WO2022116705A1 - 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
WO2022116705A1
WO2022116705A1 PCT/CN2021/123915 CN2021123915W WO2022116705A1 WO 2022116705 A1 WO2022116705 A1 WO 2022116705A1 CN 2021123915 W CN2021123915 W CN 2021123915W WO 2022116705 A1 WO2022116705 A1 WO 2022116705A1
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WO
WIPO (PCT)
Prior art keywords
radiator
radiators
antenna device
gap
electronic device
Prior art date
Application number
PCT/CN2021/123915
Other languages
English (en)
French (fr)
Inventor
杨江燕
Original Assignee
深圳市锐尔觅移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 深圳市锐尔觅移动通信有限公司 filed Critical 深圳市锐尔觅移动通信有限公司
Priority to EP21899739.3A priority Critical patent/EP4220856A4/en
Publication of WO2022116705A1 publication Critical patent/WO2022116705A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • 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
    • 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
    • H01Q1/48—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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/10—Resonant 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
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • 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
    • 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
    • H01Q5/378—Combination of fed elements with parasitic elements
    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
    • 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 application relates to the field of communication technologies, and in particular, to an antenna device and an electronic device.
  • an electronic device can support both 4G (the 4th generation mobile communication technology, fourth generation mobile communication technology) communication and 5G (the 5th generation mobile communication technology, fifth generation mobile communication technology) communication, and 4G communication can Including multiple frequency bands, 5G communication can also include multiple frequency bands.
  • 4G the 4th generation mobile communication technology, fourth generation mobile communication technology
  • 5G the 5th generation mobile communication technology, fifth generation mobile communication technology
  • Embodiments of the present application provide an antenna device and an electronic device, which can realize the sharing of radio frequency signals of different frequency bands to a second radiator, so as to reduce the number of antennas, thereby reducing the occupancy of the layout space of the electronic device by the antennas.
  • an antenna device including:
  • the first radiator is grounded
  • a plurality of second radiators a first gap is formed between each of the second radiators and the first radiator, and each of the second radiators passes through the first gap and the first radiator
  • the body is electrically connected by electromagnetic coupling
  • each of the second radiators is used to transmit radio frequency signals of a first frequency band
  • the plurality of second radiators and the first radiators are used to jointly transmit radio frequency signals of a second frequency band.
  • an embodiment of the present application further provides an electronic device, including a housing and an antenna device, the antenna device is disposed inside the housing, and the antenna device includes:
  • the first radiator is grounded
  • a plurality of second radiators a first gap is formed between each of the second radiators and the first radiator, and each of the second radiators passes through the first gap and the first radiator
  • the body is electrically connected by electromagnetic coupling
  • each of the second radiators is used to transmit radio frequency signals of a first frequency band
  • the plurality of second radiators and the first radiators are used to jointly transmit radio frequency signals of a second frequency band.
  • FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a first structure of an antenna device provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a second structure of an antenna device provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a third structure of an antenna device provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a fourth structure of an antenna apparatus provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a fifth structure of an antenna device provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a sixth structure of an antenna device provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a seventh structure of an antenna device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a circuit board of an electronic device according to an embodiment of the present application.
  • FIG. 10 is an S-parameter curve of an antenna device provided by an embodiment of the present application.
  • FIG. 11 is an isolation curve of an antenna device provided by an embodiment of the present application.
  • FIG. 12 is an efficiency curve of an antenna device provided by an embodiment of the present application.
  • Embodiments of the present application provide an electronic device.
  • the electronic device may be a device capable of transmitting radio frequency signals, such as a smart phone, a tablet computer, and a notebook computer.
  • FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • the electronic device 100 includes a circuit board 10 , an antenna device 20 , a battery 30 and a housing 40 .
  • the casing 40 is used to form the outer contour of the electronic device 100 so as to accommodate electronic devices and functional components of the electronic device 100 , and at the same time form a seal and protect the electronic devices and functional components inside the electronic device 100 .
  • the circuit board 10 is installed inside the housing 40 .
  • the circuit board 10 may serve as the main board of the electronic device 100 .
  • a grounding point is provided on the circuit board 10 to realize the grounding of the circuit board 10 .
  • the circuit board 10 can be integrated with one or two of functional components such as a motor, a microphone, a speaker, a receiver, an earphone interface, a universal serial bus interface (USB interface), a camera, a distance sensor, an ambient light sensor, a gyroscope, and a processor. one or more.
  • the battery 30 is installed inside the case 40 .
  • the battery 30 is connected to the circuit board 10 , so that the battery 30 supplies power to the electronic device 100 .
  • the circuit board 10 may be provided with a power management circuit, and the power management circuit is used for distributing the voltage provided by the battery 30 to each electronic device in the electronic device 100 .
  • the antenna device 20 is installed inside the housing 40 and is electrically connected to the circuit board 10 .
  • the antenna device 20 may be used to transmit radio frequency signals to realize the wireless communication function of the electronic device 100 .
  • FIG. 2 is a schematic diagram of a first structure of an antenna device provided by an embodiment of the present application.
  • the antenna device 20 includes a first radiator 21 and a second radiator 22 .
  • the first radiator 21 is grounded.
  • the material of the first radiator 21 is a metal material, such as magnesium alloy or aluminum alloy.
  • the first radiator 21 may be used to transmit radio frequency signals.
  • the first radiator 21 is a symmetrical structure, the first radiator 21 includes a plurality of end portions, and the positions of the plurality of end portions should be symmetrically distributed on the periphery of the first radiator 21 , for example, if the first radiator 21 is If the radiator 21 is in a "cross" shape or a "herringbone” shape, the first radiator 21 in the "cross” shape has four ends, and the first radiator 21 in the "herringbone” shape has three ends.
  • the first radiator 21 is arranged in parallel with the circuit board 10, and the distance between the first radiator 21 and the circuit board 10 is less than or equal to 5 mm.
  • the limitation of the distance can make the performance of the antenna device 20 not affected by other Influence of conductive elements.
  • the material of the second radiator 22 is a metal material, such as magnesium alloy or aluminum alloy.
  • the second radiator 22 can also be used to transmit radio frequency signals.
  • the second radiator 22 is made of metal strips connected, for example welded or bent.
  • the number of the second radiators 22 may be multiple, and the multiple second radiators 22 are symmetrically distributed on the periphery of the first radiator 21 .
  • a first gap 25 is formed between the first radiator 21 and the second radiator 22, and the width of the first gap 25 can satisfy the electromagnetic coupling and electrical connection between the first radiator 21 and the second radiator 22, for example , the width of the first gap 25 is 0.5 mm, 1 mm or 1.5 mm.
  • the number of the second radiators 22 is the same as the number of the ends of the first radiators 21 , for example, the first radiating segment body 21 has 4 ends, and the antenna device 20 has 4 second radiators 22.
  • Each second radiator 22 is electromagnetically coupled with one end of the first radiator 21 through a first gap 25 to achieve electrical connection.
  • the electromagnetic coupling is caused by the mutual inductance between the first radiator 21 and the second radiator 22, so that the current change of one radiator affects the other radiator through mutual inductance, and the input and output of the radiator are There is a close fit and mutual influence between them, and electromagnetic coupling is generated between the second radiator 22 and the first radiator 21 through the interaction, thereby realizing electrical connection.
  • Each of the second radiators 22 is used for transmitting radio frequency signals of the first frequency band, and the mode is a quarter wavelength.
  • the radio frequency signal of the first frequency band may be the N78 frequency band of the 5G (the 5th generation mobile communication technology, fifth generation mobile communication technology) radio frequency signal.
  • the frequency range of the N78 band is 3.4GHz to 3.6GHz.
  • each second radiator 22 can transmit radio frequency signals of the first frequency band, so multiple second radiators 22 can transmit multiple radio frequency signals of the first frequency band.
  • radio frequency signal to enhance the strength of the radio frequency signal of the first frequency band.
  • 4*4 MIMO multiple-in multiple-out, multiple input multiple output
  • the plurality of second radiators 22 and the first radiators 21 are used to jointly transmit radio frequency signals of the second frequency band, and the mode is five-quarter wavelength.
  • the radio frequency signals of the second frequency band may be 5G radio frequency signals of the N79 frequency band, Among them, the frequency range of the N79 band is 4.8GHz to 4.9GHz.
  • the antenna device 20 includes a first radiator 21 and a plurality of second radiators 22, the second radiators 22 are used to transmit radio frequency signals of a first frequency band, and a plurality of second radiators
  • the body 22 and the first radiator 21 are used to jointly transmit radio frequency signals of the second frequency band, so the sharing of multiple second radiators 22 can be realized, so that the antenna device 20 can transmit at least two kinds of radio frequency signals, so it can reduce the The number of antennas of the electronic device, thereby reducing the occupation of the layout space of the electronic device by the antenna.
  • FIG. 3 is a schematic diagram of a second structure of an antenna apparatus provided by an embodiment of the present application.
  • the antenna device 20 also includes a capacitor 23, and the capacitor 23 is grounded.
  • the first radiator 21 is provided with a through hole, the capacitor 23 is arranged in the through hole, a second gap 24 is formed between the capacitor 23 and the first radiator 21, and the first radiator 21 and the capacitor 23 electromagnetically pass through the second gap 24. Coupling enables electrical connection.
  • the shape of the through hole may be any shape suitable for industrial design, such as circular, square or oval.
  • the through hole is provided at the center of the first radiator 21 .
  • the width of the second gap 24 needs to satisfy that the first radiator 21 and the capacitor 23 can be electromagnetically coupled to achieve electrical connection.
  • the width of the second gap 24 is 0.5 mm, 1 mm, or 1.5 mm, or the like.
  • the capacitor 23 Since the capacitor 23 has filtering characteristics, the isolation between each second radiator 22 for transmitting the radio frequency signals of the first frequency band can be enhanced. It can be understood that since the distances of the plurality of second radiators 22 are too close, the plurality of second radiators 22 will affect each other, which will reduce the efficiency of each second radiator 22 transmitting the radio frequency signal of the first frequency band.
  • the capacitor 23 can play a filtering role, so the capacitor 23 can enhance the isolation between the plurality of second radiators 22, thereby increasing the efficiency of each second radiator 22 in transmitting radio frequency signals of the first frequency band.
  • the distance between the through hole provided on the first radiator 21 and each end of the first radiator 21 is equal, and each end is electromagnetically coupled to one second radiator 22 through the first gap 25 . It can be understood that the distance between the through hole and each second radiator 22 is equal, so the capacitor 23 has the same enhancement effect on the isolation between the plurality of second radiators 22 for transmitting the radio frequency signal of the first frequency band.
  • Each second radiator 22 includes a first radiation segment 221 , a second radiation segment 225 and a third radiation segment 223 , and the three radiation segments are connected in sequence.
  • the third radiation segment 223 includes a first end and a second end, the first radiation segment 221 is connected to the first end of the third radiation segment 223 , and the second radiation segment 223 is connected to the second radiation segment 225 . .
  • the plurality of first radiating segments 221 and the ends of the first radiators 21 can be electromagnetically coupled through the first gap 25 to achieve electrical connection.
  • first radiating segments 221 there are four first radiating segments 221, and the first radiating segment body 21
  • each first radiating segment 221 is electrically connected to one end of the first radiator 21 through the first gap 25 .
  • FIG. 4 is a schematic diagram of a third structure of an antenna apparatus provided by an embodiment of the present application.
  • the second radiator 22 includes a plurality of third radiating segments 223 connected in sequence to form a first end and a second end.
  • the second radiator 22 includes two third radiating sections 223, and the two third radiating sections 223 are connected in sequence to form a first end and a second end, the first end is connected with the first radiating section 221, and the second end is connected with The second radiating segments 225 are connected to form the second radiator 22 together.
  • increasing or decreasing the number of the third radiating sections 223 will cause the length of the second radiator 22 to increase or decrease, and because of the different connection methods of the third radiating sections 223, such as bending connection, etc.
  • the shape of the radiator 22 changes accordingly, so the shape of the entire antenna device 20 also changes.
  • the length of the second radiator 22 can be appropriately adjusted according to the applicable resonant frequency.
  • FIG. 5 is a schematic diagram of a fourth structure of an antenna apparatus provided by an embodiment of the present application.
  • the second radiator 22 of the antenna device 20 may only include the first radiating section 221 and the second radiating section 225, but does not include the third radiating section 223 in the above embodiment.
  • the first radiation section 221 and the second radiation section 225 are connected and are perpendicular to each other.
  • One end of the first radiation segment 221 is electromagnetically coupled with the second radiator 22 through the first gap 25 to achieve electrical connection, and the other end is directly connected to one end of the second radiation segment 225 .
  • FIG. 6 is a schematic diagram of a fifth structure of an antenna device provided by an embodiment of the present application.
  • the antenna device 20 also includes a feed 23 for generating radio frequency signals.
  • Each of the second radiators 22 is electrically connected to the feed 23 . Therefore, the feed source 23 can feed the radio frequency signal to each second radiator 22, and each second radiator 22 can radiate the radio frequency signal outward, thereby transmitting the radio frequency signal of the first frequency band, and the plurality of second radiators 22 and The first radiator 21 can collectively radiate radio frequency signals of the second frequency band to the outside.
  • FIG. 7 is a schematic diagram of a sixth structure of an antenna apparatus provided by an embodiment of the present application.
  • the antenna device 20 also includes a plurality of tuning circuits 26, each tuning circuit 26 being grounded.
  • the number of tuning circuits 26 is the same as the number of second radiators 22 , and each second radiator 22 is connected to one tuning circuit 26 .
  • the tuning circuit 26 is composed of one or more tuning circuit elements, and the one or more tuning circuit elements make the tuning circuit 26 have the characteristic of adjusting the impedance, so that the frequency of the electromagnetic wave radiated by the antenna device 20 can be adjusted, for example, the elements of the tuning circuit 26 can be For resistors, capacitors, inductors, switches, etc.
  • FIG. 8 is a schematic diagram of a seventh structure of an antenna apparatus provided by an embodiment of the present application.
  • the antenna arrangement 20 also includes a plurality of third radiators 26 .
  • the number of the third radiators 26 is the same as the number of the second radiators 22 .
  • One end of each third radiator 26 is connected to one second radiator 22 , and the other end of each third radiator 26 is grounded.
  • each second radiator 22 and one third radiator 26 are used to jointly transmit radio frequency signals of the third frequency band, for example, the radio frequency signals of the third frequency band may be the N41 frequency band, wherein the frequency range of the N41 frequency band is 2.5GHz to 2.69GHz.
  • FIG. 9 is a schematic structural diagram of a circuit board of an electronic device according to an embodiment of the present application.
  • the antenna device 20 further includes a plurality of first elastic pieces 29 and a plurality of second elastic pieces 27 .
  • the plurality of first elastic pieces 29 and the plurality of second elastic pieces 27 are both disposed on the circuit board 10 .
  • the material of the first elastic piece 29 and the second elastic piece 27 is a metal material, for example, a metal material such as magnesium alloy or aluminum alloy.
  • Each of the first elastic pieces 29 is electrically connected to the ground point on the circuit board 10
  • each of the second elastic pieces 27 is electrically connected to the feed source 23 .
  • each of the first elastic pieces 29 is connected to the first radiator 21 to realize the grounding of the first radiator 21 .
  • Each of the second elastic pieces 27 is connected to a second radiator 22 , so as to realize the electrical connection between the plurality of second radiators 22 and the feed source 23 .
  • each third radiator 26 may also be electrically connected to a ground point on the circuit board 10 .
  • the shape of the first elastic piece 29 and the second elastic piece 27 may be any shape suitable for the connection between the antenna device 20 and the circuit board 10 , for example, a circle, a square or a triangle.
  • the first elastic piece 29 and the second elastic piece 27 have conductive properties and elasticity, so the first elastic piece 29 and the second elastic piece 27 can play an electrical connection role on the one hand, and have a shock-absorbing function on the other hand, which can play a protective role The role of components.
  • the first elastic piece 29 and the second elastic piece 27 are easily connected to the circuit board 10 , for example, the first elastic piece 29 and the second elastic piece 27 can be directly welded on the circuit board 10 .
  • FIG. 10 is an S-parameter curve of an antenna device provided by an embodiment of the present application.
  • two resonant frequencies can be generated, for example, one of the resonant frequencies is in the 3.3GHz to 3.8GHz band, and the other resonant frequency is in the 4.4GHz to 5GHz band
  • FIG. 11 is a graph of an isolation degree of an antenna device provided by an embodiment of the present application.
  • L1 is the isolation degree between the plurality of second radiators 22 after the capacitor 23 is provided in the antenna device 20 .
  • L2 is the isolation degree between the plurality of second radiators 22 when the capacitor 23 is not provided in the antenna device 20 .
  • FIG. 12 is an efficiency curve of an antenna device provided by an embodiment of the present application.
  • L3 is the efficiency of the second radiator 22 after the antenna device 20 is provided with the capacitor 23 ;
  • L4 is the efficiency of the second radiator 22 when the antenna device 20 is not provided with the capacitor 23 .
  • the efficiency of the second radiator 22 to radiate the radio frequency signal is improved.

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Abstract

一种天线装置及电子设备，天线装置包括第一辐射体以及多个第二辐射体，每一第二辐射体与第一辐射体之间形成有第一间隙，每一第二辐射体通过第一间隙与第一辐射体以电磁耦合实现电连接；其中，每一第二辐射体用于传输第一频段的射频信号，多个第二辐射体与第一辐射体用于共同传输第二频段的射频信号。

Description

天线装置及电子设备
本申请要求于2020年12月01日提交中国专利局、申请号为202011399314.5、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
随着通信技术的发展，诸如智能手机等电子设备能够实现的功能越来越多，电子设备的通信模式也更加多样化。例如，电子设备既可以支持4G(the 4th generation mobile communication technology，第四代移动通信技术)通信，也可以支持5G(the 5th generation mobile communication technology，第五代移动通信技术)通信，并且4G通信可以包括多个频段，5G通信也可以包括多个频段。
发明内容
本申请实施例提供一种天线装置及电子设备，可以实现不同频段射频信号对第二辐射体的共用，以减少天线数量，从而减少天线对电子设备的布局空间的占用。
第一方面，本申请实施例提供一种天线装置，包括：
第一辐射体，所述第一辐射体接地；
多个第二辐射体，每一所述第二辐射体与所述第一辐射体之间形成有第一间隙，每一所述第二辐射体通过所述第一间隙与所述第一辐射体以电磁耦合实现电连接；
其中，每一所述第二辐射体用于传输第一频段的射频信号，所述多个第二辐射体与所述第一辐射体用于共同传输第二频段的射频信号。
第二方面，本申请实施例还提供一种电子设备，包括壳体以及天线装置，所述天线装置设置在所述壳体内部，所述天线装置包括：
第一辐射体，所述第一辐射体接地；
多个第二辐射体，每一所述第二辐射体与所述第一辐射体之间形成有第一间隙，每一所述第二辐射体通过所述第一间隙与所述第一辐射体以电磁耦合实现电连接；
其中，每一所述第二辐射体用于传输第一频段的射频信号，所述多个第二辐射体与所述第一辐射体用于共同传输第二频段的射频信号。
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的第二种结构示意图。
图4为本申请实施例提供的天线装置的第三种结构示意图。
图5为本申请实施例提供的天线装置的第四种结构示意图。
图6为本申请实施例提供的天线装置的第五种结构示意图。
图7为本申请实施例提供的天线装置的第六种结构示意图。
图8为本申请实施例提供的天线装置的第七种结构示意图。
图9为本申请实施例提供的电子设备的电路板的结构示意图。
图10为本申请实施例提供的天线装置的S参数曲线。
图11为本申请实施例提供的天线装置的隔离度曲线。
图12为本申请实施例提供的天线装置的效率曲线。
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。所述电子设备可以是智能手机、平板电 脑、笔记本电脑等能够传输射频信号的设备。
参考图1，图1为本申请实施例提供的电子设备的结构示意图。
电子设备100包括电路板10、天线装置20、电池30及壳体40。
其中，壳体40用于形成电子设备100的外部轮廓，以便于容纳电子设备100的电子器件、功能组件等，同时对电子设备100内部的电子器件和功能组件形成密封和保护作用。
电路板10安装在壳体40的内部。电路板10可以作为电子设备100的主板。电路板10上设置有接地点，以实现电路板10的接地。电路板10上可以集成有马达、麦克风、扬声器、受话器、耳机接口、通用串行总线接口(USB接口)、摄像头、距离传感器、环境光传感器、陀螺仪以及处理器等功能组件中的一个、两个或多个。
电池30安装在壳体40的内部。电池30连接电路板10，以实现电池30为电子设备100供电。其中，电路板10上可以设置有电源管理电路，电源管理电路用于将电池30提供的电压分配到电子设备100中的各个电子器件。
天线装置20安装在壳体40的内部并与电路板10电连接。天线装置20可以用于传输射频信号，以实现电子设备100的无线通信功能。
参考图2，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。
天线装置20包括第一辐射体21以及第二辐射体22。
其中，第一辐射体21接地。第一辐射体21的材料为金属材料，例如镁合金或者铝合金等。第一辐射体21可以用于传输射频信号。
在一些实施例中，第一辐射体21属于对称结构，第一辐射体21包括多个端部，多个端部的位置设置应当满足在第一辐射体21周缘对称分布，例如，若第一辐射体21呈现“十”字形或者“人”字形，则呈“十”字形的第一辐射体21存在4个端部，呈“人”字形的第一辐射体21存在3个端部。
在一些实施例中，第一辐射体21与电路板10平行设置，且第一辐射体21与电路板10的距离小于或等于5毫米，对距离的限定可以使天线装置20的性能不受其他导电元件的影响。
第二辐射体22的材料为金属材料，比如镁合金或者铝合金等。第二辐射体22也可以用于传输射频信号。第二辐射体22由金属条连接制成，例如焊接连接 或弯折而成。
第二辐射体22的数量可以为多个，多个第二辐射体22在第一辐射体21的周缘对称分布。
第一辐射体21和第二辐射体22之间形成有第一间隙25，第一间隙25的宽度可以满足第一辐射体21和第二辐射体22之间能实现电磁耦合从而电连接，例如，第一间隙25的宽度为0.5毫米、1毫米或者1.5毫米等。
在一些实施例中，第二辐射体22的数量与第一辐射体21的端部的数量相同，例如，第一辐射段体21存在4个端部，天线装置20存在4个第二辐射体22，每一个第二辐射体22与第一辐射体21的一个端部之间通过第一间隙25电磁耦合以实现电连接。
可以理解的是，电磁耦合的产生是由于第一辐射体21和第二辐射体22之间存在互感，使其中一个辐射体的电流变化通过互感影响到另一个辐射体，辐射体的输入与输出之间存在紧密配合和相互影响,并通过相互作用在第二辐射体22和第一辐射体21之间产生电磁耦合，从而实现电连接。
每一第二辐射体22用于传输第一频段的射频信号，模态是四分之一波长。例如，第一频段的射频信号可以为5G(the 5th generation mobile communication technology，第五代移动通信技术)射频信号的N78频段。其中，N78频段的频率范围为3.4GHz至3.6GHz。可以理解的是，第二辐射体22的数量为多个时，每一个第二辐射体22都可以传输第一频段的射频信号，因此多个第二辐射体22可以传输多个第一频段的射频信号，以增强第一频段的射频信号的强度。例如，第二辐射体的数量为4个时，可以形成第一频段的射频信号的4*4MIMO(multiple-in multiple-out，多输入多输出)传输。
多个第二辐射体22与第一辐射体21用于共同传输第二频段的射频信号，模态为四分之五波长，例如，第二频段的射频信号可以为N79频段的5G射频信号，其中，N79频段的频率范围为4.8GHz至4.9GHz。
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。
本申请实施例提供的天线装置20中，该天线装置20包括第一辐射体21和多 个第二辐射体22，第二辐射体22用于传输第一频段的射频信号，多个第二辐射体22与所述第一辐射体21用于共同传输第二频段的射频信号，因此可以实现对多个第二辐射体22的共用，使天线装置20可以传输至少两种射频信号，因此可以减少电子设备的天线数量，从而减少天线对电子设备的布局空间的占用。
在一些实施例中，如参考图3，图3为本申请实施例提供的天线装置的第二种结构示意图。
天线装置20还包括电容23，电容23接地。
第一辐射体21上设置有通孔，电容23设置在通孔内，电容23与第一辐射体21之间形成有第二间隙24，第一辐射体21与电容23通过第二间隙24电磁耦合实现电连接。
其中，通孔的形状可以是合适于工业设计的任何形状，例如圆形，方形或者椭圆形等。通孔设置在第一辐射体21的中心位置。
其中，第二间隙24的宽度需要满足第一辐射体21和电容23能电磁耦合从而实现电连接。例如，第二间隙24的宽度为0.5毫米、1毫米或者1.5毫米等。
由于电容23具有滤波特性，所以可以增强每一第二辐射体22用于传输第一频段的射频信号之间的隔离度。可以理解的是，由于多个第二辐射体22的距离过于接近，导致多个第二辐射体22之间会互相影响，会降低每一第二辐射体22传输第一频段射频信号的效率，而电容23可以起到滤波作用，因此电容23可以增强多个第二辐射体22之间的隔离度，从而使得每一第二辐射体22传输第一频段的射频信号的效率增加。
在一些实施例中，第一辐射体21上设置的通孔与第一辐射体21的每一端部的距离相等，每一端部通过第一间隙25与一个第二辐射体22电磁耦合。可以理解的是，通孔与每一第二辐射体22的距离相等，因此电容23对用于传输第一频段射频信号的多个第二辐射体22之间的隔离度的增强作用相同。
每一第二辐射体22包括第一辐射段221、第二辐射段225和第三辐射段223，三段辐射段依次进行连接。例如，第三辐射段223包括第一端和第二端，第一辐射段221的与第三辐射段223的第一端连接，第三辐射段223的第二端与第二辐射段225连接。
其中，多个第一辐射段221与第一辐射体21的端部之间通过第一间隙25能 电磁耦合从而实现电连接，例如，第一辐射段221有4个，第一辐射段体21存在4个端部，每一第一辐射段221与第一辐射体21的一个端部之间通过第一间隙25实现电连接。
在一些实施例里，如参考图4，图4为本申请实施例提供的天线装置的第三种结构示意图。
第二辐射体22包括多个第三辐射段223，多个第三辐射段223依次连接以形成第一端和第二端。例如，第二辐射体22包括两个第三辐射段223，两个第三辐射段223依次连接，形成第一端和第二端，第一端与第一辐射段221连接，第二端与第二辐射段225连接，共同形成第二辐射体22。
其中，增加或者减小第三辐射段223的个数会导致第二辐射体22的长度增加或者减少，又因为第三辐射段223连接方式的不同，例如弯折连接等，也会导致第二辐射体22的形状随之改变，所以整个天线装置20的形状也会发生改变。
其中，同样结构的天线，工作频率越低，波长越长，则所需天线的长度也越长。所以根据所适用的谐振频率大小，可以适当调整第二辐射体22的长度。
在一些实施例里，如参考图5，图5为本申请实施例提供的天线装置的第四种结构示意图。
天线装置20的第二辐射体22可以只包括第一辐射段221和第二辐射段225，而不包括上述实施例中第三辐射段223。
其中，第一辐射段221与第二辐射段225连接，并互相垂直。
第一辐射段221的一端通过第一间隙25与第二辐射体22发生电磁耦合从而实现电连接，另一端直接与第二辐射段225的一端连接。
参考图6，图6为本申请实施例提供的天线装置的第五种结构示意图。
天线装置20还包括馈源23，馈源23用于产生射频信号。
每一第二辐射体22均与馈源23电连接。因此，馈源23可以给每一第二辐射体22馈入射频信号，每一第二辐射体22可以向外辐射射频信号，从而传输第一频段的射频信号，多个第二辐射体22与第一辐射体21可以共同向外辐射第二频段的射频信号。
参考图7，图7为本申请实施例提供的天线装置的第六种结构示意图。
天线装置20还包括多个调谐电路26，每一调谐电路26接地。调谐电路26 的数量与第二辐射体22的数量相同，每一第二辐射体22连接一个调谐电路26。
调谐电路26是由一个或者多个调谐电路元件组成，一个或者多个调谐电路元件使得调谐电路26具有调节阻抗的特性，从而可以调节天线装置20辐射的电磁波频率，例如，调谐电路26的元件可以为电阻、电容、电感、开关等。
参考图8，图8为本申请实施例提供的天线装置的第七种结构示意图。
天线装置20还包括多个第三辐射体26。
其中，第三辐射体26的数量与第二辐射体22的数量相同。每一第三辐射体26的一端与一个第二辐射体22连接，每一第三辐射体26的另一端接地。
其中，每一第二辐射体22和一个第三辐射体26用于共同传输第三频段的射频信号，例如，第三频段的射频信号可以为N41频段，其中N41频段的频率范围为2.5GHz至2.69GHz。
参考图9，图9为本申请实施例提供的电子设备的电路板的结构示意图。
天线装置20还包括多个第一弹片29和多个第二弹片27。多个第一弹片29和多个第二弹片27都设置在电路板10上。
其中，第一弹片29和第二弹片27的材质为金属材料，例如，镁合金或铝合金等金属材料。
每一第一弹片29均与电路板10上的接地点电连接，每一第二弹片27均与馈源23电连接。此外，每一第一弹片29连接第一辐射体21，以实现第一辐射体21接地。每一第二弹片27连接一个第二辐射体22，以实现多个第二辐射体22与馈源23电连接。
在一些实施例中，存在多个第三辐射体26，每一第三辐射体26也可以与电路板10上的接地点电连接。
第一弹片29和第二弹片27的形状可以是适用于天线装置20和电路板10连接的任意形状，例如，圆形，方形或者三角形。
第一弹片29和第二弹片27具有导电特性，并具有弹性，所以第一弹片29和第二弹片27一方面可以起到电连接的作用，另一方面具有避震的功能，可以起到保护零部件的作用。
第一弹片29和第二弹片27易于连接在电路板10上，例如，第一弹片29和第二弹片27可以直接焊接在电路板10上。
参考图10，图10为本申请实施例提供的天线装置的S参数曲线。
当天线装置20工作时，可以产生两个谐振频率，例如其中一个谐振频率为3.3GHz至3.8GHz频段，另一个谐振频率为4.4GHz至5GHz频段
参考图11，图11为本申请实施例提供的天线装置的隔离度曲线图。
其中，L1为天线装置20中设置电容23后，多个第二辐射体22之间的隔离度。L2为天线装置20中未设置电容23时，多个第二辐射体22之间的隔离度。
由图可知，设置有电容23后，多个第二辐射体22之间的隔离度得到改善。
参考图12，图12为本申请实施例提供的天线装置的效率曲线。
L3为天线装置20设置电容23后，第二辐射体22的效率；L4为天线装置20未设置电容23时，第二辐射体22的效率。
由图可知，在天线装置20中设置电容23后，第二辐射体22辐射射频信号的效率得到提升。
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：
    第一辐射体，所述第一辐射体接地；
    多个第二辐射体，每一所述第二辐射体与所述第一辐射体之间形成有第一间隙，每一所述第二辐射体通过所述第一间隙与所述第一辐射体以电磁耦合实现电连接；
    其中，每一所述第二辐射体用于传输第一频段的射频信号，所述多个第二辐射体与所述第一辐射体用于共同传输第二频段的射频信号。
  2. 如权利要求1所述的天线装置，其中，所述第一辐射体上设置有通孔；所述天线装置还包括电容，所述电容设置在所述通孔内，所述电容接地，所述电容与所述第一辐射体之间形成有第二间隙，所述第一辐射体与所述电容通过所述第二间隙以电磁耦合实现电连接。
  3. 如权利要求2所述的天线装置，其中，所述第一辐射体包括多个端部，每一所述端部与所述通孔之间的距离相等，每一所述端部通过所述第一间隙与所述第二辐射体电磁耦合。
  4. 如权利要求1所述的天线装置，其中，每一所述第二辐射体包括第一辐射段和第二辐射段，所述第一辐射段与所述第二辐射段连接，所述第一辐射段通过所述第一间隙与所述第一辐射体电磁耦合，所述第二辐射段用于与馈源电连接。
  5. 如权利要求4所述的天线装置，其中，每一所述第二辐射体还包括第三辐射段，所述第三辐射段包括第一端和第二端，所述第一端与所述第一辐射段连接，所述第二端与所述第二辐射段连接。
  6. 如权利要求5所述的天线装置，其中，所述第三辐射段为多个，多个所述第三辐射段依次连接以形成所述第一端和所述第二端。
  7. 如权利要求4所述的天线装置，其中，所述第二辐射段与所述第一辐射段垂直。
  8. 如权利要求1所述的天线装置，其中，还包括多个第三辐射体，每一所述第三辐射体与一个所述第二辐射体连接，每一所述第三辐射体接地，每一 所述第三辐射体用于辐射第三频段的射频信号。
  9. 如权利要求1所述的天线装置，其中，所述多个第二辐射体沿所述第一辐射体的周缘对称分布。
  10. 一种电子设备，包括壳体以及天线装置，所述天线装置设置在所述壳体内部，所述天线装置包括：
    第一辐射体，所述第一辐射体接地；
    多个第二辐射体，每一所述第二辐射体与所述第一辐射体之间形成有第一间隙，每一所述第二辐射体通过所述第一间隙与所述第一辐射体以电磁耦合实现电连接；
    其中，每一所述第二辐射体用于传输第一频段的射频信号，所述多个第二辐射体与所述第一辐射体用于共同传输第二频段的射频信号。
  11. 如权利要求10所述的电子设备，其中，所述第一辐射体上设置有通孔；
    所述天线装置还包括电容，所述电容设置在所述通孔内，所述电容接地，所述电容与所述第一辐射体之间形成有第二间隙，所述第一辐射体与所述电容通过所述第二间隙以电磁耦合实现电连接。
  12. 如权利要求11所述的电子设备，其中，所述第一辐射体包括多个端部，每一所述端部与所述通孔之间的距离相等，每一所述端部通过所述第一间隙与所述第二辐射体电磁耦合。
  13. 如权利要求10所述的电子设备，其中，每一所述第二辐射体包括第一辐射段和第二辐射段，所述第一辐射段与所述第二辐射段连接，所述第一辐射段通过所述第一间隙与所述第一辐射体电磁耦合，所述第二辐射段用于与馈源电连接。
  14. 如权利要求13所述的电子设备，其中，每一所述第二辐射体还包括第三辐射段，所述第三辐射段包括第一端和第二端，所述第一端与所述第一辐射段连接，所述第二端与所述第二辐射段连接。
  15. 如权利要求14所述的电子设备，其中，所述第三辐射段为多个，多个所述第三辐射段依次连接以形成所述第一端和所述第二端。
  16. 如权利要求13所述的电子设备，其中，所述第二辐射段与所述第一 辐射段垂直。
  17. 如权利要求10所述的电子设备，其中，还包括多个第三辐射体，每一所述第三辐射体与一个所述第二辐射体连接，每一所述第三辐射体接地，每一所述第三辐射体用于辐射第三频段的射频信号。
  18. 如权利要求10所述的电子设备，其中，所述多个第二辐射体沿所述第一辐射体的周缘对称分布。
  19. 如权利要求10所述的电子设备，其中，还包括电路板，所述电路板上设置有接地点和馈源；
    其中，所述第一辐射体与所述接地点电连接，每一所述第二辐射体与所述馈源电连接。
  20. 如权利要求19所述的电子设备，其中，所述第一辐射体与所述电路板平行设置，所述第一辐射体与所述电路板之间的距离小于或等于5毫米。
PCT/CN2021/123915 2020-12-01 2021-10-14 天线装置及电子设备 WO2022116705A1 (zh)

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