WO2023226392A1

WO2023226392A1 - Antenna assembly and electronic device

Info

Publication number: WO2023226392A1
Application number: PCT/CN2022/140171
Authority: WO
Inventors: 吴小浦
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-05-27
Filing date: 2022-12-19
Publication date: 2023-11-30
Also published as: CN114944548A

Abstract

The present application discloses an antenna assembly and an electronic device. According to the antenna assembly provided by embodiments of the present application, multiple antennas share radiators, so that communication quality is improved, and the overall miniaturization of an electronic device is facilitated. Furthermore, SAR measurement can be conveniently achieved to achieve reasonable control of antenna power.

Description

An antenna component and electronic device

Technical field

This application relates to but is not limited to electronic technology, especially an antenna component and electronic equipment.

Background technique

With the development of technology, electronic devices with communication functions such as mobile phones are becoming more and more popular and their functions are becoming more and more powerful. Electronic devices usually include antenna systems to implement the communication functions of the electronic device. How to improve the communication quality of electronic devices while also promoting the miniaturization of electronic devices has become a technical problem that needs to be solved.

Summary of the invention

This application provides an antenna assembly and electronic equipment, which can improve communication quality and facilitate miniaturization of the entire machine.

An embodiment of the present application provides an antenna assembly, including: a first antenna unit, a second antenna unit and a third antenna unit; wherein,

The first antenna unit includes a first radiator and a first feed source. The first feed source is electrically connected to the first radiator and is used to excite the first radiator to resonate in a first frequency band. The first frequency band includes the mid-to-high frequency MHB frequency band and the ultra-high frequency UHB frequency band;

The second antenna unit includes a second radiator and a third feed source. There is a first gap between one end of the second radiator and the first radiator. The third feed source is connected to the second feed source. The radiator is electrically connected to excite the second radiator to resonate in a third frequency band, and the third frequency band includes the MHB frequency band; the second radiator is multiplexed as a proximity sensor electrode, used to sense and represent the subject pair to be detected. Proximity of antenna components;

The third antenna unit includes a third radiator and a fifth feed source. There is a second gap between the third radiator and the second radiator. The fifth feed source and the third radiator Electrical connection, used to excite the third radiator to resonate in a fifth frequency band, where the fifth frequency band includes a low-frequency LB frequency band.

An antenna assembly provided by an embodiment of the present application can emit and/or receive electromagnetic wave signals under coupling at least covering the LTE-MHB frequency band, NR-MHB frequency band, LTE-LB frequency band, NR-LB frequency band and NR-UHB frequency band. A multi-antenna community is realized, which improves communication quality and is conducive to the overall miniaturization of electronic equipment. On the other hand, SAR detection can also be easily implemented to achieve reasonable control of antenna power.

Another antenna component provided by the embodiment of the present application can emit and/or receive electromagnetic wave signals under coupling at least covering the LTE-MHB frequency band, NR-MHB frequency band, LTE-LB frequency band, NR-LB frequency band, and NR-UHB frequency band. and GPS-L5 frequency band, achieving at least 5 antennas with a common caliber, improving communication quality and conducive to the overall miniaturization of electronic equipment. Furthermore, it is also convenient to detect SAR to achieve reasonable control of antenna power.

An electronic device is characterized by including the antenna assembly described in any one of the embodiments of the present application.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and obtained by the structure particularly pointed out in the written description, claims and appended drawings.

Figure overview

The drawings are used to provide a further understanding of the technical solution of the present application and constitute a part of the specification. They are used to explain the technical solution of the present application together with the embodiments of the present application and do not constitute a limitation of the technical solution of the present application.

Figure 1 is a schematic structural diagram of the first embodiment of the antenna assembly in the embodiment of the present application;

Figure 2 is a schematic structural diagram of the second embodiment of the antenna assembly in the embodiment of the present application;

Figure 3 is a schematic structural diagram of the third embodiment of the antenna assembly in the embodiment of the present application;

Figure 4 is a schematic structural diagram of the fourth embodiment of the antenna assembly in the embodiment of the present application;

Figure 5 is a schematic structural diagram of the fifth embodiment of the antenna assembly in the embodiment of the present application;

Figure 6 is a schematic structural diagram of the sixth embodiment of the antenna assembly in the embodiment of the present application;

Figure 7 is a schematic structural diagram of the seventh embodiment of the antenna assembly in the embodiment of the present application;

Figure 8(a) is a schematic diagram of the principle of mode 1 excited by the first antenna unit in the seventh embodiment of the present application;

Figure 8(b) is a schematic diagram of the principle of mode 2 excited by the first antenna unit in the seventh embodiment of the present application;

Figure 8(c) is a schematic diagram of the principle of mode 3 excited by the first antenna unit in the seventh embodiment of the present application;

Figure 8(d) is a schematic diagram of the principle of mode 4 excited by the first antenna unit in the seventh embodiment of the present application;

Figure 9 is a schematic diagram of the return loss curve of the first antenna unit transmitting and/or receiving electromagnetic wave signals in the first frequency band in the seventh embodiment of the present application;

Figure 10 is a schematic diagram of the principle of mode 5 excited by the second antenna unit in the seventh embodiment of the present application;

Figure 11 is a schematic diagram of the return loss curve of the second antenna unit transmitting and/or receiving electromagnetic wave signals in the second frequency band in the seventh embodiment of the present application;

Figure 12(a) is a schematic diagram of the principle of mode 6 excited by the third antenna unit in the seventh embodiment of the present application;

Figure 12(b) is a schematic diagram of the principle of mode 7 excited by the third antenna unit in the seventh embodiment of the present application;

Figure 13 is a schematic diagram of the return loss curve of the third antenna unit transmitting and/or receiving electromagnetic wave signals in the third frequency band in the seventh embodiment of the present application;

Figure 14 is a schematic structural diagram of the eighth embodiment of the antenna assembly in the embodiment of the present application;

Figure 15(a) is a schematic diagram of the principle of mode 8 excited by the fourth antenna in the eighth embodiment of the present application;

Figure 15(b) is a schematic diagram of the principle of mode 9 excited by the fourth antenna in the eighth embodiment of the present application;

Figure 16 is a schematic diagram of the return loss curve of the fourth antenna transmitting and/or receiving electromagnetic wave signals in the fourth frequency band in the eighth embodiment of the present application;

Figure 17 is a schematic diagram of the principle of mode 8' excited by the fourth antenna in the seventh embodiment of the present application;

Figure 18 is a schematic diagram of the principle of mode 10 excited by the fifth antenna in the seventh embodiment of the present application;

Figure 19 is a schematic diagram of the return loss curve of the fifth antenna transmitting and/or receiving electromagnetic wave signals in the fifth frequency band in the seventh embodiment of the present application;

Figure 20 is a schematic structural diagram of the ninth embodiment of the antenna assembly in the embodiment of the present application;

Figure 21 is a schematic structural diagram of the tenth embodiment of the antenna assembly in the embodiment of the present application;

Figure 22 is a schematic diagram of the distribution of electric field lines when the target object is not close to the antenna assembly in the embodiment of the present application;

Figure 23 is a schematic diagram of the distribution of electric field lines when the target object is close to the antenna assembly in the embodiment of the present application;

Figure 24 is a schematic structural diagram of the eleventh embodiment of the antenna assembly in the embodiment of the present application;

Figure 25 is a schematic layout diagram of an antenna assembly in an electronic device according to an embodiment of the present application.

Elaborate

In order to make the purpose, technical solutions and advantages of the present application more clear, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the accompanying drawings. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing specific embodiments only and is not intended to limit the application.

It can be understood that the terms "first" and "second" used in this application are only used for descriptive purposes and cannot be understood to indicate or imply the relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of these features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

It can be understood that "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have the transmission of electrical signals or data between each other.

As used herein, the singular forms "a," "an," and "the" may include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the terms "comprising" or "having" and the like specify the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not exclude the presence or addition of one or more Possibility of other features, integers, steps, operations, components, parts or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.

This application provides an antenna assembly 10. The antenna assembly 10 can be used in electronic devices, including but not limited to mobile phones, Internet devices (MID, Mobile Internet Device), e-books, portable playback stations (PSP, Play Station Portable) or personal digital assistants. (PDA, Personal Digital Assistant) and other electronic devices with communication functions.

Figure 1 is a schematic structural diagram of the first embodiment of the antenna assembly in the embodiment of the present application. As shown in Figure 1, the antenna assembly 10 in the first embodiment may include: a first antenna unit 110, a second antenna unit 120 and The third antenna unit 130; wherein,

The first antenna unit 110 includes a first radiator 111 and a first feed source 11. The first feed source 11 is electrically connected to the first radiator 111 and is used to excite the first radiator 111 to resonate in the first frequency band. In one embodiment, the first frequency band includes a mid-high frequency (MHB) frequency band and an ultra-high frequency (UHB) frequency band. As shown in FIG. 1 , in one embodiment, the first radiator 111 has a first feed point A, and the first feed source 11 is electrically connected to the first feed point A to excite the first radiator 111 to resonate at First frequency band.

The second antenna unit 120 includes a second radiator 121 with a first gap 1112 between one end of the second radiator 121 and the first radiator 111 , and a gap 1112 between the other end of the second radiator 121 and the third radiator 131 . second gap 1213;

The third antenna unit 130 includes a third radiator 131 and a fifth feed source 15. The fifth feed source 15 is electrically connected to the third radiator 131 and is used to excite the third radiator 131 to resonate in the fifth frequency band. In one embodiment, the fifth frequency band includes a low frequency (LB) frequency band. As shown in FIG. 1 , in one embodiment, the third radiator 131 has a fourth feed point F, and the fifth feed source 15 is electrically connected to the fourth feed point F to excite the third radiator 131 to resonate at Fifth band.

In the antenna assembly provided in Figure 1, the second antenna unit 120 is a suspended radiator. The coupling between the first radiator 111 and the third radiator 131 is achieved through the second antenna unit 120, that is, the first radiator 111 and the third radiator 131 are coupled together. The three radiators have a total caliber of 131. As shown in FIG. 1 , when the antenna assembly 10 is working, the first excitation signal generated by the first feed source 11 may be coupled to the third radiator 131 via the first radiator 11 and the second antenna unit 120 . In other words, when the first antenna unit 110 is working, it can not only use the first radiator 111 but also the third radiator 131 in the third antenna unit 130 to transmit electromagnetic wave signals, so that the first antenna unit 110 can work in Wider frequency band. Similarly, when the third antenna unit 130 is working, it can not only use the third radiator 131 but also use the first radiator 111 in the first antenna unit 110 to transmit electromagnetic wave signals, so that the third antenna unit 130 can work in a relatively stable environment. wide frequency band. At the same time, the second antenna unit 120 serves as a suspended radiator and generates n/2 wavelength mode resonance through coupling, thereby increasing the bandwidth of the MHB frequency band. In this way, on the one hand, since the radiators between the first antenna unit 110 and the third antenna unit 130 are multiplexed with each other, a multi-antenna community is realized; on the other hand, the first antenna unit 120 is added through the second antenna unit 120 . Therefore, the antenna assembly 10 provided by the embodiment of the present application not only increases the bandwidth, but also reduces the overall volume of the antenna assembly 10, which is beneficial to the overall miniaturization of the electronic device.

In an illustrative example, FIG. 2 is a schematic structural diagram of a second embodiment of the antenna assembly in the embodiment of the present application. As shown in FIG. 2, based on the embodiment shown in FIG. 1, the third antenna unit 130 A fourth feed source 14 is also included. The fourth feed source 14 is electrically connected to the third radiator 131 and is used to excite the third radiator 131 to resonate in a fourth frequency band. In one embodiment, the fourth frequency band includes the UHB frequency band. As shown in FIG. 2 , in one embodiment, the fourth feed source 14 is electrically connected to the fourth feed point F to excite the third radiator 131 to resonate in the fourth frequency band.

In an illustrative example, the first frequency band is a middle high frequency (MHB, Middle High Band) and ultra high frequency (UHB, Ultra High Band) frequency band, the fourth frequency band is a UHB frequency band, and the fifth frequency band is a low frequency (LB, Lower Band) frequency band. It should be noted that the frequency band range of MHB is 1000MHz-3000MHz, the frequency band range of UHB is 3000MHz-6000MHz, and the range of LB frequency band is below 1000MHz. Among them, the LB frequency band may include all low-frequency electromagnetic wave signals such as 4G (also called LTE-LB) and 5G (also called NR-LB). The MHB frequency band can include electromagnetic wave signals in all mid- and high-frequency bands such as LTE-MHB and NR-MHB.

The electromagnetic wave signals emitted and/or received by the antenna assembly shown in Figure 1 or Figure 2 under the coupling effect at least cover the LTE-MHB frequency band, NR-MHB frequency band, LTE-LB frequency band, NR-LB frequency band and NR-UHB frequency band, achieving A multi-antenna community is created, which improves communication quality and is conducive to the overall miniaturization of electronic equipment. On the other hand, the suspended metal piece 120 can also be used to easily detect SAR to achieve reasonable control of the antenna power.

In an illustrative example, FIG. 3 is a schematic structural diagram of a third embodiment of the antenna assembly in the embodiment of the present application. As shown in FIG. 3, based on the embodiment shown in FIG. 1, the second antenna unit 120 It may also include a first frequency modulation circuit T1. As shown in Figure 3, the second radiator 121 is provided with a second ground terminal C. One end of the first frequency modulation circuit T1 is electrically connected to the second ground terminal C. The other end is connected to the second reference ground GND2. In the embodiment of the present application, a large capacitor may also be connected to the ground at the second ground terminal C, which will not be described in detail here. Through the antenna assembly shown in FIG. 3, a quarter-wavelength pattern from the first gap 1112 to the second reference ground GND2 is generated for increasing the frequency of the MHB and/or UHB frequency band transmitted and/or received by the first antenna unit 110. wide, while generating a 1/4 wavelength mode from the second gap 1213 to the second reference ground GND2, for increasing the LB frequency band transmitted and/or received by the third antenna unit 130. At the same time, the second antenna unit 120 serves as a suspended radiator, and the n/2 wavelength mode resonance generated by coupling still exists, which also increases the bandwidth of the MHB frequency band.

In an illustrative example, Figure 4 is a schematic structural diagram of the fourth embodiment of the antenna assembly in the embodiment of the present application. As shown in Figure 4, based on the embodiment shown in Figure 3, the second antenna unit 120 A third feed source 13 is also included. The third feed source 13 is electrically connected to the second radiator 121 for stimulating the second radiator 121 to resonate in a third frequency band. In one embodiment, the third frequency band includes the MHB frequency band or MHB+UHB frequency band. As shown in FIG. 4 , the second radiator 121 has a third feed point E, and the third feed source 13 is electrically connected to the third feed point E to excite the second radiator 121 to resonate in the third frequency band. In one embodiment, the third feeding point E may be disposed at one end of the second radiator 121 close to the second gap 1213 . In one embodiment, the second antenna unit 120 further includes: a third matching circuit M3. As shown in FIG. 4 , the third matching circuit M3 is provided between the third feed point E and the third feed source 13 . In one embodiment, the output terminal of the third feed source 13 is electrically connected to the input terminal of the third matching circuit M3 , and the output terminal of the third matching circuit M3 is electrically connected to the third feed point E of the third radiator 131 . The third feed source 13 is used to generate an excitation signal (also called a radio frequency signal), and the third matching circuit M3 is used to filter the noise of the excitation signal transmitted by the third feed source 13 to form a third radio frequency signal in the third frequency band and The third radio frequency signal is transmitted to the second radiator 121 to excite the second radiator 121 to resonate in the third frequency band. In the antenna assembly shown in Figure 4, since the second ground terminal C is provided on the second radiator 121, there is a ground return. Therefore, the MHB frequency band transmitted and/or received on the second radiator 121 and the first radiator 111 The isolation between signals meets the requirements.

In an illustrative example, Figure 5 is a schematic structural diagram of the fifth embodiment of the antenna assembly in the embodiment of the present application. As shown in Figure 5, based on the embodiment shown in Figure 4, the second antenna unit 120 It also includes a second feed source 12. The second feed source 12 is electrically connected to the second radiator 121 for stimulating the second radiator 121 to resonate in a second frequency band. In one embodiment, the second frequency band includes GPS-L5. frequency band. As shown in FIG. 5 , the second radiator 121 has a second feed point B, and the second feed source 12 is electrically connected to the second feed point B to excite the second radiator 121 to resonate in the second frequency band. In one embodiment, the second feeding point B may be disposed at one end of the second radiator 121 close to the first gap 1112 . In one embodiment, the second antenna unit 120 further includes: a second matching circuit M2. As shown in FIG. 5 , the second matching circuit M2 is provided between the second feed point B and the second feed source 12 . In one embodiment, the output terminal of the second feed source 12 is electrically connected to the input terminal of the second matching circuit M2 , and the output terminal of the second matching circuit M2 is electrically connected to the second feed point B of the second radiator 121 . The second feed source 12 is used to generate an excitation signal (also called a radio frequency signal), and the second matching circuit M2 is used to filter the noise of the excitation signal transmitted by the second feed source 12 to form a second radio frequency signal in the second frequency band and The second radio frequency signal is transmitted to the second radiator 121 to excite the second radiator 121 to resonate in the second frequency band. It should be noted that in the embodiment shown in FIG. 5 , the second frequency band may also be the GPS-L1 frequency band, as long as the first radiator does not operate in the same MHB frequency band as the GPS-L1 frequency band.

In an exemplary example, FIG. 6 is a schematic structural diagram of the sixth embodiment of the antenna assembly in the embodiment of the present application. As shown in FIG. 6, based on the embodiment shown in FIG. 5, the third antenna unit 130 A fourth feed source 14 is also included. The fourth feed source 14 is electrically connected to the third radiator 131 and is used to excite the third radiator 131 to resonate in a fourth frequency band. In one embodiment, the fourth frequency band includes the UHB frequency band. As shown in FIG. 6 , the fourth feed source 14 and the fifth feed source 15 may share a line connected to the third antenna unit 130 , the third radiator 131 has a fourth feed point F, and the fourth feed source 14 is electrically connected to the fourth feed point F. The feed point F is used to excite the third radiator 131 to resonate in the fourth frequency band, and the fifth feed source 15 is electrically connected to the fourth feed point F to excite the third radiator 131 to resonate in the fifth frequency band. In one embodiment, the third antenna unit 130 further includes: a fourth matching circuit M4 and a fifth matching circuit M5. As shown in FIG. 6 , the fourth matching circuit M4 is provided between the fourth feed point F and the fourth feed source 14 . In one embodiment, the output terminal of the fourth feed source 14 is electrically connected to the input terminal of the fourth matching circuit M4 , and the output terminal of the fourth matching circuit M4 is electrically connected to the fourth feed point F of the third radiator 131 . The fourth feed source 14 is used to generate an excitation signal (also called a radio frequency signal), and the fourth matching circuit M4 is used to filter the noise of the excitation signal transmitted by the fourth feed source 14 to form a fourth radio frequency signal in the fourth frequency band and The fourth radio frequency signal is transmitted to the third radiator 131 to excite the third radiator 131 to resonate in the fourth frequency band. As shown in FIG. 5 , the fifth matching circuit M5 is provided between the fourth feed point F and the fifth feed source 15 . In one embodiment, the output terminal of the fifth feed source 15 is electrically connected to the input terminal of the fifth matching circuit M5, and the output terminal of the fifth matching circuit M5 is electrically connected to the fourth feed point F of the third radiator 131. The fifth feed source 15 is used to generate an excitation signal (also called a radio frequency signal), and the fifth matching circuit M5 is used to filter the noise of the excitation signal transmitted by the fifth feed source 15 to form a fifth radio frequency signal of the fifth frequency band and The fifth radio frequency signal is transmitted to the third radiator 131 to excite the third radiator 131 to resonate in the fifth frequency band.

In an illustrative example, as shown in FIG. 1 or FIG. 2 , the first radiator 111 has a first feed point A, and the first feed source 11 is electrically connected to the first feed point A, so that the first radiation The body 111 resonates in the first frequency band. In one embodiment, the first antenna unit 110 further includes: a first matching circuit M1. As shown in FIG. 1 or FIG. 2 , the first matching circuit M1 is provided between the first feed point A and the first feed source 11 . In one embodiment, the output terminal of the first feed source 11 is electrically connected to the input terminal of the first matching circuit M1 , and the output terminal of the first matching circuit M1 is electrically connected to the first feed point A of the first radiator 111 . The first feed source 11 is used to generate an excitation signal (also called a radio frequency signal), and the first matching circuit M1 is used to filter the noise of the excitation signal transmitted by the first feed source 11 to form a first radio frequency signal in the first frequency band and The first radio frequency signal is transmitted to the first radiator 111 to excite the first radiator 111 to resonate in the first frequency band. In one embodiment, one end of the first radiator 111 away from the first gap 1112 is a first ground terminal G1, and the first ground terminal G1 is electrically connected to the first reference ground GND1.

In an illustrative example, as shown in FIG. 2 , the fourth feed source 14 and the fifth feed source 15 share a line connecting the third antenna unit 130 , the third radiator 131 has a fourth feed point F, and the fourth feed point 131 has a fourth feed point F. The feed source 14 is electrically connected to the fourth feed point F to excite the third radiator 131 to resonate in the fourth frequency band, and the fifth feed source 15 is electrically connected to the fourth feed point F to excite the third radiator 131 to resonate in the fifth frequency band. In one embodiment, the third antenna unit 130 further includes: a fourth matching circuit M4 and a fifth matching circuit M5. As shown in FIG. 2 , the fourth matching circuit M4 is provided between the fourth feed point F and the fourth feed source 14 . In one embodiment, the output terminal of the fourth feed source 14 is electrically connected to the input terminal of the fourth matching circuit M4 , and the output terminal of the fourth matching circuit M4 is electrically connected to the fourth feed point F of the third radiator 131 . The fourth feed source 14 is used to generate an excitation signal (also called a radio frequency signal), and the fourth matching circuit M4 is used to filter the noise of the excitation signal transmitted by the fourth feed source 14 to form a fourth radio frequency signal in the fourth frequency band and The fourth radio frequency signal is transmitted to the third radiator 131 to excite the third radiator 131 to resonate in the fourth frequency band. As shown in FIG. 2 , the fifth matching circuit M5 is provided between the fourth feed point F and the fifth feed source 15 . In one embodiment, the output terminal of the fifth feed source 15 is electrically connected to the input terminal of the fifth matching circuit M5 , and the output terminal of the fifth matching circuit M5 is electrically connected to the fourth feed point F of the third radiator 131 . The fifth feed source 15 is used to generate an excitation signal (also called a radio frequency signal), and the fifth matching circuit M5 is used to filter the noise of the excitation signal transmitted by the fifth feed source 15 to form a fifth radio frequency signal of the fifth frequency band and The fifth radio frequency signal is transmitted to the third radiator 131 to excite the third radiator 131 to resonate in the fifth frequency band. In one embodiment, one end of the third radiator 131 away from the second gap 1213 is a fourth ground terminal G4, and the fourth ground terminal G4 is electrically connected to the fourth reference ground GND4.

In an illustrative example, the fourth feed source 14 and the fifth feed source 15 may be provided separately, that is, the fourth feed source 14 is electrically connected to the third radiator 131 through a feed point, and the fifth feed source 15 The third radiator 131 is electrically connected through another feed point. In one embodiment, a feed point electrically connected to the fourth feed source 14 can be set on the radiator closer to the second gap 1213, and another feed point electrically connected to the fifth feed source 15 can be set. On the radiator farther away from the second gap 1213, as shown in Figure 2, for example, one feed point electrically connected to the fourth feed source 14 is the fourth feed point 14, then the other feed point electrically connected to the fifth feed source 15 A feed point may be disposed between the fourth feed point 14 and the fourth ground terminal G4.

FIG. 7 is a schematic structural diagram of the seventh embodiment of the antenna assembly in the embodiment of the present application. In an exemplary example, as shown in FIG. 7 , the second antenna unit 120 also includes at least two feed sources such as a second feed source. Source 12 and the third feed source 13. The second feed source 12 is electrically connected to the second radiator 121 for stimulating the second radiator 121 to resonate in the second frequency band. The third feed source 13 is electrically connected to the second radiator 121. , used to excite the second radiator 121 to resonate in the third frequency band. In one embodiment, the second frequency band is the GPS-L5 frequency band, and the third frequency band is the MHB frequency band.

In the antenna assembly provided in FIG. 7 , the first radiator 111 and the second radiator 121 are spaced apart and coupled to each other, that is, the first radiator 111 and the second radiator 121 have the same diameter. The third radiator 131 and the second radiator 121 are spaced apart and coupled to each other, that is, the third radiator 131 and the second radiator 121 have the same diameter. When the antenna assembly 10 is working, the first excitation signal generated by the first feed source 11 may be coupled to the second radiator 121 via the first radiator 111 . In other words, when the first antenna unit 110 is working, it can not only use the first radiator 111 but also use the second radiator 121 in the second antenna unit 120 to transmit electromagnetic wave signals, so that the first antenna unit 110 can work in Wider frequency band. Similarly, when the second antenna unit 120 is working, it can not only utilize the second radiator 121 but also utilize the first radiator 111 in the first antenna unit 110 and the third radiator 131 in the third antenna unit 130 to transmit electromagnetic waves. signal, thereby allowing the second antenna unit 120 to operate in a wider frequency band. Similarly, when the third antenna unit 130 is working, it can not only use the third radiator 131 but also use the second radiator 121 in the second antenna unit 120 to transmit electromagnetic wave signals, so that the third antenna unit 130 can work at a relatively high temperature. wide frequency band. In this way, since the radiators between the first antenna unit 110 and the second antenna unit 120 are multiplexed with each other, and the radiators between the second antenna unit 120 and the third antenna unit 130 are multiplexed with each other, therefore, By eliminating multiple antenna units, the antenna assembly 10 not only increases the bandwidth, but also reduces the overall volume of the antenna assembly 10, which is beneficial to the overall miniaturization of electronic equipment.

In an illustrative example, the second frequency band is the GPS-L5 frequency band, and the third frequency band is the MHB frequency band. It should be noted that the frequency band of MHB ranges from 1000MHz to 3000MHz, and the MHB frequency band can include electromagnetic wave signals in all mid- and high-frequency bands such as LTE-MHB and NR-MHB. The GPS mentioned here means positioning, including but not limited to Global Positioning System (GPS, Global Positioning System) positioning, Beidou positioning, GLONASS positioning, GALILEO positioning, etc. The center resonant frequency point of the GPS-L5 band is 1176MHz.

The electromagnetic wave signals emitted and/or received by the antenna assembly shown in Figure 7 under coupling at least cover the LTE-MHB frequency band, NR-MHB frequency band, LTE-LB frequency band, NR-LB frequency band, NR-UHB frequency band and GPS-L5 frequency band. , achieving a common caliber of at least 5 antennas, improving communication quality, and conducive to the overall miniaturization of electronic equipment.

In an illustrative example, the second antenna unit 120 includes two feed sources: a second feed source 12 and a third feed source 13 . As shown in FIG. 7 , the second radiator 121 has a second feed point B, and the second feed source 12 is electrically connected to the second feed point B to excite the second radiator 121 to resonate in the second frequency band. In one embodiment, the second feeding point B may be disposed at one end of the second radiator 121 close to the first gap 1112 . In one embodiment, the second antenna unit 120 further includes: a second matching circuit M2. As shown in FIG. 7 , the second matching circuit M2 is provided between the second feed point B and the second feed source 12 . In one embodiment, the output terminal of the second feed source 12 is electrically connected to the input terminal of the second matching circuit M2 , and the output terminal of the second matching circuit M2 is electrically connected to the second feed point B of the second radiator 121 . The second feed source 12 is used to generate an excitation signal (also called a radio frequency signal), and the second matching circuit M2 is used to filter the noise of the excitation signal transmitted by the second feed source 12 to form a second radio frequency signal in the second frequency band and The second radio frequency signal is transmitted to the second radiator 121 to excite the second radiator 121 to resonate in the second frequency band. As shown in FIG. 7 , the second radiator 121 has a third feed point E, and the third feed source 13 is electrically connected to the third feed point E to excite the second radiator 121 to resonate in the third frequency band. In one embodiment, the third feeding point E may be disposed at one end of the second radiator 121 close to the second gap 1213 . In one embodiment, the second antenna unit 120 further includes: a third matching circuit M3. As shown in FIG. 7 , the third matching circuit M3 is provided between the third feed point E and the third feed source 13 . In one embodiment, the output terminal of the third feed source 13 is electrically connected to the input terminal of the third matching circuit M3 , and the output terminal of the third matching circuit M3 is electrically connected to the third feed point E of the third radiator 131 . The third feed source 13 is used to generate an excitation signal (also called a radio frequency signal), and the third matching circuit M3 is used to filter the noise of the excitation signal transmitted by the third feed source 13 to form a third radio frequency signal in the third frequency band and The third radio frequency signal is transmitted to the second radiator 121 to excite the second radiator 121 to resonate in the third frequency band.

In an illustrative example, as shown in FIG. 7 , at least one ground terminal may also be provided between the second feed point B and the third feed point E. In one embodiment, the second radiator 121 is provided with a second ground terminal C and a third ground terminal D. The second ground terminal C is electrically connected to the second reference ground GND2, and the third ground terminal D is electrically connected to the third reference ground. Ground GND3. In one embodiment, multiple ground matches can be added between the second ground terminal C and the third ground terminal D to improve the isolation between the second electromagnetic wave signal and the third electromagnetic wave signal, that is, corresponding to the second feed Isolation between Ant2 of source 12 and Ant3 of the corresponding third feed source 13 .

The matching circuits (such as the first matching circuit M1, the second matching circuit M2, the third matching circuit M3, the fourth matching circuit M4, and the fifth matching circuit M5) in the embodiment of the present application include but are not limited to series and/or parallel arrangements. A frequency-selective filter network of capacitors, inductors, resistors, etc., and the matching circuit may include branches formed by multiple series and/or parallel capacitors, inductors, and resistors, and switches that control the on-off of multiple branches. By controlling the on and off of different switches, the frequency selection parameters of the matching circuit (such as resistance value, inductance value and capacitance value) can be adjusted, and then the filtering range of the matching circuit can be adjusted, so that the matching circuit can emit from the feed source it is connected to. The radio frequency signal is obtained from the excitation signal, thereby causing the antenna to transmit the electromagnetic wave signal of the radio frequency signal. Different matching circuits may be different, and their specific circuit implementation is not used to limit the protection scope of this application. Matching circuits are used to adjust the impedance of the radiator to which it is electrically connected so that the impedance of the radiator to which it is electrically connected matches the frequency at which it resonates, thereby achieving greater transmitting and receiving power of the radiator. Therefore, the matching circuit also called matching circuit. By setting the frequency modulation circuit and adjusting the parameters of the frequency modulation circuit, the resonant frequency of each antenna can be moved along the low frequency or high frequency, realizing the ultra-wideband of the antenna assembly 10 and increasing the antenna signal coverage and communication quality of the antenna assembly 10 .

In an illustrative example, the second antenna unit 120 further includes a first frequency modulation circuit T1 and/or a second frequency modulation circuit T2. As shown in Figure 7, one end of the first frequency modulation circuit T1 is electrically connected to the second ground terminal C, The other end of the first frequency modulation circuit T1 is connected to the second reference ground GND2. One end of the second frequency modulation circuit T2 is electrically connected to the third ground terminal D, and the other end of the second frequency modulation circuit T2 is connected to the third reference ground GND3. As shown in the embodiment shown in FIG. 7 , the first frequency modulation circuit T1 is directly electrically connected to the second radiator 121 to adjust the impedance matching characteristics of the second radiator 121 to achieve aperture adjustment. In other embodiments, the first frequency modulation circuit T1 can also be electrically connected to the second matching circuit M2. The first frequency modulation circuit T1 and the second matching circuit M2 form a new matching circuit to adjust the impedance matching characteristics of the second radiator 121. to achieve matching adjustment. As shown in the embodiment shown in FIG. 7 , the second frequency modulation circuit T2 is directly electrically connected to the second radiator 121 to adjust the impedance matching characteristics of the second radiator 121 to achieve aperture adjustment. In other embodiments, the second frequency modulation circuit T2 can also be electrically connected to the third matching circuit M3. The second frequency modulation circuit T2 and the third matching circuit M3 form a new matching circuit to adjust the impedance matching characteristics of the second radiator 121. to achieve matching adjustment.

In an exemplary example, the frequency modulation circuit (such as the first frequency modulation circuit T1, the second frequency modulation circuit T2) may include a combination of a switch and at least one of a capacitor and an inductor; and/or the frequency modulation circuit may include a Variable capacitance. In one embodiment, the frequency modulation circuit may include, but is not limited to, capacitors, inductors, resistors, etc. arranged in series and/or parallel. The frequency modulation circuit may include a branch formed by multiple capacitors, inductors, and resistors connected in series and/or in parallel. and switches that control the on-off of multiple branches. By controlling the on and off of different switches, the frequency selection parameters of the frequency modulation circuit (including resistance value, inductance value and capacitance value) can be adjusted, thereby adjusting the impedance of the second radiator 121 and then adjusting the resonant frequency of the second radiator 21 point. The specific circuit implementation of the frequency modulation circuit in the embodiment of the present application is not intended to limit the scope of protection of the present application. In one embodiment, the frequency modulation circuit may include, but is not limited to, a variable capacitor. By adjusting the capacitance value of the variable capacitor, the frequency modulation parameters of the frequency modulation circuit are adjusted, thereby adjusting the impedance of the second radiator 121 and thereby adjusting the resonant frequency point of the second radiator 121 . By setting the frequency modulation circuit and adjusting the frequency modulation parameters (such as resistance value, capacitance value, and inductance value) of the frequency modulation circuit, the impedance of the second radiator 121 is adjusted so that the resonant frequency point of the second radiator 121 is oriented toward the high frequency band or low frequency range. The frequency band is shifted in a small range, thereby improving the frequency coverage of the second antenna unit 120 in a wider frequency band.

Taking the antenna assembly of the seventh embodiment of the present application as an example, the working principle of the first antenna (Ant1) (corresponding to the first feed source 11) is shown in Figures 8(a) to 8(d), which respectively represent the excitation of Ant1 of four main modes. Combined with Figure 9, Figure 9 is a schematic diagram of the return loss curve of Ant1 transmitting and/or receiving electromagnetic wave signals in the first frequency band in the antenna assembly shown in Figure 7. In Figure 9, the horizontal axis is frequency in MHz; the vertical axis is the return loss (RL, Return Loss), in dB. As shown in Figure 8(a), the first mode is one-eighth to one-quarter wavelength mode from the first reference ground GND1 to the first gap 1112, used to support the emission and/or emission of electromagnetic wave signals in the first sub-band. Or receiving, for convenience of illustration, it is marked as mode 1 in Figure 9; as shown in Figure 8(b), the second mode is a quarter-wavelength mode from the second reference ground GND2 to the first gap 1112, used to support The emission and/or reception of electromagnetic wave signals in the second sub-band is marked as Mode 2 in Figure 9 for convenience of illustration; as shown in Figure 8(c), the third mode is from the first feed point A to the first gap. The quarter-wavelength mode of 1112 is used to support the transmission and/or reception of electromagnetic wave signals in the third sub-band. For convenience of illustration, it is marked as mode 3 in Figure 9; as shown in Figure 8(d), the fourth The mode is a quarter-wavelength mode from the second feed point B to the first slot 1112, which is used to support the transmission and/or reception of electromagnetic wave signals in the fourth sub-band. For convenience of illustration, it is marked as mode 4 in Figure 9 . In one embodiment, Mode 1 to Mode 4 can cover frequency bands such as B1/2/3/4/7/32/39/40/41, N41/77/78/79, etc.

Taking the antenna assembly of the seventh embodiment of the present application as an example, the working principle of the second antenna (Ant2) (corresponding to the second feed source 12) is shown in Figure 10, which means that Ant2 excites the fifth mode. Combined with Figure 11, Figure 11 is a schematic diagram of the return loss curve of Ant2 transmitting and/or receiving electromagnetic wave signals in the second frequency band in the antenna assembly shown in Figure 7. In Figure 11, the horizontal axis is frequency in MHz; the vertical axis is RL, the unit is dB. As shown in Figure 10, the fifth mode is Ant2 fed excitation through capacitive coupling, covering the GPS-L5 frequency band. For convenience of illustration, it is marked as Mode 5 in Figure 11.

Taking the antenna assembly of the seventh embodiment of the present application as an example, the working principle of the third antenna (Ant3) (corresponding to the third feed source 13) is shown in Figures 12(a) to 12(b), which respectively represent the excitation of Ant3 of the two main modes. Combined with Figure 13, Figure 13 is a schematic diagram of the return loss curve of Ant3 transmitting and/or receiving electromagnetic wave signals in the third frequency band in the antenna assembly shown in Figure 7. In Figure 13, the horizontal axis is frequency in MHz; the vertical axis is RL, the unit is dB. As shown in Figure 12(a), the sixth mode is a quarter-wavelength mode from the third reference ground GND3 to the second gap 1213, which is used to support the transmission and/or reception of electromagnetic wave signals in the fifth sub-band. For convenience Schematically, it is marked as mode 6 in Figure 13. As shown in Figure 12(b), the seventh mode is a quarter-wavelength mode from the third feed point E to the second slot 1213, used to support the sixth sub-band. The transmission and/or reception of electromagnetic wave signals is marked as Mode 7 in Figure 13 for convenience of illustration. In one embodiment, Mode 6 and Mode 7 can cover the MHB frequency band.

Figure 14 is a schematic structural diagram of the eighth embodiment of the antenna assembly in the embodiment of the present application. As shown in Figure 14, compared with the seventh embodiment shown in Figure 7, in the eighth embodiment, the second radiator 121 A fifth ground terminal G is also provided, and the fifth ground terminal G is electrically connected to the fifth reference ground GND5. In one embodiment, the second antenna unit 120 further includes a third frequency modulation circuit T3. As shown in Figure 14, one end of the third frequency modulation circuit T2 is electrically connected to the fifth ground terminal G, and the other end of the third frequency modulation circuit T3 is electrically connected to the fifth ground terminal G. The fifth reference ground is GND5.

Taking the antenna assembly of the eighth embodiment of the present application as an example, the working principle of the fourth antenna (Ant4) (corresponding to the fourth feed source 14) is shown in Figures 15(a) to 15(b), which respectively represent the excitation of Ant4 of the two main modes. Combined with Figure 16, Figure 16 is a schematic diagram of the return loss curve of Ant4 transmitting and/or receiving electromagnetic wave signals in the fourth frequency band in the antenna assembly shown in Figure 14. In Figure 16, the horizontal axis is frequency in MHz; the vertical axis is RL, the unit is dB. As shown in Figure 15(a), the eighth mode is a quarter-wavelength mode from the fourth feed point F to the second slot 1213, used to support the transmission and/or reception of electromagnetic wave signals in the seventh sub-band. In order to For convenience of illustration, it is marked as mode 8 in Figure 16. As shown in Figure 15(b), the ninth mode is a quarter-wavelength mode from the fifth reference ground GND5 to the second gap 1213, which is used to support the eighth sub-band. The transmission and/or reception of electromagnetic wave signals is marked as mode 9 in Figure 16 for convenience of illustration. In one embodiment, mode 8 and mode 9 can cover frequency bands such as N77/78/79.

Taking the antenna assembly of the seventh embodiment of the present application as an example, the working principle of Ant4 (corresponding to the fourth feed source 14) is shown in Figure 17, which represents the main mode excited by Ant4, which is mode 8'. In the antenna assembly of the seventh embodiment, the fifth ground terminal G is not provided on the second radiator 121. In this way, the ground return mode 9 shown in Fig. 16 disappears, and the mode 8 shown in Fig. 16 is transformed into the mode shown in Fig. 12 Model 8'. In one embodiment, mode 8' can cover frequency bands such as N77/78. In the two working principles of the antenna assembly shown in Figure 7 and the antenna assembly shown in Figure 14, Ant4 can improve the performance of N77/78 by about 2dB by setting the fifth ground terminal G on the second radiator 121.

Taking the antenna assembly of the seventh embodiment of the present application as an example, the working principle of the fifth antenna (Ant5) (corresponding to the fifth feed source 15) is shown in Figure 18, which represents the main mode excited by Ant5, that is, mode 10. Combined with Figure 19, Figure 16 is a schematic diagram of the return loss curve of Ant5 transmitting and/or receiving electromagnetic wave signals in the fifth frequency band in the antenna assembly shown in Figure 7. In Figure 19, the horizontal axis is frequency in MHz; the vertical axis is RL, the unit is dB. As shown in Figure 18, the tenth mode is one-eighth to one-quarter wavelength mode from the fourth reference ground GND4 to the second gap 1213, used to support the transmission and/or reception of electromagnetic wave signals in the ninth sub-band, For convenience of illustration, it is marked as mode 10 in Figure 19, and capacitive coupling can be used to feed the excitation. In one embodiment, Mode 10 may cover the LB band.

In an illustrative example, as shown in Figure 20, based on the antenna assembly shown in Figure 1 or Figure 2 of the present application, it can also include: a proximity sensor and an inductor L, wherein the suspended metal sheet 121 communicates with the proximity sensor through the inductor L Electrical connection; among them, the suspended metal sheet 121 is used as a proximity sensor electrode to output the induced capacitance. In one embodiment, this induced capacitance represents the proximity of the subject to be detected, such as the human body, to the antenna assembly; the proximity sensor is used to obtain Sensing capacitance to determine whether to reduce power to the antenna assembly.

In one embodiment, the proximity sensor may be an electromagnetic wave absorption ratio sensor (SAR Sensor). As shown in Figure 20, the antenna assembly of the first embodiment of the present application also conveniently detects whether the subject to be detected is close to the antenna assembly, and improves the detection of the approach of the subject to be detected by the electronic device where the antenna assembly is located, thus achieving the goal of intelligently reducing SAR. Purpose.

In an illustrative example, based on the antenna assembly shown in Figures 7 and 14 of this application, it may also include: an isolation device 16, a proximity sensor and an inductor L; wherein,

The isolation device 16 may include a plurality of isolation devices 16 connected between the ground terminal provided on the second radiator 121 and the ground or between the feed point provided on the second radiator 121 and the feed source. Detect the induction signal generated when the subject approaches the second radiator 121 and conduct the electromagnetic wave signal emitted and/or received by the second radiator 121;

The second radiator 121 is electrically connected to the proximity sensor through the inductor L, one end of the inductor L is connected to the proximity sensor, and the other end of the inductor L is connected to one end of an isolation device 16 connected to the second radiator 121; wherein, the second radiator 121 is multiplexed as a proximity sensor electrode and used to output the induced capacitance. In one embodiment, this induced capacitance represents the proximity of the subject to be detected, such as the human body, to the antenna assembly; the proximity sensor is used to obtain the induced capacitance to determine whether Reduce the power of the antenna assembly.

In this embodiment, through human body detection on the second radiator 121, the judgment of the human body approaching state is realized.

In one embodiment, the isolation device 16 may be disposed between the second radiator 121 and the second matching circuit M2, between the second radiator 121 and the first frequency modulation circuit T1, and between the second radiator 121 and the third matching circuit M2. between the circuit M3 and between the second radiator 121 and the second frequency modulation circuit T2. In one embodiment, the isolation device 16 may be disposed between the second radiator 121 and the second matching circuit M2, between the second radiator 121 and the first frequency modulation circuit T1, and between the second radiator 121 and the third matching circuit M2. between the circuit M3, between the second radiator 121 and the second frequency modulation circuit T2, and between the second radiator 121 and the third frequency modulation circuit T3.

In one embodiment, the isolation device 16 may include at least a DC blocking capacitor. Subjects to be detected include but are not limited to the human body.

As shown in Figure 21, in one embodiment, DC blocking capacitors (for example, the capacitance value is 22pF, basically no impact on the antenna), at this time, the second radiator 121 is suspended for the proximity sensor, because the proximity sensor must have a suspended metal body to sense the capacitance change Cuser caused by the proximity of the human body, so as to achieve detection purpose, as shown in Figure 22. In the embodiment shown in Figure 21, taking the detection circuit connected at the second ground terminal C as an example, in one embodiment, the detection circuit is used to isolate a higher frequency inductor L (for example, the inductor L is 82nH) , so that the antenna is basically unaffected. It should be noted that the detection circuit can also be arranged at the second feed point B, the third ground terminal D or the third feed point E, or at any position of the second radiator 121 .

Figure 22 is a schematic diagram of the distribution of electric field lines when the target object is not close to the antenna assembly; Figure 23 is a schematic diagram of the distribution of electric field lines when the target object is close to the antenna assembly. As shown in Figure 22 and Figure 23, the suspended conductive plate can make the approach closer The sensor detects changes in capacitance value caused when the target object approaches the antenna assembly 10 . In FIG. 23 , the target object is the user's finger as an example. It can be understood that in other embodiments, the target object may be, but is not limited to, other parts of the user's body, such as the head. The capacitance value Csensor=Cenv in Figure 22, and the capacitance value Csensor=CEnv+Cuser in Figure 23. Among them, CEnv is the original capacitance value, and Cuser is the change in capacitance when the target object approaches the antenna assembly 10 . It can be seen that the antenna assembly 10 provided by the embodiment of the present application achieves the technical effect of detecting whether the target object is close to the antenna assembly 10 .

In one embodiment, the proximity sensor is a SAR sensor. As shown in Figure 21, the antenna assembly of the seventh embodiment and the antenna assembly of the eighth embodiment of the present application also conveniently detect whether a subject to be detected is close to the antenna assembly, which improves the detection of the approach of the subject to be detected by the electronic device where the antenna assembly is located. , thereby achieving the purpose of intelligently reducing SAR.

In an exemplary example, the antenna assembly 10 in the embodiment of the present application may further include a controller (not shown in the figure). The controller is electrically connected to the end of the proximity sensor away from the inductor L. The controller is used to determine whether the subject to be detected is close to the second radiator 121 based on the size of the inductive capacitance, and to reduce the operating power of the second antenna unit 120 when the subject to be detected is close to the second radiator 121 .

Figure 24 is a schematic structural diagram of an eleventh embodiment of the antenna assembly in the embodiment of the present application. As shown in Figure 24, in one embodiment, the antenna assembly 10 may also include: a fourth radiator 141, and a first The matching circuit M1 is electrically connected and works in the MHB frequency band or the UHB frequency band for extending the bandwidth; and/or the fifth radiator 151 is electrically connected to the fourth matching circuit M4 and works in the UHB frequency band for expanding the bandwidth. In the embodiment of the present application, the bandwidth is expanded by adding antenna branches in the matching circuit.

An embodiment of the present application also provides an electronic device, including the antenna assembly described in any one of the above. Examples of electronic devices may include but are not limited to: mobile phones, tablet computers, notebook computers, PDAs, vehicle-mounted electronic devices, wearable devices, Ultra-Mobile Personal Computers (UMPC, Ultra-Mobile Personal Computer), netbooks or personal digital assistants. (PDA, Personal Digital Assistant), Network Attached Storage (NAS Network Attached Storage), Personal Computer (PC, Personal Computer), TV, teller machine or self-service machine, etc., the embodiments of this application are not specifically limited. Taking the electronic device as a mobile phone as an example, Figure 25 is a schematic diagram of the layout of the antenna assembly in the electronic device according to the embodiment of the present application. As shown in Figure 25, the first antenna unit 110 is placed at the top, and the second antenna unit 120 is placed at the upper corner. , the third antenna unit 130 is disposed on the side. In FIG. 25 , Ant1 corresponds to the first feed source 11 , Ant2 corresponds to the second feed source 12 , Ant3 corresponds to the first feed source 13 , Ant4 corresponds to the first feed source 14 , and Ant5 corresponds to the first feed source 15 . For simplicity, a schematic of the matching circuit is not shown in FIG. 25 . It should be noted that Figure 25 is only an example. The layout of the antenna assembly 10 on the electronic device can be adjusted according to the actual situation. Figure 25 is not used to limit the scope of protection of the present application.

The electronic device provided by the embodiments of the present application is equipped with the antenna assembly 10 provided by any embodiment of the present application, so that the electronic device realizes a multi-antenna community, improves communication quality, and is conducive to the overall miniaturization of the electronic device. Furthermore, it is also convenient to detect SAR to achieve reasonable control of antenna power.

Although the embodiments disclosed in the present application are as above, the described contents are only used to facilitate the understanding of the present application and are not intended to limit the present application. Anyone skilled in the field to which this application belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this application. However, the scope of patent protection of this application still must The scope is defined by the appended claims.

Claims

An antenna assembly, including: a first antenna unit, a second antenna unit and a third antenna unit; wherein,

The first antenna unit includes a first radiator and a first feed source. The first feed source is electrically connected to the first radiator and is used to excite the first radiator to resonate in a first frequency band. The first frequency band includes the mid-to-high frequency MHB frequency band and the ultra-high frequency UHB frequency band;

The second antenna unit includes a second radiator and a third feed source. There is a first gap between the second radiator and the first radiator. The third feed source and the second radiator Electrical connection, used to excite the second radiator to resonate in a third frequency band, the third frequency band includes the MHB frequency band; the second radiator is multiplexed as a proximity sensor electrode, used to sense and represent the subject to be detected to the antenna assembly proximity;

The third antenna unit includes a third radiator and a fifth feed source. There is a second gap between the third radiator and the second radiator. The fifth feed source and the third radiator Electrical connection, used to excite the third radiator to resonate in a fifth frequency band, where the fifth frequency band includes a low-frequency LB frequency band.
The antenna assembly according to claim 1, the third antenna unit further includes a fourth feed source, the fourth feed source is electrically connected to the third radiator, and is used to excite the third radiator to resonate in the third radiator. Four frequency bands, the fourth frequency band includes the UHB frequency band.
The antenna assembly according to claim 1 or 2, wherein at least one ground terminal is provided on the second radiator;

The second antenna unit further includes a first frequency modulation circuit, one end of the first frequency modulation circuit is electrically connected to the ground terminal, and the other end of the first frequency modulation circuit is grounded.
The antenna assembly according to claim 3, the second antenna unit further includes: a third matching circuit; the third matching circuit is provided between the third feed point and the third feed source. After filtering the clutter of the excitation signal transmitted by the third feed source, forming a third radio frequency signal of the third frequency band and transmitting the third radio frequency signal to the second radiator to excite the second The radiator resonates in the third frequency band.
The antenna assembly according to claim 4, the second antenna unit further comprising: a second feed source, the second feed source is electrically connected to the second radiator and used to excite the second radiator to resonate. In the second frequency band, the second frequency band includes the GPS-L5 frequency band;

The second antenna unit further includes: a second matching circuit; the second radiator has a second feed point, and the second matching circuit is provided between the second feed point and the second feed source, for filtering the clutter of the excitation signal transmitted by the second feed source, forming a second radio frequency signal of the second frequency band, and transmitting the second radio frequency signal to the second radiator to excite the third The two radiators resonate in the second frequency band.
The antenna assembly according to claim 2, further comprising: a proximity sensor and an inductor L;

The second radiator is electrically connected to the proximity sensor through the inductor L; wherein the second radiator is used to output the induced capacitance that represents the proximity of the subject to be detected to the antenna assembly; the proximity A sensor is used to obtain the induced capacitance to determine whether to reduce the power of the antenna assembly.
The antenna assembly according to claim 5, further comprising: an isolation device, a proximity sensor and an inductor L;

The isolation device includes a plurality of isolation devices, which are connected between a ground terminal provided on the second radiator and the ground or between a feed point provided on the second radiator and a feed source. Isolate the induction signal generated when the subject to be detected approaches the second radiator and conduct the second radiator;

The second radiator is electrically connected to the proximity sensor through the inductor L, one end of the inductor L is connected to the proximity sensor, and the other end of the inductor L is connected to one of the isolation devices and the second One end of the radiator connection is connected; wherein, the second radiator serves as a proximity sensor electrode and is used to output the induced capacitance indicating the proximity of the subject to be detected to the antenna assembly; the proximity sensor is used to obtain the induction capacitance to determine whether to reduce the power of the antenna assembly.
The antenna assembly according to claim 7, wherein the isolation device is a DC blocking capacitor.
The antenna assembly according to claim 6 or 7, wherein the proximity sensor is an electromagnetic wave absorption ratio SAR sensor.
The antenna assembly according to claim 6 or 7, further comprising a controller electrically connected to an end of the proximity sensor away from the inductor L;

The controller is used to determine whether the subject to be detected is close to the second radiator according to the size of the inductive capacitance, and to reduce the working power of the subject to be detected when it is close to the second radiator.
The antenna assembly according to claim 1, 2, 6 or 7, wherein the first radiator has a first feed point;

The first antenna unit also includes: a first matching circuit; the first matching circuit is provided between the first feed point and the first feed source, and is used to filter the signal transmitted by the first feed source. The clutter of the excitation signal forms a first radio frequency signal in the first frequency band and transmits the first radio frequency signal to the first radiator to excite the first radiator to resonate in the first frequency band.
The antenna assembly according to claim 11, wherein an end of the first radiator away from the first gap is a first ground terminal, and the first ground terminal is electrically connected to a first reference ground.
The antenna assembly according to claim 11, further comprising a fourth radiator for extending bandwidth; the fourth radiator is electrically connected to the first matching circuit and operates in the MHB frequency band or UHB frequency band.
The antenna assembly according to claim 2, 6 or 7, wherein the fourth feed source and the fifth feed source share a line connecting the third radiator;

The third radiator has a fourth feed point, and the fourth feed source is electrically connected to the fourth feed point to excite the third radiator to resonate in the fourth frequency band. The fifth feed source The fourth feeding point is electrically connected to excite the third radiator to resonate in the fifth frequency band.
The antenna assembly according to claim 14, the third antenna unit further includes: a fourth matching circuit and a fifth matching circuit;

The fourth matching circuit is disposed between the fourth feed point and the fourth feed source, and is used to filter clutter of the excitation signal transmitted by the fourth feed source to form a third frequency band of the fourth frequency band. four radio frequency signals and transmit the fourth radio frequency signal to the third radiator to excite the third radiator to resonate in the fourth frequency band;

The fifth matching circuit is disposed between the fourth feed point and the fifth feed source, and is used to filter the noise of the excitation signal transmitted by the fifth feed source to form the third frequency band of the fifth frequency band. and transmitting the fifth radio frequency signal to the third radiator to excite the third radiator to resonate in the fifth frequency band.
The antenna assembly according to claim 15, wherein an end of the third radiator away from the second gap is a fourth ground terminal, and the fourth ground terminal is electrically connected to a fourth reference ground.
The antenna assembly according to claim 13 or 15, further comprising: a fifth radiator for extending bandwidth; the fifth radiator is electrically connected to the fourth matching circuit and operates in the UHB frequency band.
The antenna assembly according to claim 2, 6 or 7, wherein the fourth feed source and the fifth feed source are provided separately, and the fourth feed source is electrically connected to the third radiation through a feed point. body, the fifth feed source is electrically connected to the third radiator through another feed point.
The antenna assembly according to claim 5 or 7, wherein the second radiator has a second feed point, and the second feed source is electrically connected to the second feed point to excite the second The radiator resonates in the second frequency band;

The second radiator has a third feed point, and the third feed source is electrically connected to the third feed point to excite the second radiator to resonate in the third frequency band.
The antenna assembly according to claim 19, the second antenna unit further includes: a second matching circuit and a third matching circuit;

The second matching circuit is disposed between the second feed point and the second feed source, and is used to filter clutter of the excitation signal transmitted by the second feed source to form a third frequency band of the second frequency band. two radio frequency signals and transmit the second radio frequency signal to the second radiator to excite the second radiator to resonate in the second frequency band;

The third matching circuit is disposed between the third feed point and the third feed source, and is used to filter clutter of the excitation signal transmitted by the third feed source to form a third frequency band of the third frequency band. and transmitting the third radio frequency signal to the second radiator to excite the second radiator to resonate in the third frequency band.
The antenna assembly according to claim 20, at least one ground terminal is further provided between the second feed point and the third feed point for electrically connecting to a reference ground.
The antenna assembly according to claim 21, wherein the ground terminal includes a second ground terminal and a third ground terminal; the second ground terminal is electrically connected to a second reference ground, and the third ground terminal is electrically connected to a third ground terminal. Reference place.
The antenna assembly according to claim 22, the second antenna unit further includes a first frequency modulation circuit and/or a second frequency modulation circuit to adjust the impedance matching characteristics of the second radiator;

One end of the first frequency modulation circuit is electrically connected to the second ground terminal, and the other end of the first frequency modulation circuit is connected to the second reference ground; one end of the second frequency modulation circuit is electrically connected to the third ground terminal. , the other end of the second frequency modulation circuit is connected to the third reference ground.
The antenna assembly according to claim 5 or 7, wherein the first radiator has a first feed point, the first feed source is electrically connected to the first feed point; the first radiator One end away from the first gap is a first ground terminal, and the first ground terminal is electrically connected to the first reference ground;

The second radiator has a second feed point, and the second feed source is electrically connected to the second feed point to excite the second radiator to resonate in the second frequency band; the second The radiator has a third feed point, and the third feed source is electrically connected to the third feed point to excite the second radiator to resonate in the third frequency band; the ground terminal includes a second ground terminal and a third ground terminal; the second ground terminal is electrically connected to the second reference ground, and the third ground terminal is electrically connected to the third reference ground;

The third radiator has a fourth feed point, and the fourth feed source is electrically connected to the fourth feed point to excite the third radiator to resonate in the fourth frequency band. The fifth feed source The fourth feed point is electrically connected to excite the third radiator to resonate in the fifth frequency band; one end of the third radiator away from the second gap is a fourth ground end, and the fourth The ground terminal is electrically connected to the fourth reference ground.
The antenna assembly of claim 24, wherein a first antenna corresponding to the first feed is used to generate:

The one-eighth to one-quarter wavelength mode from the first reference ground to the first gap is used to support the transmission and/or reception of electromagnetic wave signals in the first sub-band;

The quarter-wavelength mode from the second reference ground to the first gap is used to support the transmission and/or reception of electromagnetic wave signals in the second sub-band;

The quarter-wavelength mode from the first feed point to the first slot is used to support the transmission and/or reception of electromagnetic wave signals in the third sub-band;

The quarter-wavelength mode from the second feed point to the first slot is used to support the transmission and/or reception of electromagnetic wave signals in the fourth sub-band.
The antenna assembly according to claim 25, wherein the mode covers B1/B2/B3/B4/B7/B32/B39/B40/B41, N41/N 77/N 78/N 79 frequency bands.
The antenna assembly according to claim 24, wherein the second antenna corresponding to the second feed source is fed through capacitive coupling and covers the GPS-L5 frequency band.
The antenna assembly of claim 24, wherein a third antenna corresponding to the third feed source is used to generate:

The quarter-wavelength mode from the third reference ground to the second gap is used to support the transmission and/or reception of electromagnetic wave signals in the fifth sub-band;

The quarter-wavelength mode from the third feed point to the second slot is used to support the transmission and/or reception of electromagnetic wave signals in the sixth sub-band.
The antenna assembly of claim 28, wherein said pattern covers the MHB frequency band.
The antenna assembly according to claim 24, the second radiator is further provided with a fifth ground terminal, the fifth ground terminal is electrically connected to a fifth reference ground; the fourth antenna corresponding to the fourth feed source is Produced by:

The quarter-wavelength mode from the fourth feed point to the second slot is used to support the transmission and/or reception of electromagnetic wave signals in the seventh sub-band;

The quarter-wavelength mode from the fifth reference ground to the second gap is used to support the transmission and/or reception of electromagnetic wave signals in the eighth sub-band.
The antenna assembly of claim 30, wherein the pattern covers the N77/N78/N79 frequency band.
The antenna assembly according to claim 24, wherein the electromagnetic wave signal generated by the fourth antenna corresponding to the fourth feed source covers the N77/N78 frequency band.
The antenna assembly of claim 24, wherein a fifth antenna corresponding to the fifth feed is used to generate:

The fourth reference ground to the one-eighth to one-quarter wavelength mode of the second gap is used to support the transmission and/or reception of electromagnetic wave signals in the ninth sub-band.
The antenna assembly of claim 33, wherein said pattern covers the LB band.
An electronic device including the antenna assembly according to any one of claims 1 to 34.
The electronic device according to claim 35, wherein the first antenna unit in the antenna assembly is disposed on the top of the electronic device, and the second antenna unit in the antenna assembly is disposed on an upper corner of the electronic device. , the third antenna unit in the antenna assembly is disposed on the side of the electronic device.