WO2021249465A1 - 天线结构及电子设备 - Google Patents

天线结构及电子设备 Download PDF

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Publication number
WO2021249465A1
WO2021249465A1 PCT/CN2021/099322 CN2021099322W WO2021249465A1 WO 2021249465 A1 WO2021249465 A1 WO 2021249465A1 CN 2021099322 W CN2021099322 W CN 2021099322W WO 2021249465 A1 WO2021249465 A1 WO 2021249465A1
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WO
WIPO (PCT)
Prior art keywords
radiator
antenna structure
cover plate
radiating branch
radiating
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PCT/CN2021/099322
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English (en)
French (fr)
Inventor
孙树忠
尚岸奇
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维沃移动通信有限公司
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Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2021249465A1 publication Critical patent/WO2021249465A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—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
    • H01Q1/48—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

Definitions

  • This application relates to the field of communication technology, and in particular to an antenna structure and electronic equipment.
  • Bluetooth headsets have been widely used in the communication of electronic devices such as smart phones.
  • the Bluetooth headset due to the size of the Bluetooth headset, the Bluetooth headset has poor performance in connection speed, transmission distance, and anti-interference ability.
  • the antenna of the existing Bluetooth headset has a problem of poor signal transmission capability.
  • the embodiments of the present application provide an antenna structure and an electronic device, which can solve the problem of poor signal transmission capability of the antenna of the existing electronic device.
  • an embodiment of the present application provides an antenna structure, including: an antenna support, a first radiator, a second radiator, and a circuit board, the first radiator and the second radiator are both provided in the The antenna support, where,
  • the first radiator includes a base, and a first radiating branch and a second radiating branch extending from the base;
  • the second radiating branch is located between the first radiating branch and the second radiator, and there is a first gap between the second radiating branch and the second radiator, the second radiating branch Coupled to the second radiator;
  • the first radiator is provided with a feed point, and the feed point is electrically connected to a radio frequency circuit provided on the circuit board.
  • an embodiment of the present application also provides an electronic device including the above-mentioned antenna structure.
  • the radiation performance of the antenna structure can be effectively improved, and the radiation ability of the antenna structure in the low channel can be improved at the same time. This solves the problem that the antenna structure has a large difference in radiation performance between low channel and high channel, and improves the signal transmission capability of the antenna structure.
  • FIG. 1 is one of the structural diagrams of the antenna structure provided by the embodiment of the present application.
  • FIG. 2 is the second structural diagram of the antenna structure provided by the embodiment of the present application.
  • FIG. 3 is the third structural diagram of the antenna structure provided by the embodiment of the present application.
  • Figure 4 is a structural diagram of a circuit board provided by an embodiment of the present application.
  • FIG. 5 is a comparison data chart of TRP in free space of the antenna structure provided by an embodiment of the present application.
  • FIG. 6 is a comparison data chart of the free space TIS of the antenna structure provided by the embodiment of the present application.
  • an embodiment of the present application provides an antenna structure, including: an antenna support 10, a first radiator 20, a second radiator 30, and a circuit board 40, both of the first radiator 20 and the second radiator 30 Set on the antenna support 10;
  • the first radiator 20 includes a base 21, and a first radiating branch 22 and a second radiating branch 23 extending from the base 21;
  • the second radiating branch 23 is located between the first radiating branch 22 and the second radiator 30, and there is a first gap 61 between the second radiating branch 23 and the second radiator 30, the second radiating branch 23 and the second radiating body 30 coupling connection;
  • the first radiator 20 is provided with a feed point 24, and the feed point 24 is electrically connected to a radio frequency circuit (not shown) provided on the circuit board 40.
  • the radiation performance of the antenna structure can be effectively improved, and at the same time, the radiation ability of the antenna structure in the low channel can be improved, and The problem that the antenna structure has a large difference in radiation performance between low channel and high channel is solved, and the signal transmission capability of the antenna structure is improved.
  • the first gap 61 is set to allow the second radiating branch 23 and the second radiator 30 to be slot-coupled to realize the coupling connection between the second radiating branch 23 and the second radiator 30, thereby improving the radiation receiving performance of the antenna structure .
  • the feeding point 24 may be electrically connected to the radio frequency circuit on the circuit board 40 through an elastic sheet (not shown) to realize the signal radiation function or the signal receiving function of the antenna structure.
  • the first radiator 20 further includes a third radiating branch 25 extending from the base 21.
  • the first radiating branch 22, the second radiating branch 23, and the third radiating branch 25 are located on the base 21
  • the first radiating branch 22 is located between the second radiating branch 23 and the third radiating branch 25
  • the antenna structure further includes a third radiator 50 provided on the antenna support 10, and the third radiating branch 25 is located in the first radiation
  • the radiation performance of the antenna structure can be further effectively improved, and at the same time, the radiation ability of the antenna structure in the low channel can be further improved. , And solves the problem of the large difference between the antenna structure in low-channel and high-channel radiation performance, and further improves the signal transmission capability of the antenna structure.
  • the first radiator 20, the second radiator 30, and the third radiator 50 can be formed on the antenna support 10 by using laser direct structuring technology.
  • the first radiator 20, the second radiator 30, and the third radiator can be formed by electroless plating directly on the antenna support 10 based on the antenna support 10 that is compatible with the Bluetooth headset.
  • the radiator 50 thereby realizing that the first radiator 20, the second radiator 30, and the third radiator 50 are arranged on the antenna support 10.
  • the first radiator 20, the second radiator 30, and the third radiator 50 provided on the antenna support 10 may be antenna coatings, that is, metal coatings provided on the antenna support 10.
  • the second radiator 30 and the third radiator 50 may be arranged on the antenna support 10 in the form of an antenna patch.
  • the first radiator 20 includes a base 21, and a first radiating branch 22, a second radiating branch 23, and a third radiating branch 25 extending from the base 21, and the first radiating branch 22, the second radiating branch 23, and the third radiating branch
  • the radiating branches 25 are located on the same side of the base 21 and are distributed on the antenna support 10 at intervals.
  • the base 21, the first radiating branch 22, the second radiating branch 23 and the third radiating branch 25 are distributed on the antenna support 10 in a "mountain" shape.
  • the feeding point 24 can be arranged on the first radiating branch 22 and can be arranged on an end of the first radiating branch 22 away from the base 21.
  • the second radiator 30 and the third radiator 50 may be symmetrically arranged with respect to the first radiating branch 22 to further improve the radiation receiving performance of the antenna structure.
  • the second radiation branch 23 and the third radiation branch 25 may be symmetrically arranged with respect to the first radiation branch 22 to further improve the radiation receiving performance of the antenna structure.
  • the width of the first gap 61 ranges from 0.4 mm to 0.6 mm.
  • the second radiating branch 23 and the second radiator 30 are coupled and connected The effect is the best, and the radiation performance of the antenna structure is better.
  • the width of the second gap 62 ranges from 0.4 mm to 0.6 mm.
  • the coupling effect of the third radiating branch 25 and the third radiator 50 is Preferably, the radiation receiving performance of the antenna structure is better.
  • the circuit board 40 includes a substrate 41, and a first cover 42 and a second cover 43 provided on two opposite sides of the substrate 41; the first cover 42 and the second radiator 30 The second cover 43 and the third radiator 50 are coupled and connected, and are stacked relative to the antenna support 10;
  • the first cover 42 and the second radiator 30 there is a third gap between the first cover 42 and the second radiator 30, so that the first cover 42 and the second radiator 30 are spatially coupled, so as to realize the first cover 42 and the second radiator 30.
  • the coupling connection of the radiator 30 correspondingly, there is a fourth gap between the second cover 43 and the third radiator 50, so that the second cover 43 and the third radiator 50 are spatially coupled to realize the second cover
  • the board 43 and the second radiator 30 are coupled to each other.
  • first cover plate 42 and the second cover plate 43 are electrically connected to the grounding structure on the substrate 41, so that the first cover plate 42 and the second cover plate 43 are grounded, thereby improving the radiation receiving performance of the antenna structure.
  • the first cover plate 42 is formed by extending from the first side edge of the base plate 41
  • the second cover plate 43 is formed by extending from the second side edge of the base plate 41
  • the first side edge and the second side edge are the base plate. 41 opposite side edges.
  • the circuit board 40 can be arranged under the antenna support 10, and the first cover 42 and the second cover 43 can respectively face the second radiator 30 and the second radiator 30 provided on the antenna support 10 from two opposite sides of the substrate 41.
  • the three radiators 50 extend in the direction in which they are located, and are stacked relative to the second radiator 30 and stacked relative to the third radiator 50 respectively.
  • the shape of the first cover plate 42 can be set to be the same as the shape of the second radiator 30, and the shape of the second cover plate 43 can also be set to be the same as the shape of the third radiator 50. same.
  • the width of the third gap ranges from 0.9 mm to 1.1 mm.
  • the width of the third gap is 1 mm, the coupling between the first cover plate 42 and the second radiator 30 has a better connection effect. Makes the radiation performance of the antenna structure better.
  • the width of the fourth gap ranges from 0.9 mm to 1.1 mm.
  • the width of the fourth gap is 1 mm, the coupling between the second cover 43 and the second radiator 30 has a better connection effect, so that The radiation receiving performance of the antenna structure is better.
  • the material of the first cover plate 42 and the second cover plate 43 can be the same as the material of the substrate 41, and the first cover plate 42 and the second cover plate 43 can also be provided with circuit board wiring, so that the first cover plate 41 It is spatially coupled with the second radiator 30, and the second cover 43 and the third radiator 50 are spatially coupled.
  • the shape and size of the first cover plate 42 and the second cover plate 43 can be adjusted according to the shape and size of the antenna structure; correspondingly, the shape and size of the first radiator 20, the second radiator 30, and the third radiator 50 are also adjustable. It can be adjusted according to the shape and size of the antenna structure.
  • the free space radiation performance emission parameter (Total Radiated Power, TRP) comparison data chart of the antenna structure provided by the embodiment of the present application shows that there is a first cover plate
  • the TRP value of the antenna structure 42 and the second cover plate 43 is higher than the TRP value of the antenna structure without the first cover plate 42 and the second cover plate 43.
  • the TRP value of the antenna structure with the first cover plate 42 and the second cover plate 43 is 6.5, and the first cover plate 42 and the second cover plate 43 are not provided.
  • the TRP value of the antenna structure is 1.4; when the channel is 39, the TRP value of the antenna structure with the first cover plate 42 and the second cover plate 43 is 7, and the first cover plate 42 and the second cover plate 43 are not provided.
  • the TRP value of the antenna structure is 3.7; when the channel is 78, the TRP value of the antenna structure with the first cover plate 42 and the second cover plate 43 is 7.5, and the first cover plate 42 and the second cover plate 43 are not provided
  • the TRP value of the antenna structure is 4.8.
  • the free space radiation performance receiving parameter (Total Isotropic Sensitivity, TIS) comparison data chart of the antenna structure provided by the embodiment of the present application is based on the comparison data chart shown in FIG.
  • the absolute value of the TIS value of the antenna structure of the plate 42 and the second cover plate 43 is higher than the absolute value of the TIS value of the antenna structure without the first cover plate 42 and the second cover plate 43.
  • the TIS value of the antenna structure with the first cover plate 42 and the second cover plate 43 is -90.9, and the first cover plate 42 and the second cover plate are not provided.
  • the TIS value of the antenna structure of 43 is -85.1; when the channel is 39, the TIS value of the antenna structure with the first cover 42 and the second cover 43 is -90.8, and the first cover 42 and the second cover are not provided.
  • the TIS value of the antenna structure of the cover plate 43 is -87.7; when the channel is 78, the TIS value of the antenna structure with the first cover plate 42 and the second cover plate 43 is -91.4, and the first cover plate 42 and The TIS value of the antenna structure of the second cover 43 is -88.9.
  • An embodiment of the present application also provides an electronic device including the above-mentioned antenna structure.
  • the electronic device may be a Bluetooth headset, smart glasses, smart watches, smart bracelets, etc.
  • the antenna support of the antenna structure may be cylindrical, and the first radiator, the second radiator, and the third radiator may be distributed on the circumferential surface of the antenna support at intervals.
  • first cover plate and the second cover plate provided on the substrate of the circuit board can be formed with the substrate in a slot-shaped structure, and the antenna support can be partially located in the slot-shaped structure.
  • first cover plate may be arranged to face the second radiator
  • second cover plate may be arranged to face the third radiator.

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Abstract

本申请提供一种天线结构及电子设备，该天线结构包括：天线支架、第一辐射体、第二辐射体和电路板，所述第一辐射体和所述第二辐射体均设于所述天线支架上，其中，所述第一辐射体包括基部、及自所述基部延伸形成的第一辐射枝和第二辐射枝；所述第二辐射枝位于所述第一辐射枝和所述第二辐射体之间，且所述第二辐射枝和所述第二辐射体之间具有第一间隙，所述第二辐射枝和所述第二辐射体耦合连接；所述第一辐射体设有馈点，所述馈点与设于所述电路板上的射频电路电连接。

Description

天线结构及电子设备
相关申请的交叉引用
本申请主张在2020年6月11日在中国提交的中国专利申请号No.202010528631.6的优先权，其全部内容通过引用包含于此。
技术领域
本申请涉及通信技术领域，尤其涉及一种天线结构及电子设备。
背景技术
随着技术的发展，尤其是智能手机等电子设备的无孔化设计，蓝牙耳机在智能手机等电子设备的通讯中得到了广泛的应用。然而，由于蓝牙耳机的尺寸问题，导致蓝牙耳机在连接速度、传输距离、抗干扰能力等方便的表现较差。
可见，现有的蓝牙耳机的天线存在信号传输能力差的问题。
发明内容
本申请实施例提供一种天线结构及电子设备，能够解决现有的电子设备的天线存在信号传输能力差的问题。
为解决上述技术问题，本申请是这样实现的：
第一方面，本申请实施例提供了一种天线结构，包括：天线支架、第一辐射体、第二辐射体和电路板，所述第一辐射体和所述第二辐射体均设于所述天线支架上，其中，
所述第一辐射体包括基部、及自所述基部延伸形成的第一辐射枝和第二辐射枝；
所述第二辐射枝位于所述第一辐射枝和所述第二辐射体之间，且所述第二辐射枝和所述第二辐射体之间具有第一间隙，所述第二辐射枝和所述第二辐射体耦合连接；
所述第一辐射体设有馈点，所述馈点与设于所述电路板上的射频电路电 连接。
第二方面，本申请实施例还提供一种电子设备，包括上述天线结构。
在本申请实施例中，通过在天线支架上设置与第二辐射枝耦合连接的第二辐射体，可以有效改善天线结构的辐射性能，同时还可以改善天线结构在低信道的辐射能力，并解决了天线结构在低信道和高信道辐射性能差异大的问题，提高了天线结构的信号传输能力。
附图说明
图1是本申请实施例提供的天线结构的结构图之一；
图2是本申请实施例提供的天线结构的结构图之二；
图3是本申请实施例提供的天线结构的结构图之三；
图4是本申请实施例提供的电路板的结构图；
图5是本申请实施例提供的天线结构的自由空间的TRP的对比数据图表；
图6是本申请实施例提供的天线结构的自由空间的TIS的对比数据图表。
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，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
如图1所示，本申请实施例提供一种天线结构，包括：天线支架10、第一辐射体20、第二辐射体30和电路板40，第一辐射体20和第二辐射体30 均设于天线支架10上；
第一辐射体20包括基部21、及自基部21延伸形成的第一辐射枝22和第二辐射枝23；
第二辐射枝23位于第一辐射枝22和第二辐射体30之间，且第二辐射枝23和第二辐射体30之间具有第一间隙61，第二辐射枝23和第二辐射体30耦合连接；
第一辐射体20设有馈点24，馈点24与设于电路板40上的射频电路(未图示)电连接。
本实施方式中，通过在天线支架10上设置与第二辐射枝23耦合连接的第二辐射体30，可以有效改善天线结构的辐射性能，同时还可以改善天线结构在低信道的辐射能力，并解决了天线结构在低信道和高信道辐射性能差异大的问题，提高了天线结构的信号传输能力。
其中，通过第一间隙61的设置，以使第二辐射枝23和第二辐射体30进行缝隙耦合，实现第二辐射枝23和第二辐射体30耦合连接，进而提升天线结构的辐射接收性能。
馈点24可以通过弹片(未图示)与电路板40上的射频电路电连接，以实现天线结构的信号辐射功能或者信号接收功能。
可选的，如图2所示，第一辐射体20还包括自基部21延伸形成的第三辐射枝25，第一辐射枝22、第二辐射枝23和第三辐射枝25位于基部21的同一侧，且第一辐射枝22位于第二辐射枝23和第三辐射枝25之间；天线结构还包括设于天线支架10上的第三辐射体50，第三辐射枝25位于第一辐射枝22和第三辐射体50之间，且第三辐射枝25和第三辐射体50之间具有第二间隙62，第三辐射枝25和第三辐射体50耦合连接。
本实施方式中，通过在天线支架10上设置与第三辐射枝25耦合连接的第三辐射体50，可以进一步有效改善天线结构的辐射性能，同时还可以进一步改善天线结构在低信道的辐射能力，并解决了天线结构在低信道和高信道辐射性能差异大的问题，进一步提高了天线结构的信号传输能力。
其中，可以利用激光直接成型技术在天线支架10上形成第一辐射体20、第二辐射体30和第三辐射体50。比如，针对蓝牙耳机的天线结构，可以基于 与蓝牙耳机相适配的天线支架10上，利用激光镭射技术直接在天线支架10上化镀形成第一辐射体20、第二辐射体30和第三辐射体50，从而实现第一辐射体20、第二辐射体30和第三辐射体50设置在天线支架10上。
其中，设置在天线支架10上的第一辐射体20、第二辐射体30和第三辐射体50可以是天线镀层，即设置在天线支架10上的金属镀层。尤其是，第二辐射体30和第三辐射体50可以通过天线贴片的样式设置在天线支架10上。
其中，第一辐射体20包括基部21、及自基部21延伸形成的第一辐射枝22、第二辐射枝23和第三辐射枝25，且第一辐射枝22第二辐射枝23和第三辐射枝25位于基部21的同一侧，并间隔分布在天线支架10上。且基部21、第一辐射枝22、第二辐射枝23和第三辐射枝25呈“山”字形分布在天线支架10上。
其中，馈点24可以设置在第一辐射枝22上，并可以设置在第一辐射枝22的远离基部21的一端。
可选的，第二辐射体30和第三辐射体50可以相对于第一辐射枝22对称设置，以进一步改善天线结构的辐射接收性能。
相应的，第二辐射枝23和第三辐射枝25可以相对于第一辐射枝22对称设置，以进一步改善天线结构的辐射接收性能。
可选的，第一间隙61的宽度范围为0.4毫米～0.6毫米，其中，经过验证测试，当第一间隙61的宽度为0.5毫米时，第二辐射枝23和第二辐射体30的耦合连接效果最好，使得天线结构的辐射性能更好。
相应的，第二间隙62的宽度范围为0.4毫米～0.6毫米，其中，经过验证测试，当第二间隙62的宽度为0.5毫米时，第三辐射枝25和第三辐射体50的耦合连接效果最好，使得天线结构的辐射接收性能更好。
可选的，如图3所示，电路板40包括基板41、及设于基板41的两相对侧的第一盖板42和第二盖板43；第一盖板42和第二辐射体30耦合连接，并相对天线支架10层叠设置；第二盖板43和第三辐射体50耦合连接，并相对天线支架10层叠设置。
本实施方式中，第一盖板42和第二辐射体30之间具有第三间隙，以使 第一盖板42和第二辐射体30进行空间耦合，进而实现第一盖板42和第二辐射体30的耦合连接；相应的，第二盖板43和第三辐射体50之间具有第四间隙，以使第二盖板43和第三辐射体50进行空间耦合，进而实现第二盖板43和第二辐射体30的耦合连接。通过第一盖板42和第二盖板43的设置，可以进一步提高天线结构的辐射接收性能。
其中，第一盖板42和第二盖板43均与基板41上的接地结构电连接，以使第一盖板42和第二盖板43接地，进而提高天线结构的辐射接收性能。
如图4所示，第一盖板42自基板41的第一侧边缘延伸形成，第二盖板43自基板41的第二侧边缘延伸形成，且第一侧边缘和第二侧边缘为基板41的两相对侧边缘。
其中，电路板40可以设置在天线支架10的下方，第一盖板42和第二盖板43可以自基板41的两相对侧，分别朝设于天线支架10上的第二辐射体30和第三辐射体50的所在方向延伸，并分别相对第二辐射体30层叠设置，及相对第三辐射体50层叠设置。
为进一步改善天线的辐射接收性能，可以将第一盖板42的形状设置成与第二辐射体30的形状相同，还可以将第二盖板43的形状设置成与第三辐射体50的形状相同。
可选的，第三间隙的宽度范围为0.9毫米～1.1毫米，其中，当第三间隙的宽度为1毫米时，第一盖板42和第二辐射体30的耦合具有更好的连接效果，使得天线结构的辐射性能更好。
相应的，第四间隙的宽度范围为0.9毫米～1.1毫米，其中，当第四间隙的宽度为1毫米时，第二盖板43和第二辐射体30的耦合具有更好的连接效果，使得天线结构的辐射接收性能更好。
其中，第一盖板42和第二盖板43的材质可以与基板41的材质一致，且第一盖板42和第二盖板43上也可以设置电路板走线，以便第一盖板41和第二辐射体30进行空间耦合，以及使第二盖板43和第三辐射体50进行空间耦合。
其中，第一盖板42和第二盖板43的形状尺寸可以根据天线结构的形状大小进行调整；相应的，第一辐射体20、第二辐射体30及第三辐射体50的 形状尺寸也可以根据天线结构的形状尺寸进行调整。
如图5所示，本申请实施例提供的天线结构的自由空间的辐射性能发射参数(Total Radiated Power，TRP)的对比数据图表，基于图5所示对比数据图表可知，设有第一盖板42和第二盖板43的天线结构的TRP值高于未设有第一盖板42和第二盖板43的天线结构的TRP值。
具体的，如图5所示，信道为0时，设有第一盖板42和第二盖板43的天线结构的TRP值为6.5，未设有第一盖板42和第二盖板43的天线结构的TRP值为1.4；信道为39时，设有第一盖板42和第二盖板43的天线结构的TRP值为7，未设有第一盖板42和第二盖板43的天线结构的TRP值为3.7；信道为78时，设有第一盖板42和第二盖板43的天线结构的TRP值为7.5，未设有第一盖板42和第二盖板43的天线结构的TRP值为4.8。
如图6所示，本申请实施例提供的天线结构的自由空间的辐射性能接收参数(Total Isotropic Sensitivity，TIS)的对比数据图表，基于图6所示的对比数据图表可知，设有第一盖板42和第二盖板43的天线结构的TIS值的绝对值高于未设有第一盖板42和第二盖板43的天线结构的TIS值的绝对值。
具体的，如图6所示，信道为0时，设有第一盖板42和第二盖板43的天线结构的TIS值为-90.9，未设有第一盖板42和第二盖板43的天线结构的TIS值为-85.1；信道为39时，设有第一盖板42和第二盖板43的天线结构的TIS值为-90.8，未设有第一盖板42和第二盖板43的天线结构的TIS值为-87.7；信道为78时，设有第一盖板42和第二盖板43的天线结构的TIS值为-91.4，未设有第一盖板42和第二盖板43的天线结构的TIS值为-88.9。
基于图5和图6的数据图表可知，通过利用第二辐射枝23和第二辐射体30的间隙耦合、第三辐射枝25和第三辐射体50的间隙耦合、第一盖板42和第二辐射体30的空间耦合、第二盖板42和第三辐射体50的空间耦合以及寄生天线的工作原理，可以从整体上提升天线结构的TRP和TIS，同时还可以改善天线结构在低信道的辐射能力，并解决了天线结构在低信道和高信道辐射性能差异大的问题，提高了天线结构的信号传输能力。
本申请实施例还提供一种电子设备，包括上述天线结构。
需要说明的是，上述天线结构实施例的实现方式同样适应于该电子设备 的实施例中，并能达到相同的技术效果，在此不再赘述。
其中，电子设备可以是蓝牙耳机、智能眼镜、智能手表、智能手环等。
其中，针对电子设备为条状的蓝牙耳机的情况，天线结构的天线支架可以是圆柱状，第一辐射体、第二辐射体、第三辐射体可以间隔分布天线支架的圆周面上。
而且，设于电路板的基板上的第一盖板和第二盖板，可以和基板构成以槽型结构，且天线支架可部分位于槽型结构内。其中，第一盖板可以正对第二辐射体设置，第二盖板可以正对第三辐射体设置。
需要说明的是，在本文中，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、物品或者装置不仅包括那些要素，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、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (10)

  1. 一种天线结构，包括：天线支架、第一辐射体、第二辐射体和电路板，所述第一辐射体和所述第二辐射体均设于所述天线支架上，其中，
    所述第一辐射体包括基部、及自所述基部延伸形成的第一辐射枝和第二辐射枝；
    所述第二辐射枝位于所述第一辐射枝和所述第二辐射体之间，且所述第二辐射枝和所述第二辐射体之间具有第一间隙，所述第二辐射枝和所述第二辐射体耦合连接；
    所述第一辐射体设有馈点，所述馈点与设于所述电路板上的射频电路电连接。
  2. 根据权利要求1所述的天线结构，其中，所述第一辐射体还包括自所述基部延伸形成的第三辐射枝，所述第一辐射枝、所述第二辐射枝和所述第三辐射枝位于所述基部的同一侧，且所述第一辐射枝位于所述第二辐射枝和所述第三辐射枝之间；
    所述天线结构还包括设于所述天线支架上的第三辐射体，所述第三辐射枝位于所述第一辐射枝和所述第三辐射体之间，且所述第三辐射枝和所述第三辐射体之间具有第二间隙，所述第三辐射枝和所述第三辐射体耦合连接。
  3. 根据权利要求2所述的天线结构，其中，所述电路板包括基板、及设于所述基板的两相对侧的第一盖板和第二盖板，其中，
    所述第一盖板和所述第二辐射体耦合连接，并相对所述天线支架层叠设置；
    所述第二盖板与所述第三辐射体耦合连接，并相对所述天线支架层叠设置。
  4. 根据权利要求3所述的天线结构，其中，所述第一盖板和所述第二盖板均与所述基板上的接地结构电连接。
  5. 根据权利要求3所述的天线结构，其中，所述第一盖板自所述基板的第一侧边缘延伸形成，所述第二盖板自所述基板的第二侧边缘延伸形成，所述第一侧边缘和所述第二侧边缘为所述基板的两相对侧边缘。
  6. 根据权利要求3所述的天线结构，其中，所述第一盖板的形状和所述第二辐射体的形状相同，所述第二盖板的形状和所述第三辐射体的形状相同。
  7. 根据权利要求2所述的天线结构，其中，所述第一间隙的宽度范围为0.4毫米～0.6毫米，所述第二间隙的宽度范围为0.4毫米～0.6毫米。
  8. 根据权利要求2所述的天线结构，其中，所述第二辐射体和所述第三辐射体相对于所述第一辐射枝对称设置。
  9. 根据权利要求2所述的天线结构，其中，所述第二辐射枝和所述第三辐射枝相对于所述第一辐射枝对称设置。
  10. 一种电子设备，包括如权利要求1至9中任一项所述的天线结构。
PCT/CN2021/099322 2020-06-11 2021-06-10 天线结构及电子设备 WO2021249465A1 (zh)

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