CN110808466A - Antenna module and terminal - Google Patents
Antenna module and terminal Download PDFInfo
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- CN110808466A CN110808466A CN201911116668.1A CN201911116668A CN110808466A CN 110808466 A CN110808466 A CN 110808466A CN 201911116668 A CN201911116668 A CN 201911116668A CN 110808466 A CN110808466 A CN 110808466A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The embodiment of the application provides an antenna module and a terminal. The antenna module comprises a first feed part, a second feed part, a four-port network, a first antenna and a second antenna; the first feed part is connected with a first port of the four-port network, and the second feed part is connected with a second port of the four-port network; a third port of the four-port network is connected with the first antenna, and a fourth port of the four-port network is connected with the second antenna; when the first feed portion sends out a first radio-frequency signal, the first port is an input port, the second port is an isolation port, the third port is a through port, and the fourth port is a coupling port; when the second feed portion sends out a second radio-frequency signal, the second port is an input port, the first port is an isolation port, the third port is a coupling port, and the fourth port is a through port. According to the embodiment of the application, the isolation between the first feeding portion and the second feeding portion is improved, and the ECC between the first antenna and the second antenna is reduced, so that high communication efficiency is guaranteed.
Description
Technical Field
The embodiment of the application relates to the technical field of terminals, in particular to an antenna module and a terminal.
Background
With the rapid development of communication technology and terminal technology, the requirement for communication efficiency is higher and higher.
In the related art, MIMO (Multiple-Input Multiple-Output) technology is used to improve communication efficiency. The MIMO technology is a technology that uses a plurality of transmitting antennas and receiving antennas at a transmitting end and a receiving end, respectively, so that signals are transmitted and received through the plurality of antennas of the transmitting end and the receiving end, thereby improving communication efficiency.
Disclosure of Invention
The embodiment of the application provides an antenna module and a terminal. The technical scheme is as follows:
on one hand, the embodiment of the application provides an antenna module, which comprises a first feeding part, a second feeding part, a four-port network, a first antenna and a second antenna;
the first feed part is connected with a first port of the four-port network, and the second feed part is connected with a second port of the four-port network;
a third port of the four-port network is connected with the first antenna, and a fourth port of the four-port network is connected with the second antenna;
when the first feed portion sends out a first radio-frequency signal, the first port is an input port, the second port is an isolation port, the third port is a through port, and the fourth port is a coupling port;
when the second feed portion sends out a second radio frequency signal, the second port is the input port, the first port is the isolation port, the third port is the coupling port, and the fourth port is the through port.
In another aspect, an embodiment of the present application provides a terminal, where the terminal includes the antenna module according to the above aspect.
The technical scheme provided by the embodiment of the application can bring the following beneficial effects:
the second feed is connected to the second port of the four-port network by connecting the first feed to the first port of the four-port network. When the first feed part sends out a first radio-frequency signal, the first port is an input port, and the second port is an isolation port; when the second feed portion sends out a second radio-frequency signal, the second port is an input port, and the first port is an isolation port. The first radio frequency signal sent by the first feeding portion cannot be coupled to the second feeding portion, the second radio frequency signal sent by the second feeding portion cannot be coupled to the first feeding portion, interference between the first feeding portion and the second feeding portion is reduced, and therefore the isolation between the first feeding portion and the second feeding portion is improved, and correspondingly, the ECC (error correction code) between the first antenna and the second antenna is reduced, and therefore high communication efficiency is guaranteed.
Drawings
Fig. 1 is a schematic diagram of an antenna module according to an embodiment of the present application;
fig. 2 is a schematic diagram of an antenna module according to another embodiment of the present application;
fig. 3 is a schematic diagram of an antenna module according to another embodiment of the present application;
fig. 4 is a schematic diagram of an S parameter between a first antenna and a second antenna provided by an embodiment of the present application;
FIG. 5 is a schematic diagram of system efficiency of a first antenna and a second antenna provided by one embodiment of the present application;
fig. 6 is a schematic diagram of an S-parameter between a first antenna and a second antenna provided by another embodiment of the present application;
FIG. 7 is a schematic diagram of system efficiency of a first antenna and a second antenna provided by another embodiment of the present application;
FIG. 8 is a schematic diagram of ECC between a first antenna and a second antenna provided by one embodiment of the present application;
fig. 9 is a schematic view of an antenna module according to another embodiment of the present application;
fig. 10 is a schematic diagram of a terminal provided in an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
The correlation of the MIMO antenna includes both signal correlation and envelope correlation, the former refers to the relationship between signals received from other antennas, and the latter refers to the degree of similarity between signals. Good antenna diversity in MIMO systems ensures high communication capacity, the diversity effect depending on the antenna correlation. Generally, for the convenience of research, the magnitude of the correlation between the antenna elements is calculated by using envelope correlation coefficients. The most common calculation methods at present are mainly two, one of which is:
wherein S is11、S22Representing the impedance matching of the antenna elements, S21、S12Indicating the degree of isolation, S, between the antenna elementsT 11Denotes S11Transposed result of (1), ST 21Denotes S21Transposed result of (8), ηradRepresenting the radiation efficiency of the antenna.
As can be seen from equation (1), the size of the ECC is mainly related to the impedance matching of the antenna elements, the radiation efficiency of the antenna, and the isolation between the antenna elements. For MIMO antennas, impedance matching and radiation efficiency do not have much impact on ECC, and isolation is a key factor in determining ECC. Therefore, it is important to reduce the coupling of the antenna elements and improve the isolation of the antenna.
As shown in fig. 1, a schematic diagram of an antenna module according to an embodiment of the present application is shown. The antenna module 100 includes a first feeding portion 101, a second feeding portion 102, a four-port network 103, a first antenna 104 and a second antenna 105.
The first feeding portion 101 may be used to feed a radio frequency signal to the first antenna 104 and/or the second antenna 105; the second feeding portion 102 may be used to enable feeding of radio frequency signals to the first antenna 104 and/or the second antenna 105. The antenna module may further include a first antenna PCB (Printed Circuit Board) and a second antenna PCB. The first feeding portion 101 may be disposed on a first antenna PCB and the second feeding portion 102 may be disposed on a second antenna PCB, alternatively, the first antenna PCB and the second antenna PCB may be one antenna PCB. A four port network 103 refers to a network having four ports for connection to external circuits.
The first feed 101 is connected to a first port 103a of the four-port network 103, and the second feed 102 is connected to a second port 103b of the four-port network 103; the third port 103c of the four-port network 103 is connected to a first antenna 104 and the fourth port 103d of the four-port network 103 is connected to a second antenna 105.
The first antenna 104 includes a feed point, a ground point, and at least one radiating arm of the first antenna 104. The radiation arm is a portion of the first antenna 104 for radiating electromagnetic waves outward. The feeding point of the first antenna 104 is used to enable feeding of radio frequency signals to the radiating arms. The grounding point is used for grounding at least one radiation arm. The number of grounding points can be 1, or a plurality of grounding points, such as 2, 3 or more. The multiple grounding points are arranged on the first antenna 104, so that frequency band requirements of different operator versions can be met. Illustratively, the third port 103c may be connected to a feeding point of the first antenna 104.
The second antenna 105 includes a feed point, a ground point, and at least one radiating arm of the second antenna 105. The radiation arm is a portion for radiating electromagnetic waves outward in the second antenna 105. The feeding point of the second antenna 105 is used to enable feeding of radio frequency signals to the radiating arms. The grounding point is used for grounding at least one radiation arm. The number of grounding points can be one, or a plurality of grounding points, such as 2, 3 or more. The multiple grounding points are arranged on the second antenna 105, so that frequency band requirements of different operator versions can be met. Illustratively, the fourth port 103d may be connected to a feed point of the second antenna 105.
Illustratively, the first antenna 104 and the second antenna 105 are inverted-F antennas. Of course, in other possible implementations, the first antenna 104 and the second antenna 105 may be a monopole antenna, a T-shaped antenna, a PIFA (Planar Inverted-F antenna), a LDS (Laser Direct Structuring) antenna, a FPC (Flexible Printed Circuit board) antenna, or the like. The working frequency band of the first antenna and the second antenna is a Sub6G frequency band (below 6 GHz) in a 5G frequency band.
Illustratively, the impedance of the first feed 101 matches the impedance of the first port 103a, the impedance of the second feed 102 matches the impedance of the second port 103b, the impedance of the third port 103c matches the impedance of the first antenna 104, and the impedance of the fourth port 103d matches the impedance of the second antenna 105. At this time, when the first feeding portion 101 sends out the first radio frequency signal, the first port 103a is an input port, the second port 103b is an isolation port, the third port 103c is a through port, and the fourth port 103d is a coupled port; when the second feeding portion 102 emits the second radio frequency signal, the second port 103b is an input port, the first port 103a is an isolated port, the third port 103c is a coupled port, and the fourth port 103d is a through port.
Illustratively, when a radio frequency signal is input from the first port 103a, the third port 103c and the fourth port 103d are output with equal amplitude and in phase, while the second port 103b has no output; when the rf signal is input from the second port 103b, the third port 103c and the fourth port 103d are output in equal amplitude and in opposite phase, while the first port 103a has no output.
To sum up, in the technical solution provided in the embodiment of the present application, the first feeding portion is connected to the first port of the four-port network, and the second feeding portion is connected to the second port of the four-port network. When the first feed part sends out a first radio-frequency signal, the first port is an input port, and the second port is an isolation port; when the second feed portion sends out a second radio-frequency signal, the second port is an input port, and the first port is an isolation port. The first radio-frequency signal sent by the first feeding portion cannot be coupled to the second feeding portion, the second radio-frequency signal sent by the second feeding portion cannot be coupled to the first feeding portion, interference between the first feeding portion and the second feeding portion is reduced, and therefore the isolation between the first feeding portion and the second feeding portion is improved, accordingly, ECC between the first antenna and the second antenna is reduced, and high communication efficiency is guaranteed.
In practical applications, there may be situations where the impedance of the feed or antenna and the ports of the four-port network 103 do not match. In this case, a matching circuit needs to be added to the antenna module 100 so that the impedance of the feeding unit or the antenna matches the impedance of the port of the four-port network 103. Fig. 2 is a schematic diagram of an antenna module according to another embodiment of the present application.
The antenna module 100 further includes a first matching circuit 106, a second matching circuit 107, a third matching circuit 108, and a fourth matching circuit 109.
The first feeding portion 101 is connected to an input end of a first matching circuit 106, and an output end of the first matching circuit 106 is connected to the first port 103 a; the second feeding portion 102 is connected to an input end of the second matching circuit 107, and an output end of the second matching circuit 107 is connected to the second port 103 b; the third port 103c is connected to an input terminal of a third matching circuit 108, and an output terminal of the third matching circuit 108 is connected to the first antenna 104; the fourth port 103d is connected to an input of a fourth matching circuit 109, and an output of the fourth matching circuit 109 is connected to the second antenna 105.
The first matching circuit 106 is configured to implement impedance matching between the first feeding portion 101 and the first port 103 a; the second matching circuit 107 is used for realizing impedance matching between the second feeding portion 102 and the second port 103 d; the third matching circuit 108 is configured to implement impedance matching between the first antenna 104 and the third port 103 c; the fourth matching circuit 109 is used to realize impedance matching between the second antenna 105 and the fourth port 103 d.
In the embodiment of the present application, the first matching circuit 106 realizes impedance matching from the first port 103a to the first feeding section 101, the second matching circuit 107 realizes impedance matching from the second port 103b to the second feeding section 102, the third matching circuit 108 realizes impedance matching from the third port 103c to the first antenna 104, and the fourth matching circuit 109 realizes impedance matching from the fourth port 103d to the second antenna 105.
To sum up, in the technical scheme provided in the embodiment of the present application, the impedance of the external circuit is matched with the impedance of the four-port network by adding the matching circuit, so as to improve the performance of the four-port network.
In one example, as shown in fig. 3, the first matching circuit 106 includes a first inductance L1 and a first capacitance C1, the second matching circuit 107 includes a second inductance L2 and a second capacitance C2, the third matching circuit 108 includes a third capacitance C3, and the fourth matching circuit 109 includes a fourth capacitance C4.
One end of the first capacitor C1 is grounded, the other end of the first capacitor C1 is connected to the first power feed 101 and one end of the first inductor L1, and the other end of the first inductor L1 is connected to the first port 103 a.
One end of the second capacitor C2 is grounded, the other end of the second capacitor C2 is connected to the second feeding portion 102 and one end of the second inductor L2, and the other end of the second inductor L2 is connected to the second port 103 b.
The third port is connected to one terminal of a third capacitor C3, the other terminal of the third capacitor C3 being connected to the first antenna 104.
The fourth port is connected to one terminal of a fourth capacitor C4, the other terminal of the fourth capacitor C4 being connected to the second antenna 105.
In the present embodiment, the four-port network 103 is a directional coupler. A directional coupler is an element that places two transmission lines close enough together so that power on one line can be coupled to the other. Optionally, the degree of coupling of the directional coupler is 3dB, and in this case, the directional coupler may be referred to as a 3dB directional coupler.
Illustratively, assume that the impedances of the four ports of the directional coupler are all 50 Ω. The impedance of the first feeding unit 101 and the second feeding unit 102 is matched, and the first matching circuit 106 and the second matching circuit 107 have the same inductance L of 3nH and the same capacitance C of 1.3 pF. The impedance of the first antenna 104 and the second antenna 105 are matched, and the third matching circuit 108 and the fourth matching circuit 109 have the same capacitance C, which is 1.2 pF.
In the case where the antenna module 100 does not include the matching circuit and the four-port network 103, the S-parameter between the first antenna 104 and the second antenna 105 is as shown in fig. 4, and the system efficiency of the first antenna (e1)104 and the second antenna (e2)105 is as shown in fig. 5. In the case where the antenna module 100 includes a matching circuit and a four-port network 103, S-parameters between the first antenna 104 and the second antenna 105 are shown in fig. 6, S-parameters between the first antenna 104 and the second antenna 105 are shown in fig. 7, and ECC between the first antenna 104 and the second antenna 105 is shown in fig. 8. With combined reference to fig. 4 and 6, it can be seen that the isolation of the antenna operating in the 3.6GHz band has been reduced to below-18 dB. With combined reference to fig. 5 and 7, it can be seen that the system performance of the first antenna 104 and the second antenna 105 is significantly improved. The ECC shown in fig. 8 is small and the diversity effect between the first antenna 104 and the second antenna 105 is good.
In another example, as shown in fig. 9, the first matching circuit 106 includes a third inductance L3 and a fourth inductance L4, the second matching circuit 107 includes a fifth capacitance C5 and a sixth capacitance C6, the third matching circuit 108 includes a seventh capacitance C7 and a fifth inductance L5, and the fourth matching circuit 109 includes an eighth capacitance C8.
One end of the third inductor L3 is connected to the first feeding portion 101, the other end of the third inductor L3 is connected to the first port 103a and one end of the fourth inductor L4, and the other end of the fourth inductor L4 is grounded.
The size of the third inductor L3 is 4nH, and the size of the fourth inductor L4 is 4 nH.
The second feeding portion 102 is connected to one end of a fifth capacitor C5, the other end of the fifth capacitor C5 is connected to the second port 103b, one end of a sixth capacitor C6 is connected to the second port 103b, and the other end of the sixth capacitor C6 is grounded.
The fifth capacitor C5 has a size of 0.8pF and the sixth capacitor C6 has a size of 0.2 pF.
The third port 103C is connected to one end of a fifth inductor L5, the other end of the fifth inductor L5 is connected to the first antenna 104, one end of a sixth capacitor C6 is connected to the first antenna 104, and the other end of the sixth capacitor C6 is grounded.
The size of the fifth inductor L5 is 3nH, and the size of the seventh capacitor C7 is 0.4 pF.
The fourth port 103d is connected to one end of an eighth capacitor C8, the other end of the eighth capacitor C8 is grounded, and one end of an eighth capacitor C8 is connected to the second antenna 105.
The size of the eighth capacitor C8 is 0.8 pF.
In the embodiment of the present application, the four port network is a 180 ° hybrid network. Optionally, the coupling degree of the 180 ° hybrid network is 3dB, and in this case, the 180 ° hybrid network may be referred to as a 3dB 180 ° hybrid network.
It should be noted that the above description of the matching circuit is merely exemplary, and may be set according to the actual situation of the first feeding unit 101, the second feeding unit 102, the first antenna 104, and the second antenna 105.
Fig. 10 is a schematic diagram of a terminal according to an embodiment of the present application. As shown in fig. 10, the terminal 10 includes the antenna module 100 provided in the above embodiment. The first antenna 104 and the second antenna 105 are inverted F antennas. The first antenna 104 includes a first radiating arm 11, a first feeding point 12 and a first grounding point 13 of the first antenna 104 thereon, and the second antenna 105 includes a second radiating arm 14, a second feeding point 15 and a second grounding point 16 of the second antenna 105 thereon. The first and second radiating arms 11 and 12 may be part of a middle frame of the terminal. The first grounding point 13 and the second grounding point 16 may be the same grounding point or different grounding points. The first feeding point 11 of the first antenna 104 is connected to the third port 103c, the second feeding point 15 of the second antenna 105 is connected to the fourth port 103d, the first feeding portion 101 is connected to the first port 103a, and the second feeding portion 102 is connected to the second port 103 b. The terminal 10 includes a Radio Frequency Integrated Circuit (RFIC) 17, the RFIC 17 is a circuit for transmitting a Radio Frequency signal to an antenna, and the first feeding portion 101 and the second feeding portion 102 may be disposed on the RFIC 17.
It should be noted that, in the embodiment of the present application, the location of the antenna module 100 inside the terminal 10 is not limited, for example, in fig. 10, the antenna module 100 is disposed in the top area of the terminal 10, in other exemplary embodiments, the antenna module 100 may also be disposed in the bottom area of the terminal 10 or other locations, and a technician may select a suitable location for the antenna module 100 according to the overall design requirement of the terminal 10.
To sum up, in the technical solution provided in the embodiment of the present application, the first feeding portion is connected to the first port of the four-port network, and the second feeding portion is connected to the second port of the four-port network. When the first feed part sends out a first radio-frequency signal, the first port is an input port, and the second port is an isolation port; when the second feed portion sends out a second radio-frequency signal, the second port is an input port, and the first port is an isolation port. The first radio-frequency signal sent by the first feeding portion cannot be coupled to the second feeding portion, the second radio-frequency signal sent by the second feeding portion cannot be coupled to the first feeding portion, interference between the first feeding portion and the second feeding portion is reduced, and therefore the isolation between the first feeding portion and the second feeding portion is improved, accordingly, ECC between the first antenna and the second antenna is reduced, and high communication efficiency is guaranteed.
It should be understood that reference herein to "and/or" describing an association of case objects means that there may be three relationships, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The above description is only exemplary of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (11)
1. An antenna module is characterized in that the antenna module comprises a first feed part, a second feed part, a four-port network, a first antenna and a second antenna;
the first feed part is connected with a first port of the four-port network, and the second feed part is connected with a second port of the four-port network;
a third port of the four-port network is connected with the first antenna, and a fourth port of the four-port network is connected with the second antenna;
when the first feed portion sends out a first radio-frequency signal, the first port is an input port, the second port is an isolation port, the third port is a through port, and the fourth port is a coupling port;
when the second feed portion sends out a second radio frequency signal, the second port is the input port, the first port is the isolation port, the third port is the coupling port, and the fourth port is the through port.
2. The antenna module of claim 1, further comprising a first matching circuit, a second matching circuit, a third matching circuit, and a fourth matching circuit;
the first feed part is connected with the input end of the first matching circuit, and the output end of the first matching circuit is connected with the first port;
the second feed part is connected with the input end of the second matching circuit, and the output end of the second matching circuit is connected with the second port;
the third port is connected with the input end of the third matching circuit, and the output end of the third matching circuit is connected with the first antenna;
the fourth port is connected with the input end of the fourth matching circuit, and the output end of the fourth matching circuit is connected with the second antenna.
3. The antenna module of claim 2,
the first matching circuit is used for realizing impedance matching between the first feeding part and the first port;
the second matching circuit is used for realizing impedance matching between the second feeding part and the second port;
the third matching circuit is used for realizing impedance matching between the first antenna and the third port;
the fourth matching circuit is configured to implement impedance matching between the second antenna and the fourth port.
4. The antenna module of claim 2 or 3, wherein the first matching circuit comprises a first inductor and a first capacitor, the second matching circuit comprises a second inductor and a second capacitor, the third matching circuit comprises a third capacitor, and the fourth matching circuit comprises a fourth capacitor;
one end of the first capacitor is grounded, the other end of the first capacitor is respectively connected with the first feed part and one end of the first inductor, and the other end of the first inductor is connected with the first port;
one end of the second capacitor is grounded, the other end of the second capacitor is respectively connected with the second feed part and one end of the second inductor, and the other end of the second inductor is connected with the second port;
the third port is connected with one end of the third capacitor, and the other end of the third capacitor is connected with the first antenna;
the fourth port is connected with one end of the fourth capacitor, and the other end of the fourth capacitor is connected with the second antenna.
5. The antenna module of claim 4, wherein the four-port network is a directional coupler.
6. The antenna module of claim 2 or 3, wherein the first matching circuit comprises a third inductor and a fourth inductor, the second matching circuit comprises a fifth capacitor and a sixth capacitor, the third matching circuit comprises a seventh capacitor and a fifth inductor, and the fourth matching circuit comprises an eighth capacitor;
one end of the third inductor is connected with the first feed portion, the other end of the third inductor is respectively connected with the first port and one end of the fourth inductor, and the other end of the fourth inductor is grounded;
the second feed part is connected with one end of the fifth capacitor, the other end of the fifth capacitor is connected with the second port, one end of the sixth capacitor is connected with the second port, and the other end of the sixth capacitor is grounded;
the third port is connected with one end of the fifth inductor, the other end of the fifth inductor is connected with the first antenna, one end of the sixth capacitor is connected with the first antenna, and the other end of the sixth capacitor is grounded;
the fourth port is connected with one end of the eighth capacitor, the other end of the eighth capacitor is grounded, and one end of the eighth capacitor is connected with the second antenna.
7. The antenna module of claim 6, wherein the four-port network is a 180 ° hybrid network.
8. The antenna module of claim 1, wherein the first antenna and the second antenna are inverted-F antennas.
9. The antenna module of claim 1, wherein the operating frequency band of the first antenna and the second antenna is Sub6G frequency band in 5G frequency band.
10. The antenna module of claim 1,
when the first radio-frequency signal is input from the first port, the third port and the fourth port output in equal amplitude and in phase, and the second port outputs no signal;
when the second radio-frequency signal is input from the second port, the third port and the fourth port output in equal amplitude and in opposite phase, and the first port does not output any signal.
11. A terminal, characterized in that it comprises an antenna module according to any one of claims 1 to 10.
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| CN201911116668.1A CN110808466A (en) | 2019-11-15 | 2019-11-15 | Antenna module and terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911116668.1A CN110808466A (en) | 2019-11-15 | 2019-11-15 | Antenna module and terminal |
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| CN110808466A true CN110808466A (en) | 2020-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024001072A1 (en) * | 2022-06-30 | 2024-01-04 | 西安电子科技大学 | Antenna module, antenna array, and electronic device |
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Application publication date: 20200218 |