CN110649368A - Antenna assembly and electronic equipment - Google Patents

Antenna assembly and electronic equipment Download PDF

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Publication number
CN110649368A
CN110649368A CN201910933709.XA CN201910933709A CN110649368A CN 110649368 A CN110649368 A CN 110649368A CN 201910933709 A CN201910933709 A CN 201910933709A CN 110649368 A CN110649368 A CN 110649368A
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CN
China
Prior art keywords
antenna
switch
inductor
resistor
grounding point
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Granted
Application number
CN201910933709.XA
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Chinese (zh)
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CN110649368B (en
Inventor
徐健华
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CERTUSNET CORP
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Jiekai Communications Shenzhen Co Ltd
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Priority to CN201910933709.XA priority Critical patent/CN110649368B/en
Publication of CN110649368A publication Critical patent/CN110649368A/en
Application granted granted Critical
Publication of CN110649368B publication Critical patent/CN110649368B/en
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Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation

Abstract

In the antenna assembly and the electronic device provided by the embodiments of the present application, one end of a first antenna of the antenna assembly is connected to the radio frequency device, and the other end is connected to a first grounding point, a first switch is disposed at a position of the first antenna close to the first grounding point, one end of the second antenna is connected with a second grounding point, a second switch is arranged at the position of the second antenna close to the second grounding point, the second antenna has a connection part connected with the first antenna, the third antenna is disposed between the first switch and the second switch, one end of the fourth antenna is connected with a third grounding point, a third switch is arranged at the position of the fourth antenna close to the third grounding point, the first switch may be connected to the third antenna or to the first ground point, and the second switch may be connected to the third antenna or to the second ground point. The antenna clearance area of the electronic equipment can be reduced to improve the area of the display screen.

Description

Antenna assembly and electronic equipment
Technical Field
The present application relates to the field of electronic devices, and in particular, to an antenna assembly and an electronic device.
Background
With the development of network technology and the improvement of the intelligent degree of electronic equipment, users can realize more and more functions such as conversation, chatting, game playing and the like through the electronic equipment.
The electronic equipment at present pursues the screen to account for than super high, and this kind of electronic equipment not only outward appearance is beautiful, has better user experience simultaneously. The narrow bezel and narrower top and tail areas of the full screen also present a number of problems for antenna design.
The electronic equipment antenna is omnidirectional and needs a clearance area, but the upper frame and the lower frame of the screen of the electronic equipment with the full screen are narrower, the distance between the antenna and the metal middle frame is closer, and the 'clearance' is less than that of the traditional screen. In addition, the influence of devices such as a receiver and a camera of the full-screen electronic equipment needs higher integration level, the distance between the electronic equipment and the antenna is closer, a clearance area left for the antenna is less than that of a traditional screen, and the antenna design challenge is higher.
After the electronic equipment with the full-screen is popularized, the space of the antenna is smaller and smaller, but the frequency bands of the antenna are more and more, and the traditional antenna form cannot be met.
Disclosure of Invention
The embodiment of the application provides an antenna assembly and electronic equipment, which can reduce an antenna clearance area of the electronic equipment so as to improve the area of a display screen.
An embodiment of the present application provides an antenna assembly, includes:
a radio frequency device;
one end of the first antenna is connected with the radio frequency device, the other end of the first antenna is connected with a first grounding point, and a first switch is arranged at the position, close to the first grounding point, of the first antenna;
one end of the second antenna is connected with a second grounding point, a second switch is arranged at a position, close to the second grounding point, of the second antenna, the second antenna is provided with a connecting part, and the connecting part is connected with the first antenna;
a third antenna disposed between the first switch and the second switch;
one end of the fourth antenna is connected with a third grounding point, and a third switch is arranged at the position, close to the third grounding point, of the fourth antenna;
the first switch may be connected to the third antenna or to the first ground point, and the second switch may be connected to the third antenna or to the second ground point.
In some embodiments, the first antenna is configured to radiate a first resonant frequency, the second antenna is configured to radiate a second radiation frequency, the third antenna is configured to radiate a third radiation frequency, and the fourth antenna is configured to radiate a fourth radiation frequency.
In some embodiments, the second switch is connected to a second grounding point, the third switch is connected to the third grounding point, the first switch is connected to the third antenna, the first antenna and the third antenna radiate signals at 600MHz, and the frequency band transmitted and received by the second antenna is 2500 MHz.
In some embodiments, the first switch is connected to a first ground point, the second switch is connected to the third antenna, the third switch is open, the first antenna radiates signals at 850MHz, and the second and third antennas radiate signals at 2500 MHz.
In some embodiments, a first matching circuit is connected to the first antenna, a second matching circuit is connected to the second antenna, and a third matching circuit is connected to the fourth antenna.
In some embodiments, the first matching circuit comprises a first inductor and a first resistor, the first inductor is connected to the ground at one end and the first resistor at the other end, and the second resistor is connected to the second inductor at one end and the second resistor at the other end.
In some embodiments, the second matching circuit includes a second inductor and a second resistor, the second inductor is connected to the second resistor at one end and the other end, and the second resistor is connected to the second inductor at one end and the other end.
In some embodiments, the third matching circuit includes a third inductor, a third resistor, and a third capacitor, the third resistor includes a first end and a second end, the first end is grounded, the second end is connected to the third capacitor, the third inductor is grounded at one end and connected to the first end at the other end, and the third capacitor is grounded at one end and connected to the second end at the other end.
In some embodiments, a filter circuit is further connected to the first antenna.
The embodiment of the application also provides electronic equipment, which comprises an antenna component and a circuit board, wherein the antenna component is the antenna component, the circuit board is provided with a recess, the third antenna is arranged in the recess, and the antenna component is electrically connected with the circuit board
The antenna assembly comprises a radio frequency device, a first antenna, a second antenna, a third antenna and a fourth antenna, wherein one end of the first antenna is connected with the radio frequency device, the other end of the first antenna is connected with a first grounding point, a first switch is arranged at the position, close to the first grounding point, of the first antenna, one end of the second antenna is connected with a second grounding point, a second switch is arranged at the position, close to the second grounding point, of the second antenna, the second antenna is provided with a connecting part, the connecting part is connected with the first antenna, the third antenna is arranged between the second switches of the first switch, one end of the fourth antenna is connected with the third grounding point, a third switch is arranged at the position, close to the third grounding point, of the fourth antenna, and the first switch can be connected with the third antenna or connected with the first grounding point, the second switch may be connected to the third antenna or to the second ground point. The antenna clearance area of the electronic equipment can be reduced to improve the area of the display screen.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of an antenna assembly provided in an embodiment of the present application.
Fig. 2 is another schematic structural diagram of an antenna assembly provided in an embodiment of the present application.
Fig. 3 is a schematic structural diagram of an antenna assembly provided in an embodiment of the present application.
Fig. 4 is a schematic view of another structure of an antenna assembly according to an embodiment of the present application
Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 6 is a schematic flowchart illustrating a handover method according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides an antenna assembly and an electronic device, and the antenna assembly is described in detail below.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an antenna assembly according to an embodiment of the present application. In an embodiment of the present invention, an antenna assembly 10 includes a radio frequency device 101, a first antenna 102, a second antenna 103, a third antenna 104, and a fourth antenna 105, where one end of the first antenna 102 is connected to the radio frequency device 101, and the other end is connected to a first ground point 106, a first switch 110 is disposed at a position of the first antenna 102 close to the first ground point 106, one end of the second antenna 103 is connected to a second ground point 107, a second switch 111 is disposed at a position of the second antenna 103 close to the second ground point 107, the second antenna 103 has a connection portion 109, the connection portion 109 is connected to the first antenna 102, the third antenna 104 is disposed between the first switch 110 and the second switch 111, one end of the fourth antenna 105 is connected to a third ground point 108, a third switch 112 is disposed at a position of the fourth antenna 105 close to the third ground point 108, the first switch 110 may be connected to the third antenna 104 or to the first ground point 106, and the second switch 111 may be connected to the third antenna 104 or to the second ground point 107.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The term "connected" is to be understood broadly, for example, as being fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the rf device 101 is an antenna rf device 101, and the rf device 101 may emit an rf signal. In addition, the first antenna 102, the second antenna 103, the third antenna 104, and the fourth antenna 105 may be radiators. The radiator is used for receiving and transmitting antenna signals. Of course, the radiator may be a metal sheet, such as a copper sheet, a steel sheet, or the like. In the embodiment of the present application, the specific material of the radiator is not limited. The first antenna 102, the second antenna 103, the third antenna 104, and the fourth antenna 105 may be printed antennas, patch antennas, or the like. The specific form adopted by the antenna is not described in detail in the application.
In addition, the first switch 110 and the second switch 111 are switching switches, the first switch 110 is switchable between the first ground point 106 and the third antenna 104, and the second switch 111 is switchable between the second ground point and the third antenna 104. The first antenna 102 and the third antenna 104 are connected by switching the first switch 110 or the second antenna 103 and the third antenna 104 are connected by switching the second switch, so that signals of different frequency bands can be transmitted and received. Therefore, under the condition that the antenna clearance area is smaller, the diversity of the antenna radiation signals can be improved, and the antenna clearance area of the electronic device 100 can be reduced to improve the area of the display screen.
Wherein the first antenna 102 is configured to radiate a first resonant frequency, the second antenna 103 is configured to radiate a second radiation frequency, the third antenna 104 is configured to radiate a third radiation frequency, and the fourth antenna 105 is configured to radiate a fourth radiation frequency.
It should be noted that, the first antenna 102631 may transceive low frequency band (700-. The fourth antenna 105 can transmit and receive GPS (Global Positioning System) and WIFI (wireless local area network) 2.4G/5G signals. The fourth antenna 105 is not limited to transmitting and receiving GPS and WIFI2.4G/5G signals, and may transmit and receive other signals. It should be noted that the first antenna 102, the second antenna 103, the third antenna 104, and the fourth antenna 105 are not limited to transceiving signals in a low frequency band, a middle frequency band, and a high frequency band, and may also transceive other signals, such as millimeter wave signals.
The second switch 111 is connected to the second grounding point 107, the third switch 112 is connected to the third grounding point 108, the first switch 110 is connected to the third antenna 104, the radiation signals of the first antenna 102 and the third antenna 104 are 600MHz, and the frequency band transmitted and received by the second antenna 103 is 2500 MHz.
It should be noted that, when the second switch 111 is connected to the second grounding point 107, the third switch 112 is connected to the third grounding point 108, the first switch 110 is connected to the third antenna 104, and the first antenna 102 is connected to the third antenna 104, the length of the first antenna 102 is increased, so that the first antenna 102 can radiate signals of more frequency bands, for example, 600MHz can be radiated after the first antenna 102 is connected to the third antenna 104, and the second antenna 103 can radiate signals of 2500 MHz.
The first switch 110 is connected to the first ground point 106, the second switch 111 is connected to the third antenna 104, the third switch 112 is turned off, the radiation signal of the first antenna 102 is 850MHz, and the radiation signal of the second antenna 103 and the third antenna 104 is 2500 MHz.
It should be noted that, when the first switch 110 is connected to the first grounding point 106, the second switch 111 is connected to the third antenna 104, and the third switch 112 is disconnected, the second antenna 103 is connected to the third antenna 104, which is equivalent to increasing the length of the second antenna 103, so that the second antenna 103 and the third antenna 104 can radiate signals of more frequency bands, for example, 2500MHz can be radiated after the second antenna 103 and the third antenna 104 are connected, and the signal radiated by the first antenna 102 is 850 MHz.
Referring to fig. 2, fig. 2 is another schematic structural diagram of an antenna element according to an embodiment of the present application. A first matching circuit 120 is connected to the first antenna 102, a second matching circuit 130 is connected to the second antenna 103, and a third matching circuit 140 is connected to the fourth antenna 105.
It should be noted that the first matching circuit 120, the second matching circuit 130, and the third matching circuit 140 may match impedances between the radio frequency device 101 and the first antenna 102, the second antenna 103, and the third antenna 104, thereby improving radiation efficiency of the first antenna 102, the second antenna 103, and the third antenna 104. In addition, the first matching circuit 120, the second matching circuit 130, and the third matching circuit 140 may match impedances between the first antenna 102, the second antenna 103, and the third antenna 104 to 50 ohms, which may cause the first antenna 102, the second antenna 103, and the third antenna 104 to have relatively good radiation effects.
The first matching circuit 120 includes a first inductor 121 and a first resistor 122, one end of the first inductor 121 is grounded, the other end is connected to the first resistor 122, and one end of the second resistor 132 is connected to the second inductor 131, and the other end is grounded.
It should be noted that the first inductor 121 may be a variable inductor, and the first inductor 121 is adjusted to change the impedance of the first antenna 102, so that the radiation efficiency of the first antenna 102 is higher.
The second matching circuit 130 includes a second inductor 131 and a second resistor 132, wherein one end of the second inductor 131 is grounded, the other end of the second inductor 131 is connected to the second resistor 132, and one end of the second resistor 132 is connected to the second inductor 131 and the other end of the second resistor 132 is grounded.
It should be noted that the second inductor 131 may be a variable inductor, and the second inductor 131 is adjusted to change the impedance of the second antenna 103, so that the radiation efficiency of the second antenna 103 is higher.
The third matching circuit 140 includes a third inductor 141, a third resistor 142 and a third capacitor 143, where the third resistor 142 includes a first end and a second end, the first end is grounded, the second end is connected to the third capacitor 143, one end of the third inductor 141 is grounded, the other end is connected to the first end, and one end of the third capacitor 143 is grounded, and the other end is connected to the second end.
It should be noted that the third inductor 141 may be a variable inductor, the third capacitor 143 may be a variable capacitor, and the third inductor 141 and the third capacitor 143 are adjusted, so that the impedance of the third antenna 104 can be changed, and the radiation efficiency of the third antenna 104 is higher.
Referring to fig. 4 and 4, fig. 3 is a schematic structural diagram of an antenna assembly according to an embodiment of the present application, and fig. 4 is a schematic structural diagram of another antenna assembly according to an embodiment of the present application, wherein a filter circuit 150 is further connected to the first antenna 102.
It should be noted that the filter circuit 150 may filter out the noise on the first antenna 102, so that the first antenna 102 radiates stronger signals. Specifically, the filter circuit 150 may include a first sub-filter circuit 150 and a second sub-filter circuit 150, and the first sub-filter circuit 150 and the second sub-filter circuit 150 are connected in series. The first sub-filter circuit 150 includes a fourth resistor 151, a fourth capacitor 152, a fifth capacitor 153, a sixth capacitor 154, and a fourth inductor 155, one end of the fourth resistor 151 is connected to the radio frequency device 101, and the other end is connected to the fourth capacitor 12, one end of the fourth capacitor 152 is connected to the fourth resistor 151, and the other end is connected to the fourth inductor 155, one end of the fifth capacitor 153 is connected between the fourth resistor 151 and the fourth capacitor 152, and the other end is connected to the sixth capacitor 154, one end of the sixth capacitor 154 is connected to the fifth capacitor 153, and the other end is grounded, one end of the fourth inductor 155 is connected to the fourth capacitor 152, and the other end is grounded.
In addition, the second sub-filter circuit 150 includes a fifth resistor 156, a seventh capacitor 157, and a fifth inductor 158, one end of the seventh capacitor 157 is grounded, the other end is connected to the fifth resistor 156, one end of the fifth resistor 156 is connected to the seventh capacitor 157, the other end is connected to the fifth inductor 158, and one end of the fifth inductor 158 is connected to the fifth resistor 156, and the other end is grounded.
The antenna assembly 10 of the present application includes a radio frequency device 101, a first antenna 102, a second antenna 103, a third antenna 104 and a fourth antenna 105, wherein one end of the first antenna 102 is connected to the radio frequency device 101, the other end is connected to a first grounding point 106, the first antenna 102 is provided with a first switch 110 at a position close to the first grounding point 106, one end of the second antenna 103 is connected to a second grounding point 107, the second antenna 103 is provided with a second switch 111 at a position close to the second grounding point 107, the second antenna 103 is provided with a connecting portion 109, the connecting portion 109 is connected to the first antenna 102, the third antenna 104 is provided between the first switch 110 and the second switch 111, one end of the fourth antenna 105 is connected to a third grounding point 108, the fourth antenna 105 is provided with a third grounding point 112 at a position close to the third grounding point 108, and the first switch 110 can be connected to the third antenna 104 or connected to the first antenna 106, the second switch 111 may be connected to the third antenna 104 or to the second ground point 107. The embodiment of the application can reduce the antenna clearance area of the electronic device 100 to increase the area of the display screen
Referring to fig. 5, fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The embodiment of the application further provides an electronic device 100, and the electronic device 100 may be a smart phone, a tablet computer, or the like.
The electronic device 100 provided by the embodiment of the present application includes an antenna component 10 and a circuit board 20, where the antenna component 10 is the above antenna component 10, the circuit board 20 has a recess 21, the third antenna 104 is disposed in the recess 21, and the antenna component 10 is electrically connected to the circuit board 20.
It should be noted that the antenna assembly 10 has been described in detail in the foregoing embodiment, and the antenna assembly 10 in the embodiment of the present application may refer to the antenna assembly 10 of the foregoing embodiment, and the detailed description of the antenna assembly 10 is omitted here.
In some embodiments, the electronic device 100 comprises a middle frame comprising a top and a bottom arranged oppositely, the circuit board 20 is arranged on the top of the middle frame, the circuit board 20 is provided with a recess 21, wherein the first antenna 102 is arranged on the top of the circuit board 20, the second antenna 103 is arranged on the right side of the circuit board 20, the third antenna 104 is arranged in the recess 21, and the fourth antenna 105 is arranged on the left side of the circuit board 20.
It should be noted that the circuit board 20 may be a main board of the electronic device 100. Wherein the processor of the electronic device 100 may be disposed on the circuit board 20. One, two or more of the functional components such as a motor, a microphone, a speaker, a receiver, an earphone interface, a universal serial bus interface (USB interface), a camera, a distance sensor, an ambient light sensor, a gyroscope, etc. may also be integrated on the circuit board 20. Meanwhile, the display screen may be electrically connected to the circuit board 20.
In some embodiments, display control circuitry is provided on circuit board 20. And the display control circuit outputs an electric signal to the display screen so as to control the display screen to display information.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
Referring to fig. 6, fig. 6 is a schematic flowchart illustrating a handover method according to an embodiment of the present disclosure. An embodiment of the present application further provides an antenna switching method, where the antenna switching method is applied to the antenna assembly, and the method includes the steps of:
201. when the second switch is connected to a second grounding point, the third switch is connected to the third grounding point, and the first switch is connected to the third antenna;
202. when the first switch is connected to the first grounding point, the third switch is turned off, and the second switch is connected to the third antenna.
It should be noted that, by using this antenna switching method, the lengths of the first antenna and the second antenna are changed, so that the first antenna, the second antenna and the third antenna can radiate signals of more frequency bands.
In addition, the antenna assembly in the embodiment of the present application may refer to the antenna assembly in the above embodiment, and redundant description of the antenna assembly is not repeated in the embodiment of the present application.
The antenna assembly and the electronic device provided by the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. An antenna assembly, comprising:
a radio frequency device;
one end of the first antenna is connected with the radio frequency device, the other end of the first antenna is connected with a first grounding point, and a first switch is arranged at the position, close to the first grounding point, of the first antenna;
one end of the second antenna is connected with a second grounding point, a second switch is arranged at a position, close to the second grounding point, of the second antenna, the second antenna is provided with a connecting part, and the connecting part is connected with the first antenna;
a third antenna disposed between the first switch and the second switch;
one end of the fourth antenna is connected with a third grounding point, and a third switch is arranged at the position, close to the third grounding point, of the fourth antenna;
the first switch may be connected to the third antenna or to the first ground point, and the second switch may be connected to the third antenna or to the second ground point.
2. The antenna assembly of claim 1, wherein the first antenna is configured to radiate a first resonant frequency, the second antenna is configured to radiate a second radiating frequency, the third antenna is configured to radiate a third radiating frequency, and the fourth antenna is configured to radiate a fourth radiating frequency.
3. The antenna assembly of claim 2, wherein the second switch is connected to a second ground point, the third switch is connected to a third ground point, the first switch is connected to the third antenna, the first and third antennas radiate signals at 600MHz, and the second antenna radiates signals at 2500 MHz.
4. The antenna assembly of claim 2, wherein the first switch is connected to a first ground point, the second switch is connected to the third antenna, the third switch is open, the first antenna radiating signal is 850MHz, and the second and third antenna radiating signals are 2500 MHz.
5. The antenna assembly of claim 1, wherein a first matching circuit is coupled to the first antenna, a second matching circuit is coupled to the second antenna, and a third matching circuit is coupled to the fourth antenna.
6. The antenna assembly of claim 5, wherein the first matching circuit comprises a first inductor and a first resistor, the first inductor being connected to ground at one end and to the first resistor at the other end, and the second resistor being connected to the second inductor at one end and to ground at the other end.
7. The antenna assembly of claim 5, wherein the second matching circuit comprises a second inductor and a second resistor, the second inductor being connected to ground at one end and to the second resistor at the other end, and the second resistor being connected to ground at one end and to the second inductor at the other end.
8. The antenna assembly of claim 5, wherein the third matching circuit comprises a third inductor, a third resistor, and a third capacitor, wherein the third resistor comprises a first terminal and a second terminal, the first terminal is connected to ground, the second terminal is connected to the third capacitor, the third inductor is connected to ground at one terminal and to the first terminal, and the third capacitor is connected to ground at one terminal and to the second terminal.
9. The antenna assembly of claim 1, wherein a filter circuit is further coupled to the first antenna.
10. An electronic device comprising an antenna assembly according to any one of claims 1 to 9 and a circuit board, the circuit board having a recess, the third antenna being disposed in the recess, the antenna assembly being electrically connected to the circuit board.
CN201910933709.XA 2019-09-29 2019-09-29 Antenna assembly and electronic equipment Active CN110649368B (en)

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CN201910933709.XA CN110649368B (en) 2019-09-29 2019-09-29 Antenna assembly and electronic equipment

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CN110649368A true CN110649368A (en) 2020-01-03
CN110649368B CN110649368B (en) 2021-09-28

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