述第一辐射体、所述移相器连接。
  15. 根据权利要求11所述的电子设备,其中,所述天线装置还包括:
    第二馈源;
    第三辐射体,所述第三辐射体与所述第二馈源连接,所述方向图由所述第一辐射体、所述第二辐射体以及所述第三辐射体共同形成。
  16. 根据权利要求15所述的电子设备,其中,所述第二辐射体还通过所述移相器与所述第二馈源连接。
  17. 根据权利要求16所述的电子设备,其中,所述天线装置还包括第二开关,所述移相器通过所述第二开关与所述第一馈源、所述第二馈源连接,所述第二开关能够接通所述第一馈源与所述移相器或者断开所述第一馈源与所述移相器,所述第二开关还能够接通所述第二馈源与所述移相器或者断开所述第二馈源与所述移相器。
  18. 根据权利要求17所述的电子设备,其中,所述第二开关包括第一端口、第二端口、第三端口以及第四端口,所述第一端口与所述第一馈源连接,所述第二端口与所述第二馈源连接,所述第三端口接地,所述第四端口与所述移相器连接,所述第一端口能够接通所述第四端口或所述第三端口,所述第二端口能够接通所述第四端口或所述第三端口。
  19. 根据权利要求16-18任一项所述的电子设备,其中,所述天线装置还包括:
    第一功分器,所述第一馈源通过所述第一功分器与所述第一辐射体、所述移相器连接;
    第二功分器,所述第二馈源通过所述第二功分器与所述第三辐射体、所述移相器连接。
  20. 根据权利要求15-18任一项所述的电子设备,其中,所述第二辐射体设置在所述第一辐射体与所述第三辐射体之间;所述第一辐射体和所述第三辐射体能够向外界辐射相同频段的无线信号,以形成MIMO天线。
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EP3534459A1 (en) * 2018-03-02 2019-09-04 PC-Tel, Inc. Systems and methods for reducing signal radiation in an unwanted direction
CN208622946U (zh) * 2018-08-27 2019-03-19 京信通信系统(中国)有限公司 波束宽度可变的天线
CN112018494A (zh) * 2019-05-31 2020-12-01 华为技术有限公司 一种天线及移动终端
CN113178705A (zh) * 2021-04-13 2021-07-27 维沃移动通信有限公司 极化天线及电子设备

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