Antenna system and communication equipment

Abstract

The invention provides an antenna system and communication equipment, relates to the technical field of communication, and aims to solve the problems of large windward area and the like of the antenna system. The antenna system provided by the invention comprises a first antenna and a second antenna, the first antenna comprises a first radome, a first radiation assembly and a feed network, and the second antenna comprises a second radome and a second radiation assembly; the first antenna housing is provided with a first outer surface, and the first outer surface is provided with a groove; the first radiation assembly is arranged in the groove, and the feed network is arranged in the first antenna housing and is connected with the first radiation assembly; the second antenna housing is provided with a second outer surface, and at least one part of the second outer surface extends into the groove. In the antenna system provided by the invention, the first antenna and the second antenna are two mutually independent antennas, and when the two antennas are combined for use, the thickness size is not obviously increased, so that the windward area is favorably reduced.

Description

[0001] This application is a divisional application. The original application, application number 202111540850.7, was filed on December 16, 2021, and its entire contents are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to an antenna system and communication equipment. Background Technology

[0003] With the development of wireless communication technology, base stations can support an increasing number of communication frequency bands, leading to a greater number of antennas mounted on poles. However, due to the limited space available for antenna mounting on poles, some poles cannot accommodate more antennas. Therefore, effectively integrating different antennas has gradually become a trend. However, current integration methods significantly increase the antenna's windward area, necessitating optimization. Summary of the Invention

[0004] This application provides an antenna system and communication device that can effectively reduce the windward area and is easy to flexibly combine.

[0005] On one hand, this application provides an antenna system including a first antenna and a second antenna. The first antenna includes a first radome, a first radiating component, and a feed network. The second antenna includes a second radome and a second radiating component. The first radome has a first outer surface with a groove. The first radiating component is disposed within the first radome for transmitting or receiving electromagnetic waves. The feed network is connected to the first radiating component to feed a signal to the first radiating component with a certain amplitude and phase. Furthermore, the feed network is disposed within the first radome and located on the side of the groove. Additionally, the second radome has a second outer surface, the second radiating component is disposed within the second radome, and at least a portion of the second outer surface can extend into the groove.

[0006] In the antenna system provided in this application, the first antenna and the second antenna are two independent antennas that can be used independently or combined. When the two antennas are combined, the overall thickness does not increase significantly, thus reducing the windward area and improving safety. Specifically, because the first antenna radome has a groove, and the second outer surface of the second antenna radome can extend into the groove, the overall thickness of the combined first and second antennas is less than the sum of the thicknesses of the first and second antennas, thus reducing the overall thickness of the antenna system. Furthermore, because the feed network is located on the side of the groove, the electromagnetic waves generated by the feed network will not significantly affect the normal operation of the second radiating component in the second antenna, thus ensuring the normal operating performance of the second antenna.

[0007] In one implementation, the first antenna may further include a first frequency selective surface. The first frequency selective surface is located between the first radiating element and the second radiating element, and is used to reflect the signal from the first radiating element and transmit the signal from the second radiating element. Through the first frequency selective surface, electromagnetic waves generated by the first radiating element can propagate in a direction away from the first frequency selective surface. Furthermore, when a portion of the electromagnetic waves propagates to the first frequency selective surface, it can be reflected by the first frequency selective surface, thereby effectively improving the propagation efficiency of the first radiating element. Additionally, electromagnetic waves generated by the second radiating element can effectively propagate through the first frequency selective surface, thus not affecting the normal operating performance of the second radiating element.

[0008] In a specific configuration, the projections of the first radiating component onto the first frequency selection surface can all be located within the first frequency selection surface, thereby enabling the first frequency selection surface to effectively reflect the electromagnetic waves generated by the first radiating component.

[0009] In one implementation, the projection of the power supply network onto the second radiating component can be located outside the second radiating component, thereby effectively preventing the power supply network from causing adverse effects such as obstruction to the electromagnetic waves generated by the second radiating component.

[0010] In one implementation, the first antenna may further include a third radiating component, wherein the operating frequency band of the third radiating component may be different from that of the first radiating component, so as to improve the operating frequency band of the first antenna.

[0011] In a specific configuration, the third radiating component and the first radiating component can be located on the same side of the first frequency selection surface. That is, the first frequency selection surface can reflect the signals of the first radiating component and the third radiating component, so that the electromagnetic waves of the first radiating component and the third radiating component can propagate efficiently in a direction away from the first frequency selection surface.

[0012] In one implementation, the first antenna may further include a second frequency selective surface. The third radiating element and the first radiating element are located on the same side of the second frequency selective surface, which reflects signals from the first and third radiating elements and transmits signals from the second radiating element.

[0013] In specific settings, the types of the first frequency selection surface and the second frequency selection surface can be the same or different, and this application does not limit this.

[0014] In addition, the projection of the third radiating component onto the second frequency selection surface can be located within the second frequency selection surface, thereby enabling it to effectively reflect the electromagnetic waves generated by the third radiating component.

[0015] When specifically configuring the third radiating component, its projection onto the bottom wall of the groove can be located inside the bottom wall. Of course, in other embodiments, the projection of the third radiating component onto the bottom wall of the groove can also be located outside the bottom wall; this application does not limit this to that.

[0016] Furthermore, the operating frequency bands of the first and third radiating components can both be lower than the operating frequency band of the second radiating component. Alternatively, the operating frequency band of the first radiating component can be higher than the operating frequency band of the third radiating component, or vice versa. In specific applications, the operating frequency bands of the first, second, and third radiating components can be reasonably selected according to actual needs; this application does not impose specific limitations in this regard.

[0017] In addition, in the structural arrangement of the first and second radomes, the second outer surface of the second radome can also be fully inserted into the groove.

[0018] Alternatively, when the area of ​​the second outer surface is greater than the area of ​​the bottom wall of the groove, the second outer surface may have a protrusion that can extend into the groove.

[0019] The projection of the second radiating element on the second outer surface can be located within the protrusion to prevent the power supply network located on the side of the groove from causing adverse effects such as obstruction to the second radiating element.

[0020] In addition, the first and second antenna covers can be connected in a detachable manner to facilitate the combination and separation of the first and second antennas.

[0021] On the other hand, this application also provides a communication device, including any of the antenna systems described above. The communication device can be a base station or radar, etc. This application does not limit the specific type of communication device. By equipping the device with the aforementioned antenna system, the number of antenna systems in the base station can be effectively increased, and the windward area of ​​the communication device will not be significantly increased, which is beneficial for large-scale deployment and use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating an application scenario of an antenna system provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a base station antenna feeder system provided in an embodiment of this application; Figure 3 This is a schematic diagram of the composition of an antenna system provided in an embodiment of this application; Figure 4 This is a schematic diagram of the separated structure of an antenna system provided in an embodiment of this application; Figure 5for Figure 4 A schematic diagram of the AA-direction cross-sectional structure; Figure 6 A schematic diagram of a planar structure of a first frequency selection surface provided in an embodiment of this application; Figure 7 This is a cross-sectional structural schematic diagram of another antenna system provided in an embodiment of this application; Figure 8 This is a schematic diagram of the structure of a phase shifter in a power supply network provided in an embodiment of this application; Figure 9 This is a cross-sectional structural schematic diagram of another antenna system provided in an embodiment of this application; Figure 10 This is a cross-sectional structural schematic diagram of another antenna system provided in an embodiment of this application; Figure 11 This is a cross-sectional structural schematic diagram of another antenna system provided in an embodiment of this application; Figure 12 This is a schematic diagram of the structure of a base station provided in an embodiment of this application. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0024] To facilitate understanding of the antenna provided in the embodiments of this application, its application scenarios will be introduced first below.

[0025] The antenna provided in this application embodiment can be used in communication equipment such as base stations and radar to realize wireless communication functions.

[0026] like Figure 1As shown, this application scenario can include base stations and terminals. Wireless communication can be achieved between the base station and the terminal. The base station can be located in a base station subsystem (BBS), a UMTS (Underground Radio Access Network) terrestrial radio access network (UTRAN), or an evolved terrestrial radio access network (E-UTRAN), used for cell coverage of radio signals to enable communication between the terminal device and the wireless network. Specifically, the base station can be a base transceiver station (BTS) in a Global System for Mobile Communication (GSM) or Code Division Multiple Access (CDMA) system, a Node B (NB) in a Wideband Code Division Multiple Access (WCDMA) system, an Evolutionary Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a radio controller in a cloud radio access network (CRAN) scenario. Alternatively, the base station may be a relay station, access point, vehicle-mounted equipment, wearable device, or a g node (gNodeB or gNB) in a new radio (NR) system, or a base station in a future evolved network, etc., and the embodiments of this application are not limited thereto.

[0027] like Figure 2 As shown in the embodiment of this application, a base station includes a base station antenna feeder system. In practical applications, the base station antenna feeder system mainly includes an antenna system 01, a feeder line 02, and a grounding device 03. The antenna system 01 is generally fixed on a mast 04, and the downtilt angle of the antenna system 01 can be adjusted by adjusting the bracket 05 to adjust the signal coverage range of the antenna system 01 to a certain extent.

[0028] Additionally, the base station may include a radio frequency (RF) processing unit 06 and a baseband processing unit 20. For example, the RF processing unit 06 can be used to perform frequency selection, amplification, and down-conversion processing on the signal received by the antenna system 01, converting it into an intermediate frequency (IF) signal or a baseband signal and sending it to the baseband processing unit 20. Alternatively, the RF processing unit 06 can be used to up-convert and amplify the IF signal emitted by the baseband processing unit 20, converting it into a wireless signal through the antenna system 01 and transmitting it. The baseband processing unit 20 can be connected to the feed network of the antenna system 01 via the RF processing unit 06. In some embodiments, the RF processing unit 06 may also be referred to as a remote radio unit (RRU), and the baseband processing unit 20 may also be referred to as a baseband unit (BBU).

[0029] like Figure 2 As shown, in one possible embodiment, the radio frequency processing unit 06 can be integrated with the antenna system 01, while the baseband processing unit 20 is located at the far end of the antenna system 01. The radio frequency processing unit 06 and the baseband processing unit 20 can be connected via a feed line 02. In another embodiment, the radio frequency processing unit 06 and the baseband processing unit 20 can also be located at the far end of the antenna system 01 simultaneously.

[0030] Please refer to the following: Figure 2 and Figure 3 As shown, the antenna system 01 used in a base station may further include an radome 011, a reflector 012 located within the radome 011, and a feed network 013, wherein the reflector 012 may also be referred to as a base plate. The main function of the feed network 013 is to feed the signal to the radiating component 014 with a certain amplitude and phase, or to transmit the wireless signal received by the radiating component 014 to the baseband processing unit 20 of the base station with a certain amplitude and phase. It is understood that, in specific implementations, the feed network 013 may include at least one of the following devices: a phase shifter, a combiner, a transmission or calibration network, or a filter. This application does not limit the components, type, or functions that the feed network 013 can achieve.

[0031] Of course, the antenna system 01 described above can also be applied to various other types of communication devices. This application does not limit the application scenarios of the antenna system 01.

[0032] Regarding the radome 011, in terms of electrical performance, the radome 011 has good electromagnetic wave penetration, thus not affecting the normal transmission and reception of electromagnetic waves between the radiating component 014 and the outside world. In terms of mechanical performance, the radome 011 has good stress resistance and oxidation resistance, thus being able to withstand the corrosion of harsh external environments.

[0033] The radiating element 014, also known as a vibrator, is a basic structural unit of the antenna, capable of effectively transmitting or receiving electromagnetic waves. The radiating element 014 can include multiple vibrators, which can also be arranged into an array. In specific applications, vibrators can be categorized into single-polarized and dual-polarized types. The type of vibrator can be appropriately selected based on actual requirements during configuration.

[0034] Please refer to the following: Figure 2 With the widespread application of 5G technology, the number of operating frequency bands for base station antennas is increasing, and the number of antenna systems 01 installed on the mast 04 is also increasing. However, due to the limited installation space and load-bearing capacity of the mast 04, it is difficult to install more antenna systems 01. In addition, increasing the number of masts 04 would increase the additional costs for operators. Therefore, integrating 5G antenna systems with traditional antenna systems (such as 4G antenna systems) has become a development trend.

[0035] Currently, the main methods for integrating 5G antenna systems with traditional antenna systems include integrating the radiating components of the 5G antenna system into the existing 4G antenna system, or stacking the two different types of radiating components. However, this method significantly increases the overall thickness of the antenna system, thus increasing its windward area and reducing its operational safety. Furthermore, because different types of radiating components are integrated within the same radome, they can only be used simultaneously, not independently or in combination, which has significant limitations and hinders widespread application.

[0036] Therefore, embodiments of this application provide an antenna system that can effectively reduce the windward area of ​​the antenna system and is flexible in use.

[0037] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” and “the” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” means one, two, or more.

[0039] References to "one embodiment" and similar terms used in this specification mean that one or more embodiments of this application include a particular feature, structure, or characteristic described in connection with that embodiment. Therefore, phrases such as "in one embodiment," "in some embodiments," and "in other embodiments" appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically emphasized.

[0040] like Figure 4 and Figure 5 As shown, in one embodiment provided in this application, the antenna system 10 may include two antennas, namely a first antenna 11 and a second antenna 12. The first antenna 11 includes a first radome 111, a first radiating component 112 and a feed network 113, and the second antenna 12 includes a second radome 121 and a second radiating component 122.

[0041] Specifically, such as Figure 5 As shown, the first radome 111 has a first outer surface 1111, and the first outer surface 1111 has a groove 1112. A first radiating component 112 is disposed within the first radome 111 for transmitting or receiving electromagnetic waves. A feed network 113 is connected to the first radiating component 112 so that the feed network 113 feeds a signal to the first radiating component 112 with a certain amplitude and phase. Furthermore, the feed network 113 is disposed within the first radome 111 and located on the side of the groove 1112. Specifically, the second radome 121 has a second outer surface 1211, and the second radiating component 122 is disposed within the second radome 121. The second outer surface 1211 can extend into the interior of the groove 1112. Specifically, the second outer surface 1211 is either fitted to or has a gap with the bottom wall of the groove 1112.

[0042] The antenna system 10 provided in this application may include two independent antennas, which can be used independently or combined. When the two antennas are used in combination, the outer surface 1211 of the second antenna 12 can fit against the bottom wall of the groove 1112 of the first antenna 11, or even with a small gap, the thickness of the combined antennas will not be significantly increased. Therefore, this helps to reduce the windward area and improve safety. Specifically, since the first antenna cover 111 has a groove 1112, and the second outer surface 1211 of the second antenna cover 121 can extend into the groove 1112 and fit against the bottom wall of the groove 1112 or have a gap, the overall thickness of the combined antenna system 10 is less than the sum of the thicknesses of the first antenna 11 and the second antenna 12. This helps to reduce the overall thickness of the antenna system 10. In addition, since the power supply network 113 is located on the side of the groove 1112, the influence of the power supply network 113 on the second radiation component 122 in the second antenna 12 is reduced, which is beneficial to ensuring the normal operation performance of the second antenna 12.

[0043] Specifically, such as Figure 5 As shown, in the first antenna 11, the thickness of the first antenna cover 111 is H1, and the depth of the groove 1112 is H3.

[0044] In the second antenna 12, the thickness of the second antenna cover 121 is H2.

[0045] In the entire antenna system 10, after combining the first antenna 11 and the second antenna 12, a portion of the second antenna 12 extends into the groove 1112. That is, the thickness of the antenna system 10 is H1 + H2 - H3, which is less than the sum of the thicknesses of the first radome 111 and the second radome 121, H1 + H2. Therefore, through the structural design of the groove 1112, the thickness of the entire antenna system 10 can be effectively reduced, thereby reducing the windward area of ​​the antenna system 10.

[0046] In addition, such as Figure 5As shown, in the embodiment provided in this application, the feed network 113 is disposed on both sides of the groove 1112. Therefore, the first radome 111 can provide sufficient installation space for the feed network 113. Furthermore, since the feed network 113 is disposed on both sides of the groove 1112, when the second antenna 12 extends into the groove 1112, the projection of the second antenna 12 on the first outer surface 1111 does not coincide with the feed network 113. Alternatively, the projection of the feed network 113 on the first outer surface 1111 is located outside the groove 1112. Therefore, it is possible to effectively avoid the feed network 113 obstructing or blocking the electromagnetic waves emitted by the second radiating component 122, thus helping to ensure the signal transmission and reception performance of the second antenna 12.

[0047] In practical applications, the radiation direction of the first antenna 11 and the radiation direction of the second antenna 12 can be approximately the same.

[0048] For example, such as Figure 5 As shown, in one embodiment provided in this application, the radiation direction of the first antenna 11 is away from the first outer surface 1111. That is, from... Figure 5 From the perspective of the first antenna 11, its radiation direction is upward. Furthermore, the radiation direction of the second antenna 12 is towards the second outer surface 1211. That is, from... Figure 5 From the perspective of the second antenna 12, the radiation direction is also upward. The electromagnetic waves generated by the second radiating component 122 in the second antenna 12 can propagate through the first antenna 11.

[0049] It is understood that in other embodiments, the radiation directions of the first antenna 11 and the second antenna 12 may be different, and this application does not limit this.

[0050] In addition, such as Figure 5 As shown in the example provided in this application, the radiation directions of the first antenna 11 and the second antenna 12 are approximately the same, that is, the radiation directions of the first antenna 11 and the second antenna 12 are both upward.

[0051] like Figure 5 As shown, in one embodiment provided in this application, the first antenna 11 further includes a first frequency selective surface 114 (FSS), which is located between the first radiating component 112 and the second radiating component 122. The FSS reflects the signal from the first radiating component 112 and transmits the signal from the second radiating component 122. The FSS is essentially a spatial filter, exhibiting distinct bandpass or bandstop filtering characteristics when interacting with electromagnetic waves. The FSS can effectively reflect electromagnetic waves in some frequency bands and effectively transmit electromagnetic waves in other frequency bands.

[0052] Electromagnetic waves generated by the first radiating component 112 can propagate in a direction away from the first frequency selective surface 114 via the first frequency selective surface 114. Furthermore, when a portion of the electromagnetic waves propagate to the first frequency selective surface 114, they can be reflected by it, thereby effectively improving the propagation efficiency of the first radiating component 112. Additionally, electromagnetic waves generated by the second radiating component 122 can effectively propagate through the first frequency selective surface 114 without affecting the normal operating performance of the second radiating component 122.

[0053] In practical applications, the projection of the first radiating component 112 onto the first frequency selection surface 114 can all be located within the first frequency selection surface 114, thereby enabling the first frequency selection surface 114 to effectively reflect the electromagnetic waves generated by the first radiating component 112.

[0054] Of course, in other embodiments, the projection of the first radiating component 112 on the first frequency selection surface 114 may not be completely located within the first frequency selection surface 114, and this application does not specifically limit this.

[0055] In practical applications, the first frequency selection surface 114 can be a patch type (or a media type).

[0056] like Figure 6 As shown, in one embodiment provided in this application, the first frequency selection surface 114 may include a dielectric substrate 1141 and a metal sheet 1142 located on the dielectric substrate 1141, with a plurality of metal sheets 1142 spaced apart.

[0057] In specific configurations, the number, size, and spacing of the metal sheets 1142 can be adjusted reasonably according to actual conditions. Furthermore, the material of the metal sheets 1142 can be copper, aluminum, or other materials with good conductivity; this application does not impose specific limitations on this.

[0058] In addition, in other embodiments, the first frequency selection surface 114 may also be a slotted type (or waveguide type), etc. This application does not limit the specific type of the first frequency selection surface 114.

[0059] In addition, such as Figure 5 As shown, in specific applications, the first radiating component 112 may include one vibrator, or it may include two or more vibrators. When the first radiating component 112 includes multiple vibrators, the multiple vibrators may be located approximately on the same plane, or the multiple vibrators may be located on different planes. This application does not impose any limitations on this. In addition, the first antenna 11 may be an active antenna or a passive antenna, and this application does not impose any limitations on the specific type of the first antenna 11.

[0060] Accordingly, the second radiating element 122 may include one element, or it may include two or more elements. When the second radiating element 122 includes multiple elements, the multiple elements may be located approximately in the same plane, or the multiple elements may be located in different planes. This application does not impose any limitations on this. In addition, the second antenna 12 may be an active antenna or a passive antenna, and this application does not impose any limitations on the specific type of the second antenna 12.

[0061] The operating frequency band of the first radiating component 112 can be lower than that of the second radiating component 122. For example, the radiating frequency band of the first radiating component 112 can be 690-960MHz, and the operating frequency band of the second radiating component 122 can be 1710-2180MHz, meaning the operating frequency band of the second radiating component 122 can be higher than that of the first radiating component 112. Furthermore, in specific applications, the first frequency selective surface 114 can be of the type that blocks low frequencies and passes high frequencies. For example, the frequency band of electromagnetic waves blocked (or reflected) by the first frequency selective surface 114 can include 690-960MHz, and the frequency band of electromagnetic waves transmitted by the first frequency selective surface 114 can include 1710-2180MHz.

[0062] Of course, in specific applications, the operating frequency band of the first radiating component 112 can also be greater than that of the second radiating component 122. Meanwhile, the first frequency selection surface 114 can be of the type that blocks high frequencies and passes low frequencies, which will not be elaborated upon here.

[0063] In addition, such as Figure 7 As shown, in another embodiment provided in this application, the first antenna 11 may further include a third radiating component 115, wherein the operating frequency band of the third radiating component 115 may be different from the operating frequency band of the first radiating component 112, thereby effectively improving the operating frequency band range of the first antenna 11.

[0064] Please refer to the following: Figure 7 and Figure 8 The power supply network 113 may include multiple phase shifters, of which a portion of the phase shifters 113a may be connected to the first radiating component 112 for adjusting the phase of the first radiating component 112. Another portion of the phase shifters 113b may be connected to the third radiating component 115 for adjusting the phase of the third radiating component 115.

[0065] Of course, in specific applications, the power supply network 113 may also include a combiner, a transmission or calibration network or a filter, etc., and the first radiation component 112 and the third radiation component 115 may be connected to the corresponding combiner, transmission or calibration network or filter, etc., so that the first radiation component 112 and the third radiation component 115 may be adjusted accordingly.

[0066] In a specific configuration, the first radiating component 112 and the third radiating component 115 can be stacked, thereby effectively reducing the width of the first radome 111 and thus reducing the windward area. Of course, in other embodiments, the first radiating component 112 and the third radiating component 115 can also be arranged on the same plane, and this application does not limit this.

[0067] Furthermore, the first radiating component 112 and the third radiating component 115 can be disposed on the same side of the first frequency selective surface 114. The first frequency selective surface 114 can effectively reflect the electromagnetic waves generated by the first radiating component 112 and the third radiating component 115, thereby effectively improving the working performance of the first radiating component 112 and the third radiating component 115.

[0068] The projection of the third radiating component 115 onto the first frequency selection surface 114 can be located within the first frequency selection surface 114, thereby enabling it to effectively reflect the electromagnetic waves generated by the third radiating component 115.

[0069] Of course, in another embodiment, an additional frequency selective surface may be provided in the first antenna 11 to effectively reflect the electromagnetic waves generated by the third radiating component 115.

[0070] For example, such as Figure 9 As shown, in one example provided in this application, the first antenna 11 may further include a second frequency selective surface 116, wherein the second frequency selective surface 116 is used to reflect electromagnetic waves of the third radiating component 115 and transmit electromagnetic waves of the second radiating component 122.

[0071] In practical applications, the projection of the third radiating component 115 onto the second frequency selection surface 116 can be located within the second frequency selection surface 116, thereby enabling it to effectively reflect the electromagnetic waves generated by the third radiating component 115.

[0072] In addition, in some implementations, the second frequency selection surface 116 can also effectively reflect the electromagnetic waves generated by the first radiating component 112.

[0073] Specifically, the first radiating component 112 and the third radiating component 115 can be located on the same side of the second frequency selection surface 116. Figure 9 (The upper side of the middle). The second frequency selection surface 116 can effectively reflect the electromagnetic waves generated by the first radiation component 112 and the third radiation component 115, thereby effectively improving the working performance of the first radiation component 112 and the third radiation component 115.

[0074] The projection of the first radiating component 112 onto the second frequency selection surface 116 can be located within the second frequency selection surface 116, thereby enabling it to effectively reflect the electromagnetic waves generated by the first radiating component 112.

[0075] It is understood that when the first antenna 11 includes both a first frequency selection surface 114 and a second frequency selection surface 116, the first frequency selection surface 114 may be located above the second frequency selection surface 116, or the second frequency selection surface 116 may be located above the first frequency selection surface 114. This application does not limit this.

[0076] In addition, in specific applications, the location of the power supply network 113 or the location of the groove 1112 can be varied.

[0077] For example, such as Figure 5 As shown, in one example provided in this application, the groove 1112 is located in the middle of the first outer surface 1111, and both ends of the groove 1112 extend through the edge of the first radome 111. The feed network 113 is located on both sides of the groove 1112.

[0078] like Figure 10 As shown, in another example provided in this application, the groove 1112 may be located at the edge of the first outer surface 1111, and the power supply network 113 may be located on one side of the groove 1112.

[0079] This application does not specifically limit the shape and location of the groove 1112.

[0080] In addition, when setting the second antenna 12, the shape of the second antenna cover 121 can be varied.

[0081] For example, such as Figure 10 As shown in one example provided in this application, the second outer surface 1211 of the second antenna cover 121 is planar, and the width of the second outer surface 1211 is not greater than the width of the groove 1112 (the dimension in the left-right direction in the figure), so that the second outer surface 1211 can be completely inserted into the groove 1112. In addition, a heat dissipation fin 1210 can be provided on one side of the second antenna cover 121, that is, the side opposite to the second outer surface 1211, to improve the heat dissipation performance of the second antenna 12.

[0082] Or, such as Figure 11As shown, in another example provided in this application, the second outer surface 1211 has a protrusion 123. Specifically, the overall width of the second outer surface (not shown in the figure) may be greater than the width of the groove 1112. The width of the protrusion 123 is not greater than the width of the groove 1112, so that the protrusion 123 can extend into the groove 1112.

[0083] In practical applications, in order to prevent the power supply network 113 from causing adverse effects such as obstruction to the second radiation component 122, the projection of the second radiation component 122 on the second outer surface can be located inside the protrusion 123.

[0084] The width of the second outer surface may be less than or equal to the width of the first outer surface (not shown in the figure). Alternatively, the width of the second outer surface may be greater than the width of the first outer surface; this application does not specifically limit this.

[0085] In other embodiments, the top surface of the protrusion 123 may be omitted. When the protrusion 123 extends into the groove 1112, the bottom wall of the groove 1112 can seal and fit the second antenna radome 121, ensuring its airtightness. Alternatively, it can be understood that the first antenna radome 111 and the second antenna radome 121 can share a portion of the radome structure to ensure the airtightness of the entire antenna system 10. This also effectively reduces the amount of material used in the radome, thus reducing the weight of the antenna system 10.

[0086] Alternatively, in another embodiment, the bottom wall of the groove 1112 can be omitted. When the protrusion 123 extends into the groove 1112, the protrusion 123 can fit tightly against the side wall of the groove 1112 to ensure the airtightness of the first radome 111. Alternatively, it can be understood that the first radome 111 and the second radome 121 can share a portion of the radome structure to ensure the airtightness of the entire antenna system 10, while also effectively reducing the amount of material used in the radome, which is beneficial for reducing the weight of the antenna system 10.

[0087] When connecting the first radome 111 and the second radome 121, a fixed connection can be achieved by welding or bonding.

[0088] Alternatively, the first antenna cover 111 and the second antenna cover 121 can be fixedly connected using a connection structure that facilitates disassembly, such as clips or screws, to achieve a detachable connection. When the first antenna 11 and the second antenna 12 need to be used together, the first antenna cover 111 and the second antenna cover 121 can be easily fixedly connected. When the first antenna 11 and the second antenna 12 need to be used independently, the first antenna cover 111 and the second antenna cover 121 can be easily separated, thereby improving the convenience of installation and disassembly.

[0089] In practical applications, the antenna system 10 described above can be used in various types of communication devices to achieve wireless communication functions.

[0090] For example, such as Figure 12 As shown, taking a communication device as a base station as an example, the base station may include a mast 04 and an adjustment bracket 05. The antenna system 10 can be fixedly mounted on the mast 04 via the adjustment bracket 05.

[0091] Specifically, a structure for connecting to the adjustment bracket 05 can be provided on the back of the second radome 121. After the first radome 111 and the second radome 121 are fixedly connected, the entire antenna system 10 can be fixed to the mast via the adjustment bracket 05. Alternatively, it can be understood that the first antenna 11 can be connected to the adjustment bracket 05 via the second antenna 12.

[0092] In some embodiments, the first antenna cover 111 may be fixedly connected to the adjustment bracket 05. Alternatively, it can be understood that the second antenna 12 can be connected to the adjustment bracket 05 through the first antenna 11.

[0093] Alternatively, the first radome 111 and the second radome 121 may both be fixedly connected to the adjustment bracket 05, and this application does not limit this.

[0094] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An antenna system, characterized in that, Including the first antenna and the second antenna; The first antenna includes: A first radome has a first outer surface, and the first outer surface has a groove; The first radiating component is disposed inside the first antenna radome; A power supply network is connected to the first radiating component; the power supply network is disposed inside the first radome and is located on the side of the groove; The second antenna includes: The second radome has a second outer surface; At least one portion of the second outer surface extends into the groove.

2. The antenna system according to claim 1, characterized in that, The second antenna also includes a second radiating component, which is disposed inside the second antenna radome.

3. The antenna system according to claim 2, characterized in that, The second antenna also includes a reflector, and the first radiating component and the second radiating component are both located on the same side of the reflector.

4. The antenna system according to any one of claims 1 to 3, characterized in that, The first antenna further includes a first frequency selective surface located between the first radiating component and the second radiating component, for reflecting the signal of the first radiating component and transmitting the signal of the second radiating component.

5. The antenna system according to any one of claims 1 to 4, characterized in that, The projection of the power supply network onto the second radiating component is located outside the second radiating component.

6. The antenna system according to claim 4 or 5, characterized in that, The first antenna further includes a third radiating component, which is connected to the feed network, and the third radiating component and the first radiating component are located on the same side of the first frequency selection surface; The first radiating component and the third radiating component operate in different frequency bands.

7. The antenna system according to claim 6, characterized in that, The first antenna further includes a second frequency selective surface, and the third radiating component and the first radiating component are located on the same side of the second frequency selective surface. The second frequency selective surface is used to reflect the signals of the first radiating component and the third radiating component, and to transmit the signal of the second radiating component.

8. The antenna system according to claim 7, characterized in that, The projection of the third radiating component onto the second frequency selection surface is located within the second frequency selection surface.

9. The antenna system according to any one of claims 6 to 8, characterized in that, The projection of the third radiating component onto the bottom wall of the groove is located within the bottom wall.

10. The antenna system according to any one of claims 1 to 9, characterized in that, The second outer surface is in contact with the bottom wall of the groove.

11. The antenna system according to any one of claims 1 to 10, characterized in that, The second outer surface has a protrusion that extends into the groove and fits against the bottom wall of the groove.

12. The antenna system according to claim 11, characterized in that, The projection of the second radiating component onto the second outer surface is located within the protrusion.

13. A first antenna, characterized in that, include: A first radome has a first outer surface, and the first outer surface has a groove; The first radiating component is disposed inside the first antenna radome; A power supply network is connected to the first radiating component; the power supply network is disposed inside the first radome and is located on the side of the groove.

14. The first antenna according to claim 13, characterized in that, The side of the groove is at least one side in the width direction of the first radome.

15. The first antenna according to claim 14, characterized in that, The sides of the groove are the two sides in the width direction of the first radome.

16. The first antenna according to claim 15, characterized in that, In the width direction of the first radome, the groove is located at the center of the first outer surface.

17. The first antenna according to claim 14, characterized in that, The side of the groove is one side of the width direction of the first radome; In the width direction of the first radome, the groove is located at the edge of the first outer surface.

18. The first antenna according to any one of claims 13 to 17, characterized in that, The groove extends through the first radome along its length.

19. The first antenna according to any one of claims 13 to 18, characterized in that, The power supply network includes a phase shifter connected to the first radiating component for adjusting the phase of the first radiating component.

20. The first antenna according to any one of claims 13 to 19, characterized in that, The projection of the phase shifter onto the second radiating component is located outside the second radiating component.

21. The first antenna according to any one of claims 13 to 20, characterized in that, The groove is used to accommodate at least one portion of the second antenna.

22. The first antenna according to any one of claims 13 to 21, characterized in that, The first antenna further includes a first frequency selective surface located between the first radiating component and the first outer surface, for reflecting the signal of the first radiating component.

23. The first antenna according to claim 22, characterized in that, The first frequency selection surface includes a dielectric substrate and a plurality of metal sheets located on the dielectric substrate, the plurality of metal sheets being spaced apart.

24. The first antenna according to claim 22 or 23, characterized in that, The projection of the first radiating component onto the first frequency selection surface lies within the first frequency selection surface.

25. The first antenna according to any one of claims 22 to 24, characterized in that, The first antenna includes a third radiating component; The third radiating component is connected to the feed network, and the third radiating component and the first radiating component are located on the same side of the first frequency selection surface; The first radiating component and the third radiating component operate in different frequency bands.

26. The first antenna according to claim 25, characterized in that, The first antenna further includes a second frequency selective surface, and the third radiating component and the first radiating component are located on the same side of the second frequency selective surface. The second frequency selective surface is used to reflect the signals of the first radiating component and the third radiating component.

27. The first antenna according to claim 26, characterized in that, The projection of the third radiating component onto the second frequency selection surface is located within the second frequency selection surface.

28. The first antenna according to any one of claims 25 to 27, characterized in that, The projection of the third radiating component onto the bottom wall of the groove is located within the bottom wall.

29. The first antenna according to any one of claims 25 to 28, characterized in that, The power supply network includes multiple phase shifters, some of which are connected to the first radiating component to adjust the phase of the first radiating component, and other phase shifters are connected to the third radiating component to adjust the phase of the third radiating component.

30. A communication device, characterized in that, It includes at least one antenna system as claimed in any one of claims 1 to 12, or a first antenna as claimed in any one of claims 13 to 29.

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