Antenna array, antenna system, base station and terminal

Abstract

An antenna array, an antenna system, a base station, and a terminal, relating to the technical field of antennas. The antenna array comprises a ground plane, a transmitting antenna, a receiving antenna, at least two first isolation members, and at least one second isolation member. The transmitting antenna and the receiving antenna are arranged at intervals on the same side of the ground plane, and the first isolation members and the second isolation member are respectively located on two opposite sides of the ground plane; the at least two first isolation members are arranged at intervals between the transmitting antenna and the receiving antenna, and the extension directions of the first isolation members and the second isolation member both intersect a direction from the transmitting antenna to the receiving antenna, thus ensuring the isolation capability of the first isolation members and the second isolation member on signals. The at least one second isolation member is aligned with the first isolation member in a direction perpendicular to the ground plane, such that the aligned first and second isolation members can block the coupling current on the ground plane, thereby increasing the isolation level between the transmitting antenna and the receiving antenna.

Description

Antenna array, antenna system, base station and terminal

[0001] The present application claims priority from the Chinese patent application No. 202410868248.3 filed on June 28, 2024, and entitled "Antenna array, antenna system, base station and terminal", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of antennas, and in particular to an antenna array, an antenna system, a base station and a terminal. BACKGROUND

[0003] With the continuous development of communication technology, people's demand for greater uplink bandwidth and lower latency is increasingly prominent. Sub-band full-duplex communication divides multiple sub-bands in the same frequency band, so that part of the sub-bands can simultaneously transmit and receive signals, i.e., each sub-band in the part of the sub-bands can simultaneously transmit and receive signals, so that it can have the advantages of lower latency of frequency division duplex communication and greater bandwidth of time division duplex communication, which is beneficial to improve the performance of the communication system.

[0004] The integration and miniaturization requirements of the antenna system are increasingly high, so that the distance between the transmitting antenna and the receiving antenna in the antenna system is increasingly small, the mutual coupling between the transmitting antenna and the receiving antenna is enhanced, and it is necessary to improve the isolation between the transmitting antenna and the receiving antenna, thereby reducing the negative effects caused by signal coupling. Since the frequencies of the transmitting signal and the receiving signal are the same in the part of the sub-bands of the sub-band full-duplex communication, the transmitting signal and the receiving signal cannot be separated according to the difference in frequency. Although the isolation can be improved by setting a baffle between the transmitting antenna and the receiving antenna and designing the structure or material of each baffle according to the frequency, the signal at the transmitting antenna cannot be avoided from being coupled to the receiving antenna through the ground plate, resulting in low isolation between the transmitting antenna and the receiving antenna. SUMMARY

[0005] The present application provides an antenna array, an antenna system, a base station and a terminal. By respectively setting a first isolation member and a second isolation member on the two opposite sides of the ground plate, at least one second isolation member and the first isolation member correspond to each other in the direction perpendicular to the ground plate, so as to block the signal at the transmitting antenna from being coupled to the receiving antenna through the ground plate, which is beneficial to improve the isolation between the transmitting antenna and the receiving antenna.

[0006] In a first aspect, the present application provides an antenna array, comprising a ground plate, a transmitting antenna and a receiving antenna, the transmitting antenna and the receiving antenna being arranged at the same side of the ground plate; at least two first isolation members and at least one second isolation member, each being connected to the ground plate, the first isolation members and the second isolation member being located at two opposite sides of the ground plate respectively, the at least two first isolation members being located between the transmitting antenna and the receiving antenna; a direction from the transmitting antenna to the receiving antenna being a first direction, the first isolation members and the second isolation member extending in a direction intersecting the first direction, the at least two first isolation members being arranged at intervals in the first direction, and the at least one second isolation member corresponding to the first isolation members in a direction perpendicular to the ground plate.

[0007] The antenna array provided by the present application comprises a ground plate, a transmitting antenna and a receiving antenna, the transmitting antenna and the receiving antenna being arranged at the same side of the ground plate to realize signal transmission by the transmitting antenna and signal reception by the receiving antenna. The antenna array further comprises at least two first isolation members and at least one second isolation member, the at least two first isolation members and the at least one second isolation member being connected to two opposite surfaces of the ground plate respectively, the at least two first isolation members being located between the transmitting antenna and the receiving antenna, and the at least one second isolation member being located at a side of the ground plate opposite to the transmitting antenna and the receiving antenna, so that the first isolation members and the second isolation members shield electromagnetic wave signals in a direction from the transmitting antenna to the receiving antenna on the two opposite sides of the ground plate respectively, and the isolation between the transmitting antenna and the receiving antenna is improved.

[0008] The first isolation members and the second isolation members extend in a direction intersecting the first direction, so that the first isolation members and the second isolation members have sufficient area to shield electromagnetic wave signals in the first direction, and the occupation space of the first isolation members and the second isolation members in the first direction is reduced, which is beneficial to increasing the number of the first isolation members and the second isolation members, the at least two first isolation members being arranged at intervals in the first direction, so that the distribution range of the at least two first isolation members in the first direction is increased, which is beneficial to improving the isolation capability of the first isolation members and the second isolation members for signals between the transmitting antenna and the receiving antenna. The at least one second isolation member corresponds to the first isolation members in a second direction, so that the corresponding second isolation members and the first isolation members can jointly block the current generated by the coupling of the ground plate on the two opposite surfaces of the ground plate, and avoid the current bypassing the first isolation members or the second isolation members to affect the reception of signals by the receiving antenna, which is beneficial to further improving the isolation between the transmitting antenna and the receiving antenna.

[0009] In a possible implementation, the at least two first isolation members are parallel in the first direction, and a distance between two adjacent first isolation members is a positive integer multiple of half of a wavelength corresponding to a frequency in the transmission frequency band of the transmission antenna. By making the at least two first isolation members parallel in the first direction and the distance between two adjacent first isolation members a positive integer multiple of half of the wavelength corresponding to the frequency in the transmission frequency band of the transmission antenna, the first isolation members can isolate the frequency band used for both transmission and reception, and two secondary electromagnetic waves with opposite directions, the same frequency, and the same intensity can be formed between two adjacent first isolation members, the two secondary electromagnetic waves can cancel each other out, thereby eliminating electromagnetic waves in a spacing region between the two adjacent first isolation members, and improving the isolation capability of the at least two first isolation members for the transmission antenna and the reception antenna.

[0010] In a possible implementation, the number of the second isolation members is at least two, the at least two second isolation members are parallel in the first direction, and a distance between two adjacent second isolation members is a positive integer multiple of half of a wavelength corresponding to a frequency in the transmission frequency band of the transmission antenna. By making the at least two second isolation members parallel in the first direction and the distance between two adjacent second isolation members a positive integer multiple of half of the wavelength corresponding to the frequency in the transmission frequency band of the transmission antenna, the second isolation members can isolate the frequency band used for both transmission and reception, and two secondary electromagnetic waves with opposite directions, the same frequency, and the same intensity can be formed between two adjacent second isolation members, the two secondary electromagnetic waves can cancel each other out, thereby eliminating electromagnetic waves in a spacing region between the two adjacent second isolation members, and improving the isolation capability of the at least two second isolation members for the transmission antenna and the reception antenna.

[0011] In a possible implementation, the distance between two adjacent first isolation members is equal to the distance between two adjacent second isolation members. By making the distance between two adjacent first isolation members equal to the distance between two adjacent second isolation members, the arrangement of the at least two first isolation members and the at least two second isolation members is facilitated, the number of corresponding first isolation members and second isolation members is increased, the common blocking capability of the corresponding first isolation members and second isolation members for the current is improved, and the isolation between the transmission antenna and the reception antenna is improved.

[0012] In a possible implementation, in a direction perpendicular to the ground plate, projections of the at least one second isolation member on the ground plate are located between a projection of the transmitting antenna on the ground plate and a projection of the receiving antenna on the ground plate. By locating the projections of the at least one second isolation member on the ground plate between the projection of the transmitting antenna on the ground plate and the projection of the receiving antenna on the ground plate, the at least one second isolation member corresponds to the spacing region between the transmitting antenna and the receiving antenna, the second isolation member is more likely to correspond to the first isolation member, the number of corresponding second isolation members and first isolation members is increased, the isolation capability of the first isolation member and the second isolation member is improved, and the isolation between the transmitting antenna and the receiving antenna is further improved.

[0013] In a possible implementation, the number of the first isolation members is the same as the number of the second isolation members, and the first isolation members and the second isolation members are arranged one by one. By arranging the first isolation members and the second isolation members one by one, the arrangement manner of the first isolation members and the second isolation members is simplified, the number of corresponding first isolation members and second isolation members is increased, the isolation capability of the first isolation member and the second isolation member is improved, and the isolation between the transmitting antenna and the receiving antenna is further improved.

[0014] In a possible implementation, in the first direction, a minimum distance between the at least two first isolation members and the transmitting antenna is less than or equal to a minimum distance between the at least two first isolation members and the receiving antenna. By making the minimum distance between the at least two first isolation members and the transmitting antenna less than or equal to the minimum distance between the at least two first isolation members and the receiving antenna, the at least two first isolation members are closer to one side of the transmitting antenna, the first isolation member is more likely to shield signals near the point where the electromagnetic wave signal is generated, the isolation effect of the first isolation member on the electromagnetic wave signal is ensured, the number of first isolation members arranged near the receiving antenna is reduced, and the setting cost of the antenna array is saved.

[0015] In a possible implementation, in a plane perpendicular to the first direction, the orthographic projection of the at least two first isolation members completely covers the orthographic projection of the transmitting antenna. By making the orthographic projection of the at least two first isolation members completely cover the orthographic projection of the transmitting antenna in the plane perpendicular to the first direction, the area of any one of the first isolation members is greater than or equal to the area of the transmitting antenna, the size of the first isolation member is reasonably configured, the shielding capability of the first isolation member on the electromagnetic wave signal generated by the transmitting antenna is ensured, and the isolation between the transmitting antenna and the receiving antenna is further ensured.

[0016] In a possible implementation, in a plane perpendicular to the first direction, the orthographic projections of the at least two first isolation members coincide and have equal projection areas. By making the orthographic projections of the at least two first isolation members coincide and have equal projection areas in the plane perpendicular to the first direction, the arrangement of the at least two first isolation members is facilitated, and the adjacent two first isolation members are completely opposite to each other, so that the at least two first isolation members have better uniformity in signal shielding capability, and the utilization of the first isolation members is improved, and the problem that the non-corresponding part of the first isolation member has poor cancellation effect on the signal is avoided.

[0017] In a possible implementation, the height of the at least two first isolation members protruding from the ground plate is 1 to 3 times the height of the transmitting antenna protruding from the ground plate, and / or the height of the at least one second isolation member protruding from the ground plate is 0.5 to 3 times the height of the transmitting antenna protruding from the ground plate. By making the at least two first isolation members and the transmitting antenna satisfy the height relationship, the height of the first isolation member relative to the transmitting antenna is reasonably configured, the first isolation member is ensured to have sufficient height to shield the signal, and the height of the first isolation member is prevented from being too high to affect the normal transmission of the signal by the transmitting antenna. By making the at least one second isolation member and the transmitting antenna satisfy the height relationship, the height of the second isolation member relative to the transmitting antenna is reasonably configured, the second isolation member is ensured to have sufficient height to shield the signal, and the height of the second isolation member is prevented from being too high to occupy too much space.

[0018] In a possible implementation, the height of the first isolation member protruding from the ground plate is greater than or equal to the height of the second isolation member protruding from the ground plate. By making the height of the first isolation member protruding from the ground plate greater than or equal to the height of the second isolation member protruding from the ground plate, the isolation capability of the first isolation member is ensured, and the total length of the antenna array in the second direction is reduced, so that the antenna array is miniaturized.

[0019] In a possible implementation, the shapes of the at least two first isolation members and the at least one second isolation member are both flat plates, and the at least two first isolation members and the at least one second isolation member are both perpendicular to the ground plate. By making the shapes of the at least two first isolation members and the at least one second isolation member both flat plates, and the at least two first isolation members and the at least one second isolation member both perpendicular to the ground plate, the arrangement of the first isolation members and the second isolation members is facilitated, and the adjacent two first isolation members form secondary electromagnetic waves in the first direction, the direction of the secondary electromagnetic waves is the same as the direction from the transmitting antenna to the receiving antenna, which facilitates improving the cancellation effect of the two secondary electromagnetic waves, and further improving the isolation degree of the transmitting antenna and the receiving antenna.

[0020] In a possible implementation, the antenna array further comprises an isolation layer, and the isolation layer covers at least two opposite surfaces of two adjacent first isolation members. By further comprising the isolation layer, and the isolation layer covering at least two opposite surfaces of two adjacent first isolation members, the isolation layer absorbs electromagnetic waves on the two opposite surfaces of the two adjacent first isolation members, reduces the intensity of electromagnetic waves between the two adjacent first isolation members, and improves the isolation of the transmitting antenna and the receiving antenna.

[0021] In a possible implementation, the isolation layer covers outer surfaces of two first isolation members closest to the transmitting antenna. By covering the outer surfaces of the two first isolation members closest to the transmitting antenna, the isolation layer is facilitated to absorb signals near a point where the electromagnetic wave signal is relatively strong, and the isolation capability of the first isolation members for the transmitting antenna and the receiving antenna is improved.

[0022] In a possible implementation, the isolation layer covers outer surfaces of two second isolation members closest to the transmitting antenna, and / or outer surfaces of two first isolation members closest to the receiving antenna, and / or outer surfaces of two second isolation members closest to the receiving antenna. By covering the outer surfaces of at least one of the two second isolation members closest to the transmitting antenna, the two first isolation members closest to the receiving antenna, and the two second isolation members closest to the receiving antenna, the isolation of the transmitting antenna and the receiving antenna is improved, the coverage area of the isolation layer is appropriately reduced, and the cost of the isolation layer is saved.

[0023] In a possible implementation, the isolation layer covers outer surfaces of all the first isolation members and all the second isolation members. By covering the outer surfaces of all the first isolation members and all the second isolation members, the isolation layer has a wide distribution range, and the isolation layer has a good absorption effect on electromagnetic waves, which is beneficial to improve the isolation capability of the first isolation members and the second isolation members for the transmitting antenna and the receiving antenna, and further improve the isolation of the transmitting antenna and the receiving antenna.

[0024] In a possible implementation, the isolation layers located at different first isolation members are arranged at intervals in the first direction. By arranging the isolation layers located at different first isolation members at intervals in the first direction, the isolation layers do not need to completely fill the interval area between two adjacent first isolation members and / or second isolation members, and the cost of the isolation layer is saved.

[0025] In a possible implementation, the thicknesses of the two isolation layers located on the two opposite surfaces of the two adjacent first isolation members are equal. By making the thicknesses of the two isolation layers located on the two opposite surfaces of the two adjacent first isolation members equal, the uniformity of the absorption capacity of the two isolation layers to electromagnetic waves is ensured, and the cancellation effect of the two secondary electromagnetic waves formed between the two adjacent first isolation members is ensured, thereby improving the isolation of the transmitting antenna and the receiving antenna.

[0026] In a possible implementation, the isolation layer covers the surface of the ground plate between the two adjacent first isolation members, and / or the isolation layer covers the surface of the ground plate between the two adjacent second isolation members. By making the isolation layer cover the surface of the ground plate between the two adjacent first isolation members and / or the two adjacent second isolation members, the distribution range of the isolation layer is increased, the absorption capacity of the isolation layer to electromagnetic waves is improved, and the isolation capacity of the first isolation member and / or the second isolation member is further improved, thereby improving the isolation of the transmitting antenna and the receiving antenna.

[0027] In a second aspect, the present application also provides an antenna system, comprising a feeding network and the antenna array of any one of the implementations of the first aspect, and the antenna array and the feeding network are electrically connected. The beneficial effects of the present embodiment are similar to those of the above-mentioned embodiments, and thus the present embodiment will not be described again.

[0028] In a third aspect, the present application also provides a base station, comprising the antenna system of the second aspect. The beneficial effects of the present embodiment are similar to those of the above-mentioned embodiments, and thus the present embodiment will not be described again.

[0029] In a possible implementation, the base station further comprises a baseband unit and a radio frequency unit, the radio frequency unit and the antenna system are integrated, the baseband unit is configured to modulate a baseband signal, the radio frequency unit is configured to convert the modulated baseband signal into a radio frequency signal, and the antenna system is configured to transmit the radio frequency signal. By making the base station further comprise a baseband unit and a radio frequency unit, and integrating the radio frequency unit and the antenna unit, the antenna system can be applied to an active base station, and the transmission loss of the signal between the radio frequency unit and the antenna system is reduced.

[0030] In a possible implementation, the base station further comprises a baseband unit and a radio frequency remote unit, the baseband unit is configured to modulate a baseband signal, the radio frequency remote unit is configured to convert the modulated baseband signal into a radio frequency signal, and the antenna system is configured to transmit the radio frequency signal. By making the base station further comprise a baseband unit and a radio frequency remote unit, the antenna system can be applied to a passive base station, the deployment of the base station is more flexible, and the manufacturing cost of the base station is reduced.

[0031] Fourthly, this application also provides a terminal, including a signal processing unit and the antenna array described in the first aspect above. The signal processing unit is used to process signals, and the antenna array is used to transmit the processed signals. The beneficial effects of this embodiment are similar to those of the above embodiments, and will not be repeated here. Attached Figure Description

[0032] Figure 1 is a schematic diagram of the antenna array provided in an embodiment of this application;

[0033] Figure 2 is a front view of the antenna array provided in the embodiment shown in Figure 1;

[0034] Figure 3 is a top view of the antenna array provided in the embodiment shown in Figure 1;

[0035] Figure 4 is a bottom view of the antenna array provided in the embodiment shown in Figure 1;

[0036] Figure 5 is a front view of the first and second isolators in the antenna array provided in the embodiment of this application;

[0037] Figure 6 is a top view of the antenna array provided in the embodiment of this application, where the distances between two adjacent first isolators are not exactly the same;

[0038] Figure 7 is a top view of the antenna array provided in the embodiment of this application, in which the extension direction of the first isolator is not perpendicular to the first direction;

[0039] Figure 8 is a front view of a portion of the second isolator in the antenna array provided in the embodiment of this application, relative to the transmitting antenna;

[0040] Figure 9 is a left view of the antenna array provided in the embodiment shown in Figure 1;

[0041] Figure 10 is a front view of the antenna array provided in the embodiment of this application, in which the first and second isolators are not perpendicular to the ground plane;

[0042] Figure 11 is a schematic diagram of an antenna array with an isolation layer provided in an embodiment of this application;

[0043] Figure 12 is a front view of the antenna array provided in this application, in which two opposing surfaces of the first isolator are provided with isolation layers;

[0044] Figure 13 is a front view of the two first isolators closest to the transmitting antenna in the antenna array provided in the embodiment of this application, which are provided with isolation layers;

[0045] Figure 14 is a front view of the first and second isolators, which are closest to the transmitting and receiving antennas in the antenna array provided in the embodiments of this application, and are provided with isolation layers.

[0046] FIG. 15 is a front view of an antenna array according to an embodiment of the present application, in which the first isolation member and the second isolation member are both provided with an isolation layer;

[0047] FIG. 16 is a front view of an antenna array according to an embodiment of the present application, in which the isolation layer completely fills the region between the two adjacent first isolation members and the two adjacent second isolation members;

[0048] FIG. 17 is a system diagram of an antenna system according to an embodiment of the present application;

[0049] FIG. 18 is a system diagram of an active base station according to an embodiment of the present application;

[0050] FIG. 19 is a system diagram of a passive base station according to an embodiment of the present application;

[0051] FIG. 20 is a system diagram of a terminal according to an embodiment of the present application. DETAILED DESCRIPTION

[0052] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0053] For the convenience of understanding, the English abbreviations and related technical terms involved in the embodiments of the present application will be explained and described below.

[0054] It should be clear that the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the scope of protection of the present application.

[0055] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0056] It should be understood that the term "and / or" used herein is only a description of the same field associated with the object, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0057] Depending on the context, the word "if" as used herein can be interpreted to mean "when" or "while" or "in response to determining" or "in response to detecting." Similarly, the phrase "if it is determined" or "if [a stated condition or event] is detected" can be interpreted to mean "upon determining" or "in response to determining" or "upon detecting [the stated condition or event]" or "in response to detecting [the stated condition or event]."

[0058] It should be understood that "first", "second", etc. used in the present application are only for the purpose of distinguishing description, and cannot be understood as indicating or implying relative importance, nor indicating or implying sequence.

[0059] In the description of the present application, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0060] In the description of the present application, it should be noted that due to manufacturing or assembly errors, there may be some angular deviation within the design that should be perpendicular or parallel, for example, within 15 degrees, which is also considered perpendicular or parallel in the present embodiment.

[0061] As used herein, "in the range of" includes both end values of the range by default, unless it is specifically indicated that the end values are not included, for example, in the range of 1 to 5, both 1 and 5 are included.

[0062] In the description of the present application, it should be noted that unless otherwise specifically specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or abutting connection or integral connection; for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0063] It should be understood that in the present application, "electrically connected" can be understood as physical contact and electrical conduction of components; it can also be understood as a form of connection between different components in the circuit structure through a signal-transmissible entity line such as copper foil or wire of a printed circuit board (PCB). "Connection" and "connection" can both refer to a mechanical connection relationship or a physical connection relationship, for example, A and B are connected or A and B are connected, which means that there is a fastening component (such as a screw, a bolt, a rivet, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0064] With the continuous development of communication technology, people's demand for greater uplink bandwidth and lower latency is increasingly prominent. Traditional communication methods include frequency division duplex (FDD) communication and time division duplex (TDD) communication, also known as full duplex communication and half duplex communication, respectively.

[0065] The uplink and downlink of frequency division duplex communication are transmitted on different frequency subbands in the same frequency band, which can simultaneously realize signal transmission and reception, so that the frequency division duplex communication has lower latency. However, since the frequency band needs to be divided into different frequency subbands, the bandwidth of the divided different frequency subbands is small; at the same time, a guard band needs to be set between the subband where the uplink is located and the subband where the downlink is located to avoid mutual interference between signal transmission and reception, which further reduces the bandwidth of the subband where the uplink and downlink are located. The uplink bandwidth and downlink bandwidth of the frequency division duplex communication are both small, which is not conducive to improving the communication speed.

[0066] The uplink and downlink of time division duplex communication are both transmitted in the same frequency band. Since the frequency band does not need to be divided, the uplink bandwidth and downlink bandwidth of the time division duplex communication are larger than those of the frequency division duplex communication. However, since the uplink and downlink of the time division duplex communication use different time slots for communication, the signal cannot be transmitted and received simultaneously, resulting in higher latency of the time division duplex communication.

[0067] Subband full duplex (SBFD) communication divides multiple subbands in the same frequency band, so that part of the subbands can simultaneously transmit and receive signals, i.e. each subband in this part of the subbands can simultaneously transmit and receive signals. The subband full duplex communication can simultaneously have a larger bandwidth and a lower latency, which is conducive to improving the performance of the communication system.

[0068] With the increasing requirement for the integration and miniaturization of the antenna system, the distance between the transmitting antenna and the receiving antenna in the antenna system is increasingly small, the mutual coupling between the transmitting antenna and the receiving antenna is enhanced, and it is necessary to improve the isolation between the transmitting antenna and the receiving antenna, thereby reducing the negative influence caused by signal coupling. In the sub-band full duplex communication, the transmission and reception of signals are performed simultaneously in part of the sub-band. Since the frequencies of the transmission signal and the reception signal are the same, the transmission signal and the reception signal cannot be separated according to the difference in frequency, that is, the traditional radio frequency filtering means cannot be used. Usually, a baffle is arranged between the transmitting antenna and the receiving antenna to improve the isolation, and the structure or material of each baffle is designed according to the frequency, so that the structure of the baffle is relatively complex and the production cost is relatively high. Meanwhile, the baffle arranged between the transmitting antenna and the receiving antenna still cannot avoid the signal at the transmitting antenna being coupled to the receiving antenna through the ground plate, resulting in low isolation between the transmitting antenna and the receiving antenna.

[0069] The application provides an antenna array 100, please refer to FIG. 1 and FIG. 2, FIG. 1 shows the structural schematic diagram of the antenna array 100 provided by the embodiment of the application, and FIG. 2 shows the front view of the antenna array 100 provided by the embodiment shown in FIG. 1. The antenna array 100 comprises a ground plate 10, a transmitting antenna 20 and a receiving antenna 30, the transmitting antenna 20 and the receiving antenna 30 are both connected with the surface of the ground plate 10, and the materials of the transmitting antenna 20, the receiving antenna 30 and the ground plate 10 comprise at least one of glass fiber and metal. The materials of the transmitting antenna 20, the receiving antenna 30 and the ground plate 10 can be completely the same, or the materials of the transmitting antenna 20, the receiving antenna 30 and the ground plate 10 can not be completely the same. The ground plate 10 can be made of glass fiber or high polymer material as a substrate, and a metal plating layer is coated on the surface. Exemplarily, the transmitting antenna 20, the receiving antenna 30 and the ground plate 10 are of an integrated structure.

[0070] The transmitting antenna 20 is used for transmitting signals, and the receiving antenna 30 is used for receiving signals. The frequency of the signal transmitted by the transmitting antenna 20 and the frequency of the signal received by the receiving antenna 30 can be the same, or the frequency of the signal transmitted by the transmitting antenna 20 and the frequency of the signal received by the receiving antenna 30 can be different. The ground plate 10 is used for reflecting and gathering signals on the receiving point of the receiving antenna 30, so as to improve the sensitivity of the receiving antenna 30 to signal reception. The transmitting antenna 20 and the receiving antenna 30 are arranged at the same side of the ground plate 10, so as to make full use of the space at one side of the ground plate 10. The ground plate 10 can block and shield other signals from the other side which is not provided with the transmitting antenna 20 and the receiving antenna 30, so as to avoid the influence of other signals on the transmitting antenna 20 and the receiving antenna 30, and improve the transmission effect of the transmitting antenna 20 and the reception effect of the receiving antenna 30.

[0071] The number of the transmitting antennas 20 can be at least two, and the at least two transmitting antennas 20 are arranged in an array to improve the strength of the signal transmitted by the transmitting antennas 20; the number of the receiving antennas 30 can be at least two, and the at least two receiving antennas 30 are arranged in an array to improve the receiving ability of the receiving antennas 30, and the arrayed transmitting antennas 20 and the arrayed receiving antennas 30 are arranged at intervals, which can avoid the influence of the signal transmitted by the transmitting antennas 20 on the signal receiving of the receiving antennas 30 to a certain extent.

[0072] The antenna array 100 further comprises at least two first isolation pieces 40 and at least one second isolation piece 50, and the materials of the first isolation pieces 40 and the second isolation piece 50 both comprise at least one of metal and wave-absorbing material, and the wave-absorbing material comprises but is not limited to a polymer material capable of absorbing electromagnetic waves and a sponge material doped with carbon powder, so that the first isolation pieces 40 and the second isolation piece 50 both have shielding ability for electromagnetic waves, and the first isolation pieces 40 and the second isolation piece 50 can both be used to improve the isolation degree between the transmitting antennas 20 and the receiving antennas 30. The at least two first isolation pieces 40 and the at least one second isolation piece 50 are both connected to the surface of the ground plate 10, and the at least two first isolation pieces 40 and the at least one second isolation piece 50 are respectively located on the opposite sides of the ground plate 10, so that the first isolation pieces 40 and the second isolation piece 50 respectively improve the isolation degree between the transmitting antennas 20 and the receiving antennas 30 on the opposite sides of the ground plate 10.

[0073] Please refer to FIG. 2, the at least two first isolation pieces 40, the transmitting antennas 20 and the receiving antennas 30 are located on the same side of the ground plate 10, and the direction from the transmitting antennas 20 to the receiving antennas 30 is the first direction (such as the X direction in FIG. 1 and FIG. 2), and the transmitting antennas 20, the at least two first isolation pieces 40 and the receiving antennas 30 are arranged at intervals in the first direction, so that the at least two first isolation pieces 40 are located between the transmitting antennas 20 and the receiving antennas 30. When the transmitting antennas 20 transmit signals, electromagnetic waves with a certain strength will be generated in the first direction, the first isolation pieces 40 have shielding ability for electromagnetic waves, and the at least two first isolation pieces 40 are arranged between the transmitting antennas 20 and the receiving antennas 30, so that the at least two first isolation pieces 40 can shield part of the electromagnetic waves in the first direction, thereby reducing the influence of the signals transmitted by the transmitting antennas 20 on the signal receiving of the receiving antennas 30 and improving the isolation degree between the transmitting antennas 20 and the receiving antennas 30.

[0074] In one embodiment, referring to FIG. 2, the at least two first isolation members 40 can be arranged to be spaced apart from the transmitting antenna 20 and the receiving antenna 30, avoiding the first isolation members 40 from contacting the transmitting antenna 20 or the receiving antenna 30, and facilitating to reduce the influence of the arrangement of the first isolation members 40 on the signal transmission of the transmitting antenna 20 or the signal reception of the receiving antenna 30. Meanwhile, the at least two first isolation members 40 can be arranged to be spaced apart in the first direction, so that the at least two first isolation members 40 are more uniformly distributed between the transmitting antenna 20 and the receiving antenna 30. In the case of the same number of first isolation members 40, compared with the case of the at least two first isolation members 40 being arranged to be attached to each other, the at least two first isolation members 40 arranged to be spaced apart in the first direction have an increased distribution range in the first direction, which is conducive to improving the signal isolation capability of the at least two first isolation members 40 between the transmitting antenna 20 and the receiving antenna 30.

[0075] Referring to FIG. 3, FIG. 3 shows a top view of the antenna array 100 provided by the embodiment shown in FIG. 1. The extension direction of the at least two first isolation members 40 intersects the first direction (e.g., the X direction in FIG. 3), i.e., the extension direction of the at least two first isolation members 40 has an included angle with the first direction, so that each first isolation member 40 has a sufficient area to shield the electromagnetic waves in the first direction, which is conducive to ensuring the signal isolation capability of the at least two first isolation members 40 between the transmitting antenna 20 and the receiving antenna 30. Meanwhile, the first isolation members 40 have a relatively small occupied space in the first direction, which is conducive to arranging more first isolation members 40 in the spacing region between the transmitting antenna 20 and the receiving antenna 30, and further improving the signal isolation capability of the at least two first isolation members 40 between the transmitting antenna 20 and the receiving antenna 30. Conversely, when the extension direction of the first isolation members 40 is parallel to the first direction, the projection area of the first isolation members 40 in the plane perpendicular to the first direction is small, so that the shielding area of the first isolation members 40 for the electromagnetic waves in the first direction is small, and the first isolation members 40 have a large occupied space in the first direction, which are both not conducive to improving the isolation degree between the transmitting antenna 20 and the receiving antenna 30.

[0076] Part of the electromagnetic wave signals transmitted by the transmitting antenna 20 can reach the side of the ground plate 10 opposite to the transmitting antenna 20, and be coupled at the ground plate 10, and finally produce a coupled signal at the receiving antenna 30, affecting the signal reception of the receiving antenna 30. Referring to FIG. 2, at least one second isolation member 50 is arranged at the side of the ground plate 10 opposite to the transmitting antenna 20. The second isolation member 50 has a shielding capability for electromagnetic waves, and can shield part of the electromagnetic waves at the side of the ground plate 10 opposite to the transmitting antenna 20, thereby reducing the influence of the electromagnetic waves at the side of the ground plate 10 opposite to the transmitting antenna 20 on the signal reception of the receiving antenna 30, and improving the signal isolation degree between the transmitting antenna 20 and the receiving antenna 30.

[0077] Please refer to FIG. 4, which shows a bottom view of the antenna array 100 provided by the embodiment shown in FIG. 1. Similarly, the extension direction of the at least one second isolation member 50 intersects the first direction (e.g., the X direction in FIG. 4), i.e., the extension direction of the at least two second isolation members 50 each has an included angle with the first direction, so that each second isolation member 50 has a sufficient area to shield the electromagnetic wave signal in the first direction, which is beneficial to improve the isolation capability of the at least one second isolation member 50 to the signal between the transmitting antenna 20 and the receiving antenna 30, and reduce the occupied space of the second isolation member 50 in the first direction, which is beneficial to arrange more second isolation members 50, and further improve the isolation capability of the second isolation member 50 to the signal between the transmitting antenna 20 and the receiving antenna 30. When the number of the second isolation members 50 is at least two, the at least two second isolation members 50 are arranged at intervals in the first direction, so that the at least two second isolation members 50 are more evenly distributed on the side of the ground plate 10 away from the transmitting antenna 20, which is also beneficial to improve the isolation capability of the second isolation member 50 to the signal between the transmitting antenna 20 and the receiving antenna 30.

[0078] Please refer to FIG. 1 and FIG. 2, the electromagnetic wave signal emitted by the transmitting antenna 20 can be coupled with the ground plate 10 to generate a current on the surface of the ground plate 10, and the direction perpendicular to the ground plate 10 is the second direction (e.g., the Z direction in FIG. 1 and FIG. 2). When the second isolation member 50 and the first isolation member 40 are not opposite in the second direction, the orthogonal projection of the second isolation member 50 on the plane perpendicular to the second direction and the orthogonal projection of the first isolation member 40 on the plane perpendicular to the second direction are spaced apart, i.e., the non-opposite second isolation member 50 and the first isolation member 40 are arranged at intervals in the first direction, and the current is easy to bypass the first isolation member 40 or the second isolation member 50 through the interval area. If all the second isolation members 50 and the first isolation members 40 are not opposite, the current is easy to travel alternately on the two opposite surfaces of the ground plate 10, and bypass all the first isolation members 40 and the second isolation members 50 to reach the receiving antenna 30, thereby affecting the isolation capability of the first isolation member 40 and the second isolation member 50 to the transmitting antenna 20 and the receiving antenna 30.

[0079] Please refer to FIG. 2 and FIG. 5, FIG. 5 shows a front view of the first isolation member 40 and the second isolation member 50 in the antenna array 100 provided by the embodiments of the present application. In the embodiment shown in FIG. 2, the first isolation member 40 and the second isolation member 50 are equal in number and one-to-one corresponding. In the embodiment shown in FIG. 5, the first isolation member 40 and the second isolation member 50 are different in number, and only one second isolation member 50 corresponds to the first isolation member 40. In the embodiments shown in FIG. 2 and FIG. 5, at least one second isolation member 50 and the first isolation member 40 correspond to each other in the second direction (such as the Z direction in FIG. 2 and FIG. 5). When the second isolation member 50 and the first isolation member 40 correspond to each other in the second direction, the two surfaces of the corresponding second isolation member 50 and the first isolation member 40 connected to the ground plate 10 coincide in the plane perpendicular to the second direction, so that the corresponding second isolation member 50 and the first isolation member 40 can jointly block the current on the two surfaces of the ground plate 10 facing away from each other, avoiding the current bypassing the first isolation member 40 or the second isolation member 50, improving the blocking ability of the first isolation member 40 and the second isolation member 50 to the current, and further improving the isolation between the transmitting antenna 20 and the receiving antenna 30.

[0080] Meanwhile, when at least one second isolation member 50 and the first isolation member 40 correspond to each other in the second direction, since the first isolation member 40 is located between the transmitting antenna 20 and the receiving antenna 30, in the plane perpendicular to the second direction, the orthographic projection of the at least one second isolation member 50 is located between the orthographic projection of the transmitting antenna 20 and the orthographic projection of the receiving antenna 30. The at least one second isolation member 50 is located on the surface of the ground plate 10 facing away from the transmitting antenna 20, and is opposite to the area between the transmitting antenna 20 and the receiving antenna 30. When part of the electromagnetic wave signal emitted by the transmitting antenna 20 reaches the side of the ground plate 10 facing away from the transmitting antenna 20, the second isolation member 50 can effectively shield the propagation of the electromagnetic wave signal on the surface of the ground plate 10 facing away from the transmitting antenna 20 from the side of the transmitting antenna 20 to the side of the receiving antenna 30, ensuring the isolation ability of the second isolation member 50 to the transmitting antenna 20 and the receiving antenna 30.

[0081] In the sub-band full duplex communication system, the transmitting frequency band of the transmitting antenna 20 includes a frequency band capable of simultaneously transmitting and receiving signals, when the transmitting antenna 20 and the receiving antenna 30 simultaneously transmit and receive signals in the same frequency band, due to the proximity of the frequency of the signals and the simultaneous transmission and reception of the signals, the transmitting signal of the transmitting antenna 20 has a greater impact on the signal reception of the receiving antenna 30, in order to achieve better signal reception effect, the isolation between the transmitting antenna 20 and the receiving antenna 30 is required to be higher. The first isolation piece 40 is arranged on the surface of the grounding plate 10 where the transmitting antenna 20 and the receiving antenna 30 are arranged, and the second isolation piece 50 is arranged on the surface of the grounding plate 10 opposite to the transmitting antenna 20 and the receiving antenna 30, which can realize signal isolation between the transmitting antenna 20 and the receiving antenna 30 on both sides of the grounding plate 10, and improve the isolation between the transmitting antenna 20 and the receiving antenna 30. At the same time, at least one second isolation piece 50 and the first isolation piece 40 correspond to each other in the second direction, avoiding the current coupled by the grounding plate 10 bypassing the first isolation piece 40 and the second isolation piece 50, reducing the influence of the current coupled by the grounding plate 10 on the signal reception of the receiving antenna 30, and further improving the isolation between the transmitting antenna 20 and the receiving antenna 30.

[0082] The application provides an antenna array 100, which comprises a grounding plate 10, a transmitting antenna 20 and a receiving antenna 30, the transmitting antenna 20 and the receiving antenna 30 are arranged on the same side of the grounding plate 10 to realize signal transmission of the transmitting antenna 20 and signal reception of the receiving antenna 30. The antenna array 100 further comprises at least two first isolation pieces 40 and at least one second isolation piece 50, the at least two first isolation pieces 40 and the at least one second isolation piece 50 are respectively connected with two opposite surfaces of the grounding plate 10, the at least two first isolation pieces 40 are located between the transmitting antenna 20 and the receiving antenna 30, and the at least one second isolation piece 50 is located on the side of the grounding plate 10 opposite to the transmitting antenna 20 and the receiving antenna 30, so that the first isolation piece 40 and the second isolation piece 50 shield electromagnetic wave signals in the direction from the transmitting antenna 20 to the receiving antenna 30 on the two opposite sides of the grounding plate 10, and the isolation between the transmitting antenna 20 and the receiving antenna 30 is improved.

[0083] The extending directions of the first isolation member 40 and the second isolation member 50 are both intersected with the first direction, so that the first isolation member 40 and the second isolation member 50 both have sufficient area to shield the electromagnetic wave signals in the first direction, and the occupying space of the first isolation member 40 and the second isolation member 50 in the first direction is reduced, which is beneficial to increase the setting number of the first isolation member 40 and the second isolation member 50. The at least two first isolation members 40 are arranged at intervals in the first direction, so that the distribution range of the at least two first isolation members 40 in the first direction is increased, which is beneficial to improve the isolation capability of the first isolation member 40 and the second isolation member 50 to the signals between the transmitting antenna 20 and the receiving antenna 30.

[0084] The at least one second isolation member 50 corresponds to the first isolation member 40 in the second direction, that is, the at least one second isolation member 50 corresponds to the interval region between the transmitting antenna 20 and the receiving antenna 30, which is beneficial to improve the isolation capability of the at least one second isolation member 50 to the signals between the transmitting antenna 20 and the receiving antenna 30. Meanwhile, the corresponding second isolation member 50 and the first isolation member 40 can jointly block the current generated by the coupling of the grounding plate 10 on the two surfaces opposite to each other of the grounding plate 10, so as to avoid the current bypassing the first isolation member 40 or the second isolation member 50 to affect the signal reception of the receiving antenna 30, which is beneficial to further improve the isolation degree between the transmitting antenna 20 and the receiving antenna 30.

[0085] In a possible implementation, referring to FIG. 2, the at least two first isolation members 40 are parallel in the first direction (for example, the X direction in FIG. 2), that is, the adjacent two first isolation members 40 are arranged at intervals in the first direction. The electromagnetic wave signals emitted by the transmitting antenna 20 are divergent, so that part of the electromagnetic wave signals bypasses the first isolation member 40 and enters the interval region between the adjacent two first isolation members 40, and is coupled with the grounding plate 10 to generate current on the surface of the grounding plate 10. The first isolation member 40 cannot block the current generated by the coupling, so that the current generated by the coupling can be transmitted to the receiving antenna 30 through the grounding plate 10, and a coupling signal is generated at the receiving antenna 30. The coupling signal will interfere with the signal reception of the receiving antenna 30, so that the signal reception effect of the receiving antenna 30 is deteriorated. Therefore, when the adjacent two first isolation members 40 are arranged at intervals, the electromagnetic wave signals bypassing the first isolation member 40 and entering the interval region between the adjacent two first isolation members 40 will affect the reception of other signals by the receiving antenna 30, and thus the isolation degree between the transmitting antenna 20 and the receiving antenna 30 is reduced.

[0086] The surface of the at least two first isolation members 40 and the ground plate 10 is connected, so that the two adjacent first isolation members 40 and the ground plate 10 form a semi-closed structure, which has two first isolation members 40 blocking on both sides in the first direction respectively, and has an opening on one side in the second direction (such as the Z direction in FIG. 2) and has the ground plate 10 blocking on the other side. The two adjacent first isolation members 40 and the ground plate 10 have hindering ability to the electromagnetic waves inside the semi-closed structure, and the opening side in the second direction does not have hindering ability to the electromagnetic waves inside the semi-closed structure. When the electromagnetic waves emitted by the transmitting antenna 20 enter the space enclosed by the semi-closed structure from the opening of the semi-closed structure, the electromagnetic waves tend to shift towards the side close to the opening, and the two adjacent first isolation members 40 are arranged in parallel in the first direction, so that the two adjacent first isolation members 40 can form electromagnetic waves perpendicular to the direction of the two adjacent first isolation members 40.

[0087] The distance between the two adjacent first isolation members 40 is an integer multiple of half of the wavelength corresponding to the frequency in the transmission frequency band of the transmitting antenna 20, so that after the electromagnetic waves enter between the two adjacent first isolation members 40, the electromagnetic waves can form two secondary electromagnetic waves with opposite directions, same frequencies and same intensities, and the two secondary electromagnetic waves can cancel each other out, so that the electromagnetic waves in the interval between the two adjacent first isolation members 40 are eliminated, avoiding the electromagnetic waves between the two adjacent first isolation members 40 coupling with the ground plate 10 to generate current, that is, avoiding the influence of the electromagnetic waves between the two adjacent first isolation members 40 on the receiving antenna 30, which is beneficial to improve the isolation between the transmitting antenna 20 and the receiving antenna 30. At the same time, the two adjacent first isolation members 40 are arranged in parallel in the first direction, which is also beneficial to simplify the setting of the interval distance of the at least two first isolation members 40, and ensure that the electromagnetic wave signals entering between the two adjacent first isolation members 40 can be better eliminated.

[0088] By designing the distance between the two adjacent first isolation members 40, the isolation of the at least two first isolation members 40 to the electromagnetic wave signals in a specific frequency band is realized, without the need for complex settings of the structure and material of the first isolation member 40. The structure and material of the first isolation member 40 are relatively simple, which is beneficial to simplify the setting mode of the antenna array 100 and ensure the isolation between the transmitting antenna 20 and the receiving antenna 30 in the antenna array 100.

[0089] In the sub-band full-duplex communication system, the transmitting frequency band of the transmitting antenna 20 includes a frequency band capable of simultaneously transmitting and receiving signals, and when the transmitting antenna 20 and the receiving antenna 30 respectively transmit and receive signals in the same frequency band, the transmitting signal of the transmitting antenna 20 has the most obvious influence on the signal reception of the receiving antenna 30. The distance between the two adjacent first isolation pieces 40 is set according to the frequency band capable of simultaneously transmitting and receiving signals, and the isolation between the transmitting antenna 20 and the receiving antenna 30 can be improved for the frequency band. It can be understood that the positive integer multiple of half of the wavelength corresponding to the frequency in the transmitting frequency band is the positive integer multiple of half of the wavelength corresponding to the intermediate frequency of the transmitting frequency band.

[0090] Since the distance between the two adjacent first isolation pieces 40 is a positive integer multiple of half of the wavelength corresponding to the frequency in the transmitting frequency band of the transmitting antenna 20, the distance between any two adjacent first isolation pieces 40 can be completely the same, or the distance between any two adjacent first isolation pieces 40 can not be completely the same. The distance between the two adjacent first isolation pieces 40 will be described in detail below in conjunction with specific embodiments of FIG. 3 and FIG. 6.

[0091] In an embodiment, please refer to FIG. 3, when the multiples of half of the wavelength corresponding to the frequency in the transmitting frequency band of the transmitting antenna 20 corresponding to the distance between any two adjacent first isolation pieces 40 are all equal, the distance between any two adjacent first isolation pieces 40 is equal, which is beneficial to simplify the setting mode of the first isolation piece 40, ensure the accuracy of the distance between the two adjacent first isolation pieces 40, and further improve the elimination effect of the electromagnetic wave by the two adjacent first isolation pieces 40, and ensure the isolation effect of the first isolation piece 40 on the transmitting antenna 20 and the receiving antenna 30.

[0092] For example, the distance between any two adjacent first isolation pieces 40 is half of the wavelength corresponding to the frequency in the transmitting frequency band of the transmitting antenna 20, and the distance between the two adjacent first isolation pieces 40 is relatively close, so that the electromagnetic wave entering the two adjacent first isolation pieces 40 can form an electromagnetic wave perpendicular to the direction of the two adjacent first isolation pieces 40, which is beneficial to form two secondary electromagnetic waves with opposite directions, same frequencies and same intensities, and ensure that the two secondary electromagnetic waves can be well cancelled out, avoiding the problem that the distance between the two adjacent first isolation pieces 40 is too large, resulting in poor cancellation effect of the two secondary electromagnetic waves, and part of the electromagnetic wave not being cancelled out is coupled with the ground plate 10 to generate a current, which reduces the isolation ability of the at least two first isolation pieces 40.

[0093] In an embodiment, referring to FIG. 6, a top view of the antenna array 100 is shown, in which the distances between two adjacent first isolation members 40 are not all the same. When the distance between at least one pair of adjacent first isolation members 40 is not equal to the distance between other pairs of adjacent first isolation members 40, the distances between any two adjacent first isolation members 40 are not all the same, which is beneficial for setting the distribution density of the first isolation members 40 according to the intensity of electromagnetic waves at different positions, reducing the number of first isolation members 40, and saving the cost of setting the antenna array 100.

[0094] Referring to FIG. 3 and FIG. 7, a top view of the antenna array 100 is shown, in which the extension direction of the first isolation members 40 is not perpendicular to the first direction. At least two first isolation members 40 are parallel in the first direction (e.g., the X direction in FIG. 3 and FIG. 7), and the direction perpendicular to the first direction and the second direction is the third direction (e.g., the Y direction in FIG. 3 and FIG. 7). At least two first isolation members 40 can all extend in the third direction, or the extension direction of at least two first isolation members 40 is staggered with the third direction. When at least two first isolation members 40 all extend in the third direction, the first direction is perpendicular to the at least two first isolation members 40, and the electromagnetic waves between two adjacent first isolation members 40 are perpendicular to the direction between the two adjacent first isolation members 40, that is, the secondary electromagnetic waves between two adjacent first isolation members 40 are in the first direction. The direction of the secondary electromagnetic waves is the same as the direction from the transmitting antenna 20 to the receiving antenna 30, which is beneficial for improving the cancellation effect of the two secondary electromagnetic waves. When the extension direction of at least two first isolation members 40 is staggered with the third direction, the first direction is not perpendicular to the at least two first isolation members 40, and the direction of the secondary electromagnetic waves between two adjacent first isolation members 40 is staggered with the first direction. The direction of the secondary electromagnetic waves is staggered with the direction from the transmitting antenna 20 to the receiving antenna 30, and the cancellation effect of the two secondary electromagnetic waves is relatively poor.

[0095] In a possible embodiment, referring to FIG. 2 and FIG. 4, the number of second isolation members 50 is at least two, and at least two second isolation members 50 are parallel in the first direction. Similarly, the surface of the at least two second isolation members 50 and the ground plate 10 away from the transmitting antenna 20 is connected, so that two adjacent second isolation members 50 and the ground plate 10 form a semi-closed structure. The at least two second isolation members 50 are arranged in parallel in the first direction, so that the electromagnetic waves perpendicular to the direction between two adjacent second isolation members 50 can be generated between the two adjacent second isolation members 50.

[0096] The distance between the two adjacent second isolation members 50 is an integer multiple of half of the wavelength corresponding to the frequency in the transmission frequency band of the transmission antenna 20, so that the electromagnetic wave can form two secondary electromagnetic waves with opposite directions, same frequencies and same intensities after entering between the two adjacent second isolation members 50, and the two secondary electromagnetic waves can cancel each other out, avoiding the electromagnetic wave between the two adjacent second isolation members 50 from coupling with the ground plate 10 to generate a current, that is, avoiding the electromagnetic wave between the two adjacent second isolation members 50 from affecting the reception antenna 30, which is beneficial to improve the isolation between the transmission antenna 20 and the reception antenna 30. Meanwhile, the two adjacent second isolation members 50 are arranged in parallel in the first direction, which is also beneficial to simplify the arrangement of the distance between the at least two second isolation members 50 and ensure that the electromagnetic wave can be better eliminated after entering between the two adjacent second isolation members 50.

[0097] The at least two second isolation members 50 located on the side of the ground plate 10 away from the transmission antenna 20 and the reception antenna 30 can not only shield electromagnetic wave signals, but also eliminate part of the electromagnetic wave signals, avoiding the electromagnetic wave signals on the side of the ground plate 10 away from the transmission antenna 20 from coupling with the surface of the ground plate 10 away from the transmission antenna 20 to generate a current. Compared with arranging only a single second isolation member 50, this is beneficial to further improve the isolation between the transmission antenna 20 and the reception antenna 30.

[0098] Similar to the first isolation member 40, the multiples corresponding to the distance between any two adjacent second isolation members 50 can be equal, so that the distance between any two adjacent second isolation members 50 is equal; or the multiples corresponding to the distance between at least one of the two adjacent second isolation members 50 and the distance between other adjacent second isolation members 50 are not equal, so that the distance between any two adjacent second isolation members 50 is not completely equal. The at least two second isolation members 50 can all extend in the third direction, or the extension directions of the at least two second isolation members 50 can all be staggered with the third direction.

[0099] In an embodiment, referring to FIGS. 2 and 4, the distance between any two adjacent second isolation members 50 is equal, so as to simplify the arrangement of the second isolation member 50 and ensure the accuracy of the distance between the two adjacent second isolation members 50. The distance between the two adjacent second isolation members 50 can be half of the wavelength corresponding to the frequency in the transmission frequency band of the transmission antenna 20, so that the distance between the two adjacent second isolation members 50 is relatively small, which is beneficial to ensure that the two secondary electromagnetic waves formed between the two adjacent second isolation members 50 are better canceled out, thereby ensuring the isolation effect of the second isolation member 50 on the transmission antenna 20 and the reception antenna 30. The at least two second isolation members 50 can all extend in the third direction (such as the Y direction in FIG. 4), so that the two secondary electromagnetic waves formed between the two adjacent second isolation members 50 extend in the first direction (such as the X direction in FIGS. 2 and 4), which is beneficial to improve the cancellation effect of the two secondary electromagnetic waves.

[0100] In one embodiment, referring to FIG. 2 and FIG. 8, FIG. 8 shows a front view of the part of the second isolation member 50 opposite to the transmitting antenna 20 in the antenna array 100 provided by the embodiments of the present application. The distance between the adjacent two first isolation members 40 and the distance between the adjacent two second isolation members 50 are equal, which is conducive to simplifying the setting mode of the at least two first isolation members 40 and the at least two second isolation members 50, improving the accuracy of the position setting of the first isolation member 40 and the second isolation member 50, and ensuring the cancellation ability of the adjacent two first isolation members 40 and the adjacent two second isolation members 50 to the electromagnetic wave signal. At the same time, since the at least one second isolation member 50 and the first isolation member 40 correspond to each other in the second direction (such as the Z direction in FIG. 2 and FIG. 8), when the distance between the adjacent two first isolation members 40 and the distance between the adjacent two second isolation members 50 are equal, all the second isolation members 50 correspond to the first isolation member 40, or part of the second isolation members 50 correspond to the first isolation member 40, and the other part of the second isolation members 50 are not provided with the first isolation member 40 in the second direction, which is conducive to increasing the number of the corresponding first isolation member 40 and the second isolation member 50, improving the common blocking ability of the corresponding first isolation member 40 and the second isolation member 50 to the current, avoiding the current generated by the coupling of the ground plate 10 bypassing the first isolation member 40 and the second isolation member 50, and further improving the isolation degree between the transmitting antenna 20 and the receiving antenna 30.

[0101] In one possible embodiment, referring to FIG. 2 and FIG. 8, the at least two first isolation members 40 are located between the transmitting antenna 20 and the receiving antenna 30, and the at least one second isolation member 50 can correspond to the spacing region between the transmitting antenna 20 and the receiving antenna 30, or part of the second isolation members 50 correspond to the spacing region between the transmitting antenna 20 and the receiving antenna 30, and the other part of the second isolation members 50 do not correspond to the spacing region between the transmitting antenna 20 and the receiving antenna 30.

[0102] Please refer to FIG. 2 and FIG. 5, when the at least one second isolation piece 50 corresponds to the interval region between the transmitting antenna 20 and the receiving antenna 30, the projection of the at least one second isolation piece 50 on the ground plate 10 is located between the projection of the transmitting antenna 20 on the ground plate 10 and the projection of the receiving antenna 30 on the ground plate 10, the region between the transmitting antenna 20 and the receiving antenna 30 is shielded and eliminated by the at least one second isolation piece 50, so that the second isolation piece 50 has better isolation capacity for the transmitting antenna 20 and the receiving antenna 30. At the same time, it also makes the second isolation piece 50 more easily correspond to the first isolation piece 40, the number of the corresponding second isolation piece 50 and the first isolation piece 40 increases, which is beneficial to improve the isolation capacity of the first isolation piece 40 and the second isolation piece 50, and further improve the isolation degree between the transmitting antenna 20 and the receiving antenna 30, the setting range of the second isolation piece 50 becomes smaller, so that the number of the second isolation piece 50 is relatively less, which is also beneficial to save the setting cost of the antenna array 100.

[0103] Please refer to FIG. 8, when part of the second isolation piece 50 corresponds to the interval region between the transmitting antenna 20 and the receiving antenna 30, the projection of the part of the second isolation piece 50 on the ground plate 10 is located between the projection of the transmitting antenna 20 on the ground plate 10 and the projection of the receiving antenna 30 on the ground plate 10, and the projection of the other part of the second isolation piece 50 on the ground plate 10 is not located between the projection of the transmitting antenna 20 on the ground plate 10 and the projection of the receiving antenna 30 on the ground plate 10. The part of the second isolation piece 50 corresponding to the interval region between the transmitting antenna 20 and the receiving antenna 30 can form a barrier between the transmitting antenna 20 and the receiving antenna 30, to ensure the shielding and eliminating capacity of the second isolation piece 50 for signals; the other part of the second isolation piece 50 not corresponding to the interval region between the transmitting antenna 20 and the receiving antenna 30 can correspond to the transmitting antenna 20 or the receiving antenna 30, to shield signals at the point where the electromagnetic wave signal occurs or the receiving point which is easily affected by the electromagnetic wave signal, and further improve the isolation capacity of the second isolation piece 50.

[0104] In an embodiment, referring to FIG. 2, the number of the first isolation members 40 is the same as the number of the second isolation members 50, the distance between two adjacent first isolation members 40 is the same as the distance between two adjacent second isolation members 50, and all the second isolation members 50 correspond to the spacing area between the transmitting antenna 20 and the receiving antenna 30, so that the first isolation members 40 and the second isolation members 50 are arranged one by one, which is beneficial to simplify the arrangement mode of the first isolation members 40 and the second isolation members 50, increase the number of the corresponding first isolation members 40 and second isolation members 50, and improve the isolation capability of the first isolation members 40 and the second isolation members 50. At the same time, the arrangement range of the second isolation members 50 is smaller, which is beneficial to reduce the number of the second isolation members 50, save the arrangement cost of the antenna array 100, and avoid the problem that the electromagnetic wave signal bypasses the second isolation member 50 corresponding to the transmitting antenna 20 or the receiving antenna 30, resulting in poor isolation effect of part of the second isolation members 50 and increased arrangement cost.

[0105] In a possible implementation, referring to FIG. 8, in the first direction (for example, the X direction in FIG. 8), the minimum distance between the at least two first isolation members 40 and the transmitting antenna 20 is less than or equal to the minimum distance between the at least two first isolation members 40 and the receiving antenna 30, so that the at least two first isolation members 40 are closer to the side of the transmitting antenna 20. Similarly, the minimum distance between the at least one second isolation member 50 and the transmitting antenna 20 can also be less than or equal to the minimum distance between the at least one second isolation member 50 and the receiving antenna 30, so that the at least one second isolation member 50 is also closer to the side of the transmitting antenna 20.

[0106] The electromagnetic wave signal emitted by the transmitting antenna 20 has the maximum intensity on the side close to the transmitting antenna 20, and the intensity of the electromagnetic wave signal gradually decreases in the direction from the transmitting antenna 20 to the receiving antenna 30. Making the at least two first isolation members 40 or the at least one second isolation member 50 closer to the side of the transmitting antenna 20 is beneficial to the first isolation members 40 or the second isolation members 50 to shield the signal near the occurrence point of the electromagnetic wave signal, so as to ensure the isolation effect of the first isolation members 40 or the second isolation members 50 on the electromagnetic wave signal. At the same time, since a certain number of first isolation members 40 and second isolation members 50 are arranged on the side close to the transmitting antenna 20, the intensity of the electromagnetic wave signal on the side close to the receiving antenna 30 is small, and at this time, the isolation degree between the transmitting antenna 20 and the receiving antenna 30 is good, so that the number of the first isolation members 40 or the second isolation members 50 arranged on the side close to the receiving antenna 30 can be reduced, and the arrangement cost of the antenna array 100 can be saved.

[0107] In a possible implementation, referring to FIG. 1 and FIG. 9, FIG. 9 shows a left view of the antenna array 100 provided by the implementation shown in FIG. 1. In a plane perpendicular to the first direction (for example, the X direction in FIG. 1), the orthographic projection of each of the at least two first isolation members 40 completely covers the orthographic projection of the transmitting antenna 20, so that the area of each of the first isolation members 40 is greater than or equal to the area of the transmitting antenna 20. The size of the first isolation member 40 is reasonably configured, which is conducive to ensuring the shielding capability of the first isolation member 40 to the electromagnetic wave signal generated by the transmitting antenna 20, and further ensuring the isolation degree of the transmitting antenna 20 and the receiving antenna 30, thereby avoiding the problem that the size of the first isolation member 40 is too small compared with the size of the transmitting antenna 20, resulting in poor isolation effect of the first isolation member 40. It can be understood that when the transmitting antenna 20 is arranged in an array, the area of each of the first isolation members 40 is greater than or equal to the area of the transmitting antenna 20 arranged in an array.

[0108] Referring to FIG. 9, in the third direction (for example, the Y direction in FIG. 9), the length of the first isolation member 40 is greater than or equal to the length of the transmitting antenna 20, which is conducive to ensuring that the first isolation member 40 has sufficient length to shield signals in the third direction, and avoiding the problem that the length of the first isolation member 40 in the third direction is too small, resulting in that the signal bypasses the first isolation member 40 through both ends of the first isolation member 40 in the third direction, so that the isolation capability of the first isolation member 40 to the signal is poor. In the second direction (for example, the Z direction in FIG. 9), the length of the first isolation member 40 is greater than or equal to the length of the transmitting antenna 20, so that the first isolation member 40 has sufficient height to shield signals, and the electromagnetic wave signal entering between the adjacent two first isolation members 40 can be cancelled, thereby ensuring the shielding and cancelling effect of the first isolation member 40 to the signal.

[0109] In an embodiment, referring to FIG. 9, in the second direction, the height of the at least two first isolation members 40 protruding from the ground plate 10 is 1 to 3 times the height of the transmitting antenna 20 protruding from the ground plate 10. Taking the height of the transmitting antenna 20 protruding from the ground plate 10 as H, the height of the first isolation member 40 protruding from the ground plate 10 as H1, the transmitting antenna 20 and the first isolation member 40 satisfy the relationship: H≤H1≤3H. Specifically, the value of H1 can be H, 1.5H, 2H, 2.5H, 3H, and the like.

[0110] By satisfying the above relationship between the transmitting antenna 20 and the first isolation member 40, the height of the first isolation member 40 relative to the transmitting antenna 20 is properly configured, ensuring that the first isolation member 40 has sufficient height to shield signals and avoiding the height of the first isolation member 40 being too high to affect the normal transmission of signals by the transmitting antenna 20. Below the above relationship, the height of the first isolation member 40 relative to the transmitting antenna 20 is too low, and the electromagnetic wave signals of the transmitting antenna 20 are easily bypassed to the receiving antenna 30, resulting in poor signal isolation capability of the first isolation member 40 between the transmitting antenna 20 and the receiving antenna 30. Exceeding the above relationship, the height of the first isolation member 40 relative to the transmitting antenna 20 is too high, and the first isolation member 40 is likely to block the signal transmission of the transmitting antenna 20, affecting the normal operation of the transmitting antenna 20. At the same time, the height of the first isolation member 40 protruding from the ground plate 10 is too high, which is not conducive to the miniaturization of the antenna array 100 and increases the cost of setting the first isolation member 40.

[0111] In one embodiment, referring to FIG. 1, in a plane perpendicular to the first direction (e.g., the X direction in FIG. 1), the orthographic projections of the at least two first isolation members 40 coincide and have equal projection areas, and the at least two first isolation members 40 are arranged in parallel in the first direction, so that the sizes of the at least two first isolation members 40 are equal, which is conducive to simplifying the arrangement of the at least two first isolation members 40. The adjacent two first isolation members 40 are completely opposite, so that the at least two first isolation members 40 have good signal shielding capability, improving the utilization rate of each first isolation member 40, reducing the setting cost and space occupied by the first isolation member 40, and avoiding the problem that one of the adjacent two first isolation members 40 does not correspond to the other, resulting in poor signal cancellation effect of the non-corresponding part of the first isolation member 40 and increased cost.

[0112] In a plane perpendicular to the first direction, the orthographic projection area of the at least one second isolation member 50 can be greater than or equal to the orthographic projection area of the transmitting antenna 20, or the orthographic projection area of the at least one second isolation member 50 can be less than the orthographic projection area of the transmitting antenna 20, which is not limited in the present application. Since the signal on the side of the ground plate 10 away from the transmitting antenna 20 is weak, the second isolation member 50 only needs to protrude from the surface of the ground plate 10 to achieve good shielding of the signal on the side of the ground plate 10 away from the transmitting antenna 20.

[0113] In one embodiment, referring to FIG. 9, in the third direction (e.g., the Y direction in FIG. 9), the length of the second isolation member 50 is greater than the length of the transmitting antenna 20, which is conducive to ensuring that the second isolation member 50 has sufficient length in the third direction to shield signals and avoids the problem that the length of the second isolation member 50 in the third direction is too small, causing signals to bypass the second isolation member 50 through both ends of the second isolation member 50 in the third direction, and thus the second isolation member 50 has poor signal isolation capability. In the second direction (e.g., the Z direction in FIG. 9), the height of the at least one second isolation member 50 protruding from the ground plate 10 is 0.5 times to 3 times the height of the transmitting antenna 20 protruding from the ground plate 10. Taking the height of the second isolation member 50 protruding from the ground plate 10 as H2, the transmitting antenna 20 and the second isolation member 50 satisfy the relationship H≤H2≤3H. Specifically, the value of H2 can be 0.5H, H, 1.5H, 2H, 2.5H, 3H, etc.

[0114] By making the transmitting antenna 20 and the second isolation member 50 satisfy the above relationship, the height of the second isolation member 50 relative to the transmitting antenna 20 is reasonably configured, which ensures that the second isolation member 50 has sufficient height to shield signals and avoids the problem that the height of the second isolation member 50 is too high and occupies too much space. Below the above relationship, the height of the second isolation member 50 is too low, which has poor shielding effect on electromagnetic wave signals on the side of the ground plate 10 away from the transmitting antenna 20. Above the above relationship, the height of the second isolation member 50 is too high, which occupies too much space, is not conducive to miniaturization of the antenna array 100, and also increases the setting cost of the second isolation member 50.

[0115] In one embodiment, referring to FIG. 9, in the second direction (e.g., the Z direction in FIG. 9), the height of the first isolation member 40 protruding from the ground plate 10 is greater than or equal to the height of the second isolation member 50 protruding from the ground plate 10. Because the signal strength on the side of the ground plate 10 away from the transmitting antenna 20 is weaker than the signal strength on the side of the ground plate 10 provided with the transmitting antenna 20, the first isolation member 40 has a certain height, which is conducive to ensuring the signal isolation capability of the first isolation member 40. The second isolation member 50 located on the side of the ground plate 10 away from the transmitting antenna 20 is mainly used to correspond to the first isolation member 40, so as to avoid the current on the surface of the ground plate 10 from reaching the receiving antenna 30 from the side of the transmitting antenna 20. Therefore, the height of the second isolation member 50 can be relatively smaller than the height of the first isolation member 40, which is conducive to reducing the total length of the antenna array 100 in the second direction, achieving miniaturization of the antenna array 100, facilitating the setting of the antenna array 100, and reducing the setting cost of the second isolation member 50.

[0116] In a possible implementation, referring to FIG. 2 and FIG. 10, FIG. 10 shows a front view of the first isolation member 40 and the second isolation member 50 in the antenna array 100 provided by the embodiments of the present application, which are not perpendicular to the ground plate 10. The shape of the first isolation member 40 or the second isolation member 50 includes but is not limited to a flat plate or an arc shape, and the shape of the second isolation member 50 can be the same as or different from the shape of the first isolation member 40. When the number of the first isolation members 40 is at least two, the shapes of the at least two first isolation members 40 are the same, so as to satisfy that the at least two first isolation members 40 are parallel in the first direction (for example, the X direction in FIG. 2 and FIG. 10); and when the number of the second isolation members 50 is at least two, the shapes of the at least two second isolation members 50 are the same, so as to satisfy that the at least two second isolation members 50 are parallel in the first direction.

[0117] When the shape of the first isolation member 40 or the second isolation member 50 is a flat plate, the first isolation member 40 or the second isolation member 50 can be perpendicular to the ground plate 10, or the first isolation member 40 or the second isolation member 50 can be not perpendicular to the ground plate 10, as long as the at least two first isolation members 40 or the at least two second isolation members 50 are parallel in the first direction.

[0118] In an embodiment, referring to FIG. 10, the shapes of the at least two first isolation members 40 are flat plates, the at least two first isolation members 40 are not perpendicular to the ground plate 10, and the at least two first isolation members 40 are parallel, so that the adjacent two first isolation members 40 can still form the secondary electromagnetic wave perpendicular to the adjacent two first isolation members 40, and the secondary electromagnetic wave can be cancelled, thereby ensuring the isolation capability of the at least two first isolation members 40 to the transmitting antenna 20 and the receiving antenna 30. The number of the second isolation members 50 is at least two, the shapes of the at least two second isolation members 50 are arc shapes, the at least two first isolation members 40 are not perpendicular to the ground plate 10, and the at least two second isolation members 50 are parallel, so that the adjacent two second isolation members 50 can still cancel the electromagnetic wave, thereby ensuring the isolation capability of the at least two second isolation members 50 to the transmitting antenna 20 and the receiving antenna 30. By making the shape of the first isolation member 40 or the second isolation member 50 include but not limited to a flat plate, and the first isolation member 40 or the second isolation member 50 not be limited to be perpendicular to the ground plate 10, the first isolation member 40 or the second isolation member 50 with different shapes can be selected according to actual needs, or the inclination angle of the first isolation member 40 and the second isolation member 50 relative to the ground plate 10 can be set according to actual needs, thereby improving the flexibility of setting the first isolation member 40 and the second isolation member 50.

[0119] In one embodiment, referring to FIG. 2 and FIG. 5, the shapes of the at least two first isolation members 40 and the at least one second isolation member 50 are both flat plates, and the at least two first isolation members 40 and the at least one second isolation member 50 are both perpendicular to the ground plate 10, which facilitates simplifying the arrangement of the first isolation members 40 and the second isolation members 50. Meanwhile, the adjacent two first isolation members 40 form secondary electromagnetic waves in the first direction, and the direction of the secondary electromagnetic waves is the same as the direction from the transmitting antenna 20 to the receiving antenna 30, which facilitates improving the cancellation effect of the two secondary electromagnetic waves, i.e., improving the isolation capability of the at least two first isolation members 40 to the transmitting antenna 20 and the receiving antenna 30. When the number of the second isolation members 50 is at least two, the adjacent two second isolation members 50 form secondary electromagnetic waves in the first direction, which facilitates improving the isolation capability of the at least two second isolation members 50 to the transmitting antenna 20 and the receiving antenna 30, and further improving the isolation degree of the transmitting antenna 20 and the receiving antenna 30.

[0120] In one possible implementation, referring to FIG. 11 and FIG. 12, FIG. 11 shows a structure schematic diagram of the antenna array 100 provided by the embodiment of the present application and provided with the isolation layer 60, and FIG. 12 shows a front view of the antenna array 100 provided by the embodiment of the present application and provided with the isolation layer 60 on the opposite two surfaces of the first isolation member 40. The antenna array 100 further includes the isolation layer 60, the material of the isolation layer 60 is wave-absorbing material, so that the isolation layer 60 has shielding capability to electromagnetic wave signals, and the isolation layer 60 covers the surface of the first isolation member 40 and / or the second isolation member 50, which is used to improve the isolation capability of the first isolation member 40 and / or the second isolation member 50 to the transmitting antenna 20 and the receiving antenna 30.

[0121] The isolation layer 60 covers at least the opposite two surfaces of the adjacent two first isolation members 40. When the isolation layer 60 covers the opposite two surfaces of the adjacent two first isolation members 40, the isolation layer 60 can cover any adjacent two first isolation members 40 to improve the cancellation capability of the adjacent two first isolation members 40 provided with the isolation layer 60 to the electromagnetic waves between them. The adjacent two first isolation members 40 make the electromagnetic waves form two secondary electromagnetic waves that cancel each other, and the isolation layer 60 absorbs the electromagnetic waves on the opposite two surfaces of the adjacent two first isolation members 40, which reduces the intensity of the electromagnetic waves between the adjacent two first isolation members 40. Meanwhile, the isolation layer 60 does not affect the formation of the two secondary electromagnetic waves that cancel each other between the adjacent two first isolation members 40, so that the isolation layer 60 and the first isolation member 40 jointly realize the cancellation of the electromagnetic waves, and further improve the isolation degree of the transmitting antenna 20 and the receiving antenna 30.

[0122] The isolation layer 60 covers at least two opposite surfaces of two adjacent first isolation members 40, so that the isolation layer 60 can cover a larger range between the two adjacent first isolation members 40; meanwhile, when the number of the first isolation members 40 is at least three, the coverage of the isolation layer 60 between different adjacent first isolation members 40 can be the same or different, which will be described in detail below with reference to specific embodiments in Figs. 12-15.

[0123] In an embodiment, as shown in Fig. 12, the isolation layer 60 covers the two opposite surfaces of the two first isolation members 40 closest to the transmitting antenna 20. The electromagnetic wave signal emitted by the transmitting antenna 20 has the maximum intensity on the side close to the transmitting antenna 20, and the isolation layer 60 is arranged at the two first isolation members 40 closest to the transmitting antenna 20, which is conducive to absorbing the signal near the point where the electromagnetic wave signal is strong, and improving the isolation capability of the first isolation member 40 to the transmitting antenna 20 and the receiving antenna 30. Meanwhile, the coverage area of the isolation layer 60 is small, which is conducive to simplifying the arrangement of the isolation layer 60, achieving a better isolation capability improvement effect with the smallest coverage area, and saving the arrangement cost of the isolation layer 60.

[0124] In an embodiment, as shown in Fig. 13, Fig. 13 shows a front view of the two first isolation members 40 closest to the transmitting antenna 20 in the antenna array 100 provided by the embodiment of the application, which are provided with the isolation layer 60. The isolation layer 60 covers the outer surfaces of the two first isolation members 40 closest to the transmitting antenna 20. The electromagnetic wave signal emitted by the transmitting antenna 20 has the maximum intensity on the side close to the transmitting antenna 20, and the isolation layer 60 is arranged at the two first isolation members 40 closest to the transmitting antenna 20, which is conducive to absorbing the signal near the point where the electromagnetic wave signal is strong. The isolation layer 60 on the two opposite surfaces of the two first isolation members 40 can absorb the electromagnetic wave, which is conducive to improving the shielding capability of the two first isolation members 40 to the electromagnetic wave signal; the isolation layer 60 on the two opposite surfaces of the two first isolation members 40 can absorb the electromagnetic wave, which is conducive to improving the shielding capability of the two first isolation members 40 to the electromagnetic wave signal; and the isolation layer 60 on the two opposite surfaces of the two first isolation members 40 can ensure the cancellation of the electromagnetic wave between the two first isolation members 40, which is conducive to improving the isolation capability of the first isolation member 40 to the transmitting antenna 20 and the receiving antenna 30.

[0125] When the isolation layer 60 covers the outer surfaces of the two first isolation members 40 closest to the transmitting antenna 20, the isolation layer 60 can also cover the outer surfaces of the two second isolation members 50 closest to the transmitting antenna 20, the outer surfaces of the two first isolation members 40 closest to the receiving antenna 30, and the outer surfaces of the two second isolation members 50 closest to the receiving antenna 30; or the isolation layer 60 covers all the outer surfaces mentioned above.

[0126] When the isolation layer 60 covers the outer surfaces of the two second isolation pieces 50 closest to the transmitting antenna 20, the isolation layer 60 absorbs signals in the area where the electromagnetic wave signals are strong on the side of the grounding plate 10 away from the transmitting antenna 20, which helps to improve the shielding capability of the second isolation piece 50 against the electromagnetic wave signals. When the isolation layer 60 covers the outer surfaces of the two first isolation pieces 40 closest to the receiving antenna 30, the isolation layer 60 absorbs signals in the receiving area of the grounding plate 10 where the electromagnetic wave signals are easily affected on the side of the grounding plate 10 where the transmitting antenna 20 is located, which helps to improve the shielding capability of the first isolation piece 40 against the electromagnetic wave signals. When the isolation layer 60 covers the outer surfaces of the two second isolation pieces 50 closest to the receiving antenna 30, the isolation layer 60 absorbs signals in the receiving area of the grounding plate 10 where the electromagnetic wave signals are easily affected on the side of the grounding plate 10 away from the transmitting antenna 20, which helps to improve the shielding capability of the second isolation piece 50 against the electromagnetic wave signals.

[0127] In an embodiment, referring to FIG. 14, FIG. 14 shows a front view of the first isolation pieces 40 and the second isolation pieces 50 closest to the transmitting antenna 20 and the receiving antenna 30 in the antenna array 100 provided by the embodiment of the application being provided with the isolation layer 60. The isolation layer 60 covers the surfaces of the two first isolation pieces 40 and the two second isolation pieces 50 closest to the transmitting antenna 20 and the two first isolation pieces 40 and the two second isolation pieces 50 closest to the receiving antenna 30, respectively absorbs electromagnetic waves on the two opposite sides of the grounding plate 10, and absorbs electromagnetic waves on the side close to the transmitting antenna 20 where the electromagnetic wave signals are strong and on the side close to the receiving antenna 30 where the electromagnetic wave signals are easily affected, which helps to improve the isolation capability of the first isolation piece 40 and the second isolation piece 50 against the transmitting antenna 20 and the receiving antenna 30, and further improves the isolation degree of the transmitting antenna 20 and the receiving antenna 30. In addition, the coverage area of the isolation layer 60 is appropriately reduced, which helps to save the setting cost of the isolation layer 60.

[0128] In an embodiment, referring to FIG. 15, FIG. 15 shows a front view of the first isolation pieces 40 and the second isolation pieces 50 in the antenna array 100 provided by the embodiment of the application being provided with the isolation layer 60. The isolation layer 60 covers the surfaces of all the first isolation pieces 40 and all the second isolation pieces 50, so that the isolation layer 60 is provided on each first isolation piece 40 and each second isolation piece 50 to absorb electromagnetic waves. The distribution range of the isolation layer 60 is wide, the absorption effect of the isolation layer 60 against electromagnetic waves is good, which helps to improve the isolation capability of the first isolation piece 40 and the second isolation piece 50 against the transmitting antenna 20 and the receiving antenna 30, and further improves the isolation degree of the transmitting antenna 20 and the receiving antenna 30.

[0129] In one embodiment, referring to FIGS. 13-15, the isolation layer 60 can cover the surface of the ground plate 10 between two adjacent first isolation members 40, and the isolation layer 60 can also cover the surface of the ground plate 10 between two adjacent second isolation members 50. When the isolation layer 60 covers the surface of the ground plate 10 between two adjacent first isolation members 40, the isolation layer 60 on the surface of the ground plate 10 and the isolation layer 60 on the two adjacent first isolation members 40 can be integrated, and the thickness of the isolation layer 60 on the surface of the ground plate 10 can be set according to actual needs, and the thickness of the isolation layer 60 on the surface of the ground plate 10 does not affect the thickness of the isolation layer 60 on the two adjacent first isolation members 40. When the isolation layer 60 covers the surface of the ground plate 10 between two adjacent second isolation members 50, the isolation layer 60 on the surface of the ground plate 10 and the isolation layer 60 on the two adjacent second isolation members 50 can be integrated, and the thickness of the isolation layer 60 on the surface of the ground plate 10 can be set according to actual needs.

[0130] By covering the surface of the ground plate 10 between two adjacent first isolation members 40 and / or two adjacent second isolation members 50 with the isolation layer 60, the distribution range of the isolation layer 60 is increased, and the absorption capacity of the isolation layer 60 for electromagnetic waves is improved. At the same time, the isolation layer 60 on the surface of the ground plate 10 can absorb electromagnetic waves between two adjacent first isolation members 40 and / or two adjacent second isolation members 50, further avoiding the coupling of electromagnetic waves with the surface of the ground plate 10, which is conducive to further improving the isolation capacity of the first isolation member 40 and / or the second isolation member 50, and further improving the isolation of the transmitting antenna 20 and the receiving antenna 30.

[0131] In one possible implementation, referring to FIGS. 15 and 16, FIG. 16 shows a front view of the isolation layer 60 completely filling the area between two adjacent first isolation members 40 and two adjacent second isolation members 50 in the antenna array 100 provided by the embodiments of the present application. The isolation layer 60 can completely fill the spacing area between two adjacent first isolation members 40 and / or two adjacent second isolation members 50, or can not completely fill the spacing area between two adjacent first isolation members 40 and / or two adjacent second isolation members 50. The coverage range of the isolation layer 60 is described in detail below in combination with the specific embodiments of FIGS. 15 and 16.

[0132] In one embodiment, referring to FIG. 15, when the isolation layer 60 does not completely fill the spacing region between the two adjacent first isolation members 40 and the two adjacent second isolation members 50, the isolation layers 60 located at different first isolation members 40 are spaced apart in the first direction (e.g., the X direction in FIG. 15), and the isolation layers 60 located at different second isolation members 50 are spaced apart in the first direction. By spacing apart the isolation layers 60 located at different first isolation members 40 and / or different second isolation members 50 in the first direction, the isolation layer 60 does not need to completely fill the spacing region between the two adjacent first isolation members 40 and / or the two adjacent second isolation members 50, which is conducive to saving the cost of arranging the isolation layer 60.

[0133] For example, referring to FIGS. 12 and 15, two isolation layers 60 located at two opposite surfaces of the two adjacent first isolation members 40 are respectively a first isolation layer 61 and a second isolation layer 62, and the first isolation layer 61 and the second isolation layer 62 are spaced apart in the first direction. Two isolation layers 60 located at two opposite surfaces of the two adjacent second isolation members 50 are respectively a third isolation layer 63 and a fourth isolation layer 64, and the third isolation layer 63 and the fourth isolation layer 64 are spaced apart in the first direction.

[0134] In the first direction (e.g., the X direction in FIGS. 12 and 15), the thickness of the first isolation layer 61 is equal to the thickness of the second isolation layer 62, so that the thickness of the two isolation layers 60 located at two opposite surfaces of the two adjacent first isolation layers 61 is equal. The thickness of the first isolation layer 61 is W1, and the thickness of the second isolation layer 62 is W2. The first isolation layer 61 and the second isolation layer 62 satisfy the relationship W1=W2. The first isolation layer 61 and the second isolation layer 62 can absorb electromagnetic waves between the two adjacent first isolation members 40 on both sides in the first direction. If the thickness of the first isolation layer 61 is different from the thickness of the second isolation layer 62, the absorption capacity of the first isolation layer 61 and the second isolation layer 62 for electromagnetic waves is different, which easily affects the cancellation effect of the two secondary electromagnetic waves formed between the two adjacent first isolation members 40. By equalizing the thickness of the two isolation layers 60 located at two opposite surfaces of the two adjacent first isolation layers 61, the absorption capacity of the two isolation layers 60 for electromagnetic waves is the same, which further ensures the cancellation effect of the two secondary electromagnetic waves formed between the two adjacent first isolation members 40, and improves the isolation degree of the transmitting antenna 20 and the receiving antenna 30.

[0135] Similarly, the thickness of the third isolation layer 63 is equal to the thickness of the fourth isolation layer 64, so that the thickness of the two isolation layers 60 located at two opposite surfaces of the two adjacent second isolation layers 62 is equal, which ensures the absorption capacity of the two isolation layers 60 for electromagnetic waves is the same, and further ensures the cancellation effect of the two secondary electromagnetic waves formed between the two adjacent second isolation members 50, and improves the isolation degree of the transmitting antenna 20 and the receiving antenna 30.

[0136] In an embodiment, referring to FIG. 16, when the isolation layer 60 completely fills the spacing region between the two adjacent first isolation members 40 and the two adjacent second isolation members 50, the isolation layer 60 can absorb all electromagnetic waves between the two adjacent first isolation members 40 and the two adjacent second isolation members 50, increase the distribution range of the isolation layer 60, improve the absorption capacity of the isolation layer 60 to electromagnetic waves, and be beneficial to improve the isolation of the transmitting antenna 20 and the receiving antenna 30. The isolation layer 60 enhances the isolation capacity of the two adjacent first isolation members 40 and / or the two adjacent second isolation members 50 to electromagnetic waves, so that when the distance between the two adjacent first isolation members 40 is far, the two adjacent first isolation members 40 still have good isolation capacity to electromagnetic waves; similarly, when the distance between the two adjacent second isolation members 50 is far, the two adjacent second isolation members 50 still have good isolation capacity to electromagnetic waves. The distance between the two adjacent first isolation members 40 and / or the two adjacent second isolation members 50 has a larger setting range, which can be set according to actual needs.

[0137] The application further provides an antenna system 200, referring to FIG. 17, which shows a system schematic diagram of the antenna system 200 provided by the embodiment of the application. The antenna system 200 comprises a feeding network 201 and the antenna array 100 described in any of the above embodiments. The feeding network 201 and the antenna array 100 are electrically connected, and the feeding network 201 is used to provide signals to the transmitting antenna 20 and / or the receiving antenna 30 of the antenna array 100.

[0138] It can be understood that the antenna system 200 in the embodiment has the antenna array 100 in the above embodiments, and thus the antenna system 200 in the embodiment has all the technical effects of the antenna array 100 in the above embodiments. Since the technical effects of the antenna array 100 have been fully described in the above embodiments, they will not be repeated here.

[0139] The application further provides a base station 300, referring to FIG. 18 and FIG. 19, which shows a system schematic diagram of an active base station 310 provided by the embodiment of the application, and FIG. 19 shows a system schematic diagram of a passive base station 320 provided by the embodiment of the application. The base station 300 comprises the above antenna system 200. The base station 300 comprises an active base station 310 and a passive base station 320, and the form of the base station 300 comprises at least one of a radio remote unit (RRU) and an active antenna processing unit (AAU), but is not limited thereto.

[0140] In an embodiment, referring to FIG. 18, the base station 300 is an active base station 310, the active base station 310 comprises a baseband unit 301 and a radio frequency unit 302, the radio frequency unit 302 is integrated with the antenna system 200, the baseband unit 301 is configured to modulate a baseband signal, the radio frequency unit 302 is configured to convert the modulated baseband signal to a radio frequency signal, and the antenna system 200 is configured to transmit the radio frequency signal. The active base station 310 is beneficial to reduce the transmission loss of the signal between the radio frequency unit 302 and the antenna system 200.

[0141] In an embodiment, referring to FIG. 19, the base station 300 is a passive base station 320, the passive base station 320 comprises a baseband unit 301 and a radio frequency remote unit 303, the baseband unit 301 is configured to modulate a baseband signal, the radio frequency remote unit 303 is configured to convert the modulated baseband signal to a radio frequency signal, and the antenna system 200 is configured to transmit the radio frequency signal. The passive base station 320 makes the deployment of the base station 300 more flexible and is beneficial to reduce the manufacturing cost of the base station 300.

[0142] It can be understood that the base station 300 in the embodiment has the antenna system 200 in the above-mentioned embodiments, and thus the base station 300 in the embodiment has all the technical effects of the antenna system 200 in the above-mentioned embodiments. Since the technical effects of the antenna system 200 have been fully described in the above-mentioned embodiments, they will not be described here again.

[0143] The application also provides a terminal 400, please refer to Fig. 20, Fig. 20 shows the system schematic diagram of the terminal 400 provided by the embodiment of the application. The terminal 400 comprises a signal processing unit 401 and the antenna array 100 described in any of the above embodiments, the signal processing unit 401 is used for processing signals, and the antenna array 100 is used for transmitting the processed signals. The terminal 400 can be a customer terminal equipment (CPE). The CPE can be, for example, a network device that converts mobile cellular signals, such as signals in LTE, wideband code division multiple access (W-CDMA) or global system for mobile communication (GSM) systems, into wireless fidelity (Wi-Fi) signals or wireless local area network (WLAN) signals. In some embodiments, the CPE can be a fixed wireless access (FAW) device, wherein the FAW is a technology that combines fixed network communication and wireless communication, and can provide broadband access services for users. Alternatively, the terminal can also be a lampsite, which can be used to introduce base station signals indoors to solve the problem of indoor blind area coverage.

[0144] It can be understood that the terminal 400 in the embodiment has the antenna array 100 in the above embodiments, and therefore the terminal 400 in the embodiment has all the technical effects of the antenna array 100 in the above embodiments. Since the technical effects of the antenna array 100 have been fully described in the above embodiments, they will not be described here.

[0145] The above embodiments are only used to illustrate the technical solutions of the application, rather than limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in the protection scope of the application.

Claims

1. An antenna array, characterized in that, include: A ground plane, a transmitting antenna, and a receiving antenna, wherein the transmitting antenna and the receiving antenna are spaced apart and disposed on the same side of the ground plane; At least two first isolators and at least one second isolator are connected to the ground plane, the first isolators and the second isolators are located on opposite sides of the ground plane, and the at least two first isolators are located between the transmitting antenna and the receiving antenna; With the direction from the transmitting antenna to the receiving antenna as the first direction, the extension directions of the first isolator and the second isolator both intersect the first direction, the at least two first isolators are spaced apart in the first direction, and at least one second isolator corresponds to the first isolator in a direction perpendicular to the ground plane.

2. The antenna array according to claim 1, characterized in that, The at least two first isolators are parallel in the first direction, and the distance between two adjacent first isolators is a positive integer multiple of half the wavelength corresponding to the frequency in the transmitting frequency band of the transmitting antenna.

3. The antenna array according to claim 1 or 2, characterized in that, The number of the second isolators is at least two, and the at least two second isolators are parallel in the first direction. The distance between two adjacent second isolators is a positive integer multiple of half the wavelength corresponding to the frequency in the transmitting frequency band of the transmitting antenna.

4. The antenna array according to claim 3, characterized in that, The distance between two adjacent first isolation members is equal to the distance between two adjacent second isolation members.

5. The antenna array according to any one of claims 1 to 4, characterized in that, In a direction perpendicular to the ground plane, the projections of the at least one second isolator on the ground plane are all located between the projections of the transmitting antenna on the ground plane and the projections of the receiving antenna on the ground plane.

6. The antenna array according to any one of claims 1 to 5, characterized in that, The number of the first isolation element and the number of the second isolation element are the same, and the first isolation element and the second isolation element are set in a one-to-one correspondence.

7. The antenna array according to any one of claims 1 to 6, characterized in that, In the first direction, the minimum distance between the at least two first isolators and the transmitting antenna is less than or equal to the minimum distance between the at least two first isolators and the receiving antenna.

8. The antenna array according to any one of claims 1 to 7, characterized in that, On a plane perpendicular to the first direction, the orthographic projections of the at least two first isolators completely cover the orthographic projection of the transmitting antenna.

9. The antenna array according to claim 8, characterized in that, On a plane perpendicular to the first direction, the orthographic projections of the at least two first spacers coincide and their projected areas are equal.

10. The antenna array according to any one of claims 1 to 9, characterized in that, The height at which the at least two first isolators protrude from the ground plane is 1 to 3 times the height at which the transmitting antenna protrudes from the ground plane; and / or, the height at least one second isolator protruding from the ground plane is 0.5 to 3 times the height at which the transmitting antenna protrudes from the ground plane.

11. The antenna array according to any one of claims 1 to 10, characterized in that, The height of the first isolation member protruding from the ground plane is greater than or equal to the height of the second isolation member protruding from the ground plane.

12. The antenna array according to any one of claims 1 to 11, characterized in that, The shape of the at least two first isolation members and the shape of the at least one second isolation member are both flat, and the at least two first isolation members and the at least one second isolation member are all perpendicular to the ground plane.

13. The antenna array according to any one of claims 1 to 12, characterized in that, The antenna array further includes an isolation layer that covers at least two opposing surfaces of two adjacent first isolators.

14. The antenna array according to claim 13, characterized in that, The isolation layer covers the outer surfaces of the two first isolation members closest to the transmitting antenna.

15. The antenna array according to claim 14, characterized in that, The isolation layer covers the outer surfaces of the two second isolators closest to the transmitting antenna, and / or the outer surfaces of the two first isolators closest to the receiving antenna, and / or the outer surfaces of the two second isolators closest to the receiving antenna.

16. The antenna array according to claim 15, characterized in that, The isolation layer covers the outer surfaces of all the first isolation elements and all the second isolation elements.

17. The antenna array according to any one of claims 13 to 16, characterized in that, The isolation layers located on different first isolation members are spaced apart in the first direction.

18. The antenna array according to claim 17, characterized in that, The two isolation layers located on opposite surfaces of the two adjacent first isolation members have the same thickness.

19. The antenna array according to any one of claims 13 to 18, characterized in that, The isolation layer covers the surface of the ground plane between two adjacent first isolation members, and / or the isolation layer covers the surface of the ground plane between two adjacent second isolation members.

20. An antenna system, characterized in that, It includes a power supply network and an antenna array as described in any one of claims 1 to 19, wherein the antenna array and the power supply network are electrically connected.

21. A base station, characterized in that, Includes the antenna system of claim 20.

22. The base station according to claim 21, characterized in that, The base station also includes a baseband unit and a radio frequency (RF) unit. The RF unit is integrated with the antenna system. The baseband unit is used to modulate the baseband signal, the RF unit is used to convert the modulated baseband signal into an RF signal, and the antenna system is used to transmit the RF signal.

23. The base station according to claim 22, characterized in that, The base station also includes a baseband unit and a radio frequency remote unit. The baseband unit is used to modulate the baseband signal, and the radio frequency remote unit is used to convert the modulated baseband signal into a radio frequency signal. The antenna system is used to transmit the radio frequency signal.

24. A terminal, characterized in that, It includes a signal processing unit and an antenna array as described in any one of claims 1 to 19, wherein the signal processing unit is used to process signals and the antenna array is used to transmit the processed signals.

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