An array of antennas and a full-duplex communication system

Abstract

The present invention discloses an antenna set and a full-duplex communication system, said antenna set comprising a substrate, a first antenna and a second antenna; said first antenna and said second antenna are both placed on said substrate; the far-radiating field of said first antenna and the far-radiating field of said second antenna are orthogonal to each other;said two antennas will not interfere with each other, and the isolation between the different antennas can be improved by the design of a simple circuit, which does not need to occupy the circuit surface and does not require additional power loss, and said two antennas are orthogonal to each other in the far radiation field, and the orthogonal polarization of the antennas in the far radiation field is greatly improved by the orthogonal polarization method of the antennas, which is perfectly suited for full-duplex circuits and greatly improves the communication performance of the full-duplex communication system. Figure to be published for the abstract: Figure 1;

Description

Title of the invention: AN ANTENNA ASSEMBLY AND A FULL DUPLEX COMMUNICATION SYSTEM Technical field

[0001] The present invention relates to the field of antennas, and in particular to an antenna assembly and a full-duplex communication system. TECHNICAL CONTEXT

[0002] Full duplex communication systems, thanks to the advantages based on simultaneous and same-frequency communication, are widely used in consumer electronics, such as USB technology. In full duplex circuits for wireless communication, full duplex communication systems also bring many advantages. However, in full duplex communication systems, good or poor isolation between the transmitter and the receiver directly affects the communication performance of full duplex communication systems.

[0003] In order to solve the problem of poor isolation between the transmitter and the receiver, complex cancellation circuits are generally used to counteract the interference from the transmitter to the receiver, but the cancellation circuits tend to occupy a large area and have a large power loss due to their complexity. DISCLOSURE OF THE INVENTION

[0004] The technical problem to be solved by the present invention is to provide an antenna assembly and a full-duplex communication system, which are capable of improving the isolation between different antennas.

[0005] In order to solve the above-mentioned technical problem, a technical solution adopted in the present invention is as follows:

[0006] An antenna assembly comprising a substrate, a first antenna and a second antenna;

[0007] said first antenna and said second antenna are both placed on said substrate;

[0008] the far radiation field of said first antenna and that of said second antenna are adjusted to be orthogonal to each other.

[0009] In order to solve the above-mentioned technical problem, another technical solution adopted in the present invention is as follows:

[0010] A full duplex communication system comprising said aforementioned antenna assembly.

[0011] The beneficial effect of the present invention is that: for said first antenna and said second antenna provided on the same substrate, the radiation far field of said first antenna and the radiation far field of said second antenna are set to be orthogonal to each other, so as to realize orthogonal polarization of different antennas in the radiation far field, the signal radiated by said first antenna will not be projected onto said second antenna, so as to achieve a good isolation effect, said two antennas will not interfere with each other, and the isolation between the different antennas can be improved by designing a simple circuit, which does not need to occupy the circuit area and does not require additional power loss, and said two antennas are orthogonal to each other in the radiation far field,and the orthogonal polarization of antennas in the far radiation field is greatly improved by the orthogonal polarization method of antennas, which is very suitable for full-duplex circuits and greatly improves the communication performance of the full-duplex communication system. DESCRIPTION OF FIGURES

[0012] [Fig.l] is a schematic view of the structure of an antenna assembly according to an embodiment of the present invention;

[0013] [Fig.2] is a schematic view of the transmission of the electromagnetic waveform of said first antenna and said second antenna in an antenna assembly according to an embodiment of the present invention;

[0014] [Fig.3] is a schematic view of the structure of a patch antenna in an antenna assembly according to an embodiment of the present invention;

[0015] [Fig.4] is a schematic view of the structure of a double dipole antenna in an antenna assembly according to one embodiment of the present invention;

[0016] [Fig.5] is a schematic view of the structure of a monopole antenna in an antenna assembly according to one embodiment of the present invention;

[0017] [Fig.6] is a schematic view of the structure of a slot antenna in an antenna assembly according to one embodiment of the present invention;

[0018] [Fig.7] is a schematic view of a structure of said first antenna and said second of an antenna assembly achieving far-field radiation orthogonality according to an embodiment of the present invention;

[0019] [Fig.8] is a schematic view of another structure of said first antenna and said second of an antenna assembly achieving far-field radiation orthogonality according to an embodiment of the present invention;

[0020] [Fig.9] is a schematic view of another structure of said first antenna and said second of an antenna assembly achieving far-field radiation orthogonality according to an embodiment of the present invention;

[0021] [Fig. 10] is a schematic view of another structure of said first antenna and said second of an antenna assembly achieving far-field radiation orthogonality according to an embodiment of the present invention;

[0022] [Fig. 11] is a schematic view of another structure of said first antenna and said second of an antenna assembly achieving far-field radiation orthogonality according to an embodiment of the present invention;

[0023] [Fig. 12] is a schematic view of another structure of said first antenna and said second of an antenna assembly achieving far-field radiation orthogonality according to an embodiment of the present invention;

[0024] [Fig. 13] is a schematic view of another structure of said first antenna and said second of an antenna assembly achieving far-field radiation orthogonality according to an embodiment of the present invention;

[0025] [Fig. 14] is a schematic view of another structure of said first antenna and said second of an antenna assembly achieving far-field radiation orthogonality according to an embodiment of the present invention;

[0026] [Fig. 15] is a schematic view of another structure of said first antenna and said second of an antenna assembly achieving far-field radiation orthogonality according to an embodiment of the present invention;

[0027] [Fig. 16] is a schematic view of another structure of said first antenna and said second of an antenna assembly achieving far-field radiation orthogonality according to an embodiment of the present invention. DETAILED PRESENTATION OF THE IMPLEMENTATION METHOD

[0028] In order to illustrate in detail the technical contents, the objectives achieved and the effects of the present invention, the following is described with reference to the embodiments and the accompanying drawings.

[0029] Referring to Figures 1 to 16, an antenna assembly 100 comprising a substrate 101, a first antenna 102 and a second antenna 103;

[0030] said first antenna 102 and said second antenna 103 are both placed on said substrate 101;

[0031] the far radiation field of said first antenna 102 and that of said second antenna 102 are adjusted to be orthogonal to each other.

[0032] It is apparent from the above description that the beneficial effect of the present invention is that, for said first antenna 102 and said second antenna 103 provided on the same substrate 101, the far radiation field of said first antenna 102 and the far radiation field of said second antenna 103 are adjusted to be orthogonal to each other, so as to realize orthogonal polarization of different antennas in the radiation far field, the signal radiated by said first antenna 102 will not be projected onto said second antenna 103, so as to achieve a good isolation effect, said two antennas will not interfere with each other, and the isolation between the different antennas can be improved by designing a simple circuit, which does not need to occupy the circuit area and does not require additional power loss, and said two antennas are orthogonal to each other in the radiation far field, and the orthogonal polarization of the antennas in the radiation far field is greatly improved by the method of orthogonal polarization of the antennas,which is perfectly suitable for full-duplex circuits and greatly improves the communication performance of the full-duplex communication system.

[0033] Advantageously, said first antenna 102 and said second antenna 103 are both millimeter wave antennas.

[0034] It can be seen from the above description that, by adopting millimeter wave antennas, it is possible to achieve an integrated design that avoids occupying too much space, and since the radiation far fields of different millimeter wave antennas are orthogonal to each other, there is no problem of mutual interference due to the millimeter wave antennas being integrated on the same substrate 101.

[0035] Advantageously, said first antenna 102 and said second antenna 103 are both vertical antennas.

[0036] It is apparent from the above description that, by adopting vertical antennas, it is not only possible to reduce costs, but also has the advantages of a wide frequency band and high gain.

[0037] Advantageously, said first antenna 102 and said second antenna 103 are selected from patch antennas, double dipole antennas, monopole antennas and slot antennas.

[0038] Advantageously, said first antenna 102 is a patch antenna, said second antenna 103 is selected from patch antennas, double dipole antennas, monopole antennas and slot antennas.

[0039] Advantageously, said first antenna 102 is a double dipole antenna and said second antenna 103 is selected from patch antennas, double dipole antennas, monopole antennas and slot antennas.

[0040] Advantageously, said first antenna 102 is a monopole antenna and said second antenna 103 is selected from patch antennas, double dipole antennas, monopole antennas and slot antennas.

[0041] Advantageously, said first antenna 102 is a slot antenna, said second antenna 103 is selected from patch antennas, double dipole antennas, monopole antennas and slot antennas.

[0042] It is apparent from the above description that, selecting a variety of different types of antennas and combining them can realize different shapes of antenna arrays 100 with respectively orthogonal radiation far fields, which are flexible and convenient.

[0043] Advantageously, said first antenna 102 is placed on the transmitter and said second antenna 103 is placed on the receiver, or said first antenna 102 is placed on the receiver and said second antenna 103 is placed on the transmitter.

[0044] It is apparent from the above description that, by placing said first antenna 102 and said second antenna 103 respectively on the transmitter and the receiver, it is possible to avoid mutual interference between the transmitter and the receiver and to improve the communication performance of the transceiver.

[0045] A full duplex communication system comprising said aforementioned antenna assembly 100.

[0046] It is apparent from the above description that said full-duplex communication system, which comprises the set of antennas 100 whose far radiation fields are orthogonal to each other, can avoid mutual interference between the transmitter and the receiver and ensure good isolation between the transmitter and the receiver without the need to add complexity to the circuit.

[0047] Said antenna assembly 100 described above according to the present application can be used in communication systems where good isolation is required, such as a full duplex communication system, which will be explained as follows in specific embodiments:

[0048] In an optional embodiment, as shown in [Fig.l], an antenna assembly 100 comprising a substrate 101, a first antenna 102 and a second antenna 103;

[0049] said first antenna 102 and said second antenna 103 are both placed on said substrate;

[0050] the far radiation field of said first antenna 102 and that of said second antenna 103 are adjusted to be orthogonal to each other;

[0051] In order to achieve mutual orthogonality between the far radiation field of said first antenna 102 and that of said second antenna 103, as shown in [Fig.2], an XYZ coordinate system is established with the substrate 101 as a reference, and the plane in which the substrate 101 is located is the XZ plane, and the electromagnetic wave of the far radiation field of said first antenna 102 can be set to be transmitted along the YZ plane, the far-field electromagnetic wave of radiation of said second antenna 103 can be set to be transmitted along the XZ plane, or the far-field electromagnetic wave of radiation of said first antenna 102 can be set to be transmitted along the XZ plane, and the far-field electromagnetic wave of radiation of said second antenna 103 can be set to be transmitted along the YZ plane, such that the two electromagnetic waves are orthogonal to each other, meaning that the projections of the two groups of electromagnetic waves to each other are zero, and desirable isolation is achieved;

[0052] wherein, said first antenna 102 may be placed on the transmitter and said second antenna 103 is placed on the receiver, or said first antenna 102 is placed on the receiver and said second antenna 103 is placed on the transmitter, thereby improving the isolation between the transmitter and the receiver to avoid mutual interference between the transmitter and the receiver.

[0053] In another optional embodiment, said first antenna 102 and said second antenna 103 are both millimeter wave antennas, which allows for an integrated design, particularly suitable for use in portable communication devices.

[0054] In another optional embodiment, said first antenna 102 and said second antenna 103 are both vertical antennas (broadside antenna), the use of vertical antennas can not only reduce costs, but also has the advantages of a wide frequency band and high gain.

[0055] Wherein, said first antenna 102 and said second antenna 103 may be selected from patch antennas, dual dipole antennas, monopole antennas and slot antennas.

[0056] As shown in [Fig.3], a patch antenna is adopted, with a polarization direction consistent with the radiator of the patch antenna, as indicated by the arrow in the figure;

[0057] As shown in [Fig.4], a double dipole antenna is adopted, with a polarization direction indicated by the arrow in the figure;

[0058] As shown in [Fig.5], a monopole antenna is adopted, with a polarization direction indicated by the arrow in the figure;

[0059] As shown in [Fig.6], a slot antenna is adopted, with a polarization direction indicated by the arrow in the figure.

[0060] In order to obtain mutual orthogonality between the different antennas in the far radiation field:

[0061] In an optional embodiment, said first antenna 102 is a patch antenna, said second antenna 103 is selected from patch antennas, double dipole antennas, monopole antennas and slot antennas, as shown in Figures 7 to 10:

[0062] In [Fig.7], said first antenna 102 is a patch antenna and the second antenna 103 is also a patch antenna, it is possible to know that the polarization directions of the two are mutually orthogonal as shown by the direction of the arrows;

[0063] In [Fig.8], said first antenna 102 is a patch antenna and the second antenna 103 is a double dipole antenna, it is possible to know that the polarization directions of the two are mutually orthogonal as shown by the direction of the arrows;

[0064] In [Fig.9], said first antenna 102 is a patch antenna and the second antenna 103 is a monopole antenna, it is possible to know that the polarization directions of the two are mutually orthogonal as shown by the direction of the arrows;

[0065] In [Fig. 10], said first antenna 102 is a patch antenna and the second antenna 103 is a slot antenna, it can be known that the polarization directions of the two are mutually orthogonal as shown by the direction of the arrows;

[0066] In another optional embodiment, said first antenna 102 is a double dipole antenna and said second antenna 103 is selected from patch antennas, double dipole antennas, monopole antennas and slot antennas, as shown in Figures 11 and 12:

[0067] In [Fig.l 1], said first antenna 102 is a double dipole antenna and the second antenna 103 is also a double dipole antenna, it can be known that the polarization directions of the two are mutually orthogonal as shown by the direction of the arrows;

[0068] In [Fig. 12], said first antenna 102 is a double dipole antenna and the second antenna 103 is a slot antenna, it can be known that the polarization directions of the two are mutually orthogonal as shown by the direction of the arrows;

[0069] In another optional embodiment, said first antenna 102 is a monopole antenna and said second antenna 103 is selected from patch antennas, double dipole antennas, monopole antennas and slot antennas, as shown in Figures 13 to 15:

[0070] In [Fig.13], said first antenna 102 is a monopole antenna and the second antenna 103 is also a monopole antenna, it is possible to know that the polarization directions of the two are mutually orthogonal as shown by the direction of the arrows;

[0071] In [Fig.14], said first antenna 102 is a monopole antenna and the second antenna 103 is a double dipole antenna, it is possible to know that the polarization directions of the two are mutually orthogonal as shown by the direction of the arrows;

[0072] In [Fig.15], said first antenna 102 is a monopole antenna and the second antenna 103 is a slot antenna, it is possible to know that the polarization directions of the two are mutually orthogonal as shown by the direction of the arrows;

[0073] In another optional embodiment, said first antenna 102 is a slot antenna, said second antenna 103 is selected from patch antennas, double dipole antennas, monopole antennas and slot antennas, as shown in [Fig. 16]:

[0074] In [Fig.16], said first antenna 102 is a slot antenna and the second antenna 103 is also a slot antenna, it can be known that the polarization directions of the two are mutually orthogonal as shown by the direction of the arrows;

[0075] The antenna assembly described above can be used in any application scenario where good isolation of the different antennas is required:

[0076] In another optional embodiment, a full duplex communication system comprising said antenna assembly 100 according to any of the preceding embodiments.

[0077] In conclusion, the present invention provides an antenna assembly and a full-duplex communication system, wherein the radiation far field of said first antenna and the radiation far field of said second antenna are set to be orthogonal to each other, so as to achieve orthogonal polarization of different antennas in the radiation far field, and said first antenna and said second antenna are both vertical antennas, so that the antennas can be freely selected and composed from among patch antennas, double dipole antennas, monopole antennas and slot antennas, with a high degree of flexibility, the signal radiated by said first antenna will not be projected onto said second antenna, so as to achieve a good isolation effect, said two antennas will not interfere with each other,and the isolation between the different antennas can be improved by designing a simple circuit, which does not need to occupy the circuit area and does not require additional power loss, and said two antennas are orthogonal to each other in the far field of , radiation, and the orthogonal polarization of antennas in the far radiation field is greatly improved by the orthogonal polarization method of antennas, which is very suitable for full-duplex circuits and greatly improves the communication performance of the full-duplex communication system.

[0078] The foregoing are merely embodiments of the present invention and are not intended to limit the scope of the patent of the present invention, and all equivalent transformations using the specification of the present invention and the accompanying drawings, or directly or indirectly in the relevant technical fields, are included within the scope of the patent protection of the present invention.

Claims

Claims

1. An antenna assembly (100), characterized in that it comprises a substrate (101), a first antenna (102) and a second antenna (103); said first antenna (102) and said second antenna (103) are both placed on said substrate (101); the far radiation field of said first antenna (102) and that of said second antenna (103) are set to be orthogonal to each other;in order to achieve mutual orthogonality between the far field radiation of said first antenna (102) and that of said second antenna (103), an XYZ coordinate system is established with the substrate (101) as a reference, and the plane in which the substrate (101) is located is the XZ plane, and the electromagnetic wave of the far field radiation of said first antenna (102) can be set to be transmitted along the YZ plane, the electromagnetic wave of the far field radiation of said second antenna (103) can be set to be transmitted along the XZ plane;or the far-field electromagnetic wave of radiation of said first antenna (102) can be set to be transmitted along the XZ plane, and the far-field electromagnetic wave of radiation of said second antenna (103) can be set to be transmitted along the YZ plane, so that the two electromagnetic waves are orthogonal to each other.;

2. The antenna assembly (100) according to claim 1, characterized in that said first antenna (102) and said second antenna (103) are both millimeter wave antennas.

3. The antenna assembly (100) according to claim 1, characterized in that said first antenna (102) and said second antenna (103) are both vertical antennas.

4. The antenna assembly (100) according to any one of claims 1 to 3, characterized in that said first antenna (102) and said second antenna (103) are selected from patch antennas, double dipole antennas, monopole antennas and slot antennas.

5. The antenna assembly (100) according to claim 4, characterized in that, said first antenna (102) is a patch antenna, said second antenna (103) is selected from among the patch antennas, double dipole antennas, monopole antennas and slot antennas.

6. The antenna assembly (100) according to claim 4, characterized in that said first antenna (102) is a double dipole antenna and said second antenna (103) is selected from patch antennas, double dipole antennas, monopole antennas and slot antennas.

7. The antenna assembly (100) according to claim 4, characterized in that said first antenna (102) is a monopole antenna and said second antenna (103) is selected from patch antennas, double dipole antennas, monopole antennas and slot antennas.

8. The antenna assembly (100) according to claim 4, characterized in that, said first antenna (102) is a slot antenna, said second antenna (103) is selected from patch antennas, double dipole antennas, monopole antennas and slot antennas.

9. The antenna assembly (100) according to any one of claims 1 to 3 and 5 to 8, characterized in that, said first antenna (102) is placed on a transmitter and said second antenna (103) is placed on the receiver, or said first antenna (102) is placed on a receiver and said second antenna (103) is placed on the transmitter.

10. The full duplex communication system, characterized in that it comprises said antenna assembly (100) according to any one of claims 1 to 9.

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