Signal transceiver device, feeding structure and antenna

Abstract

Embodiments of the present application disclose a signal transceiver device, a feeding structure, and an antenna. The signal transceiver device includes: a first cavity provided with a first interface thereon; a first filter circuit disposed in the first cavity, with a first end of the first filter circuit connected to the first interface; a second cavity provided with a second interface and a third interface; a second filter circuit disposed in the second cavity, with a first end of the second filter circuit connected to the second interface; a connecting component including opposite first, second, and third ends; the first end of the connecting component is connected to a second end of the first filter circuit, the third end of the connecting component is connected to a second end of the second filter circuit, and the second end of the connecting component is connected to the third interface; the connecting component is used for transmitting signals in a first frequency band and a second frequency band. The connecting component adopts an integrated structure, reducing assembly tolerances and improving the passive intermodulation performance of the signal transceiver device.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communication technologies, and in particular, to a signal transceiver device, a feeding structure, and an antenna. Background Art

[0002] A signal transceiver device, such as a combiner, is an important component of a base station antenna. Its function is to combine two or more radio frequency signals emitted from different transmitters into one path and send it to the radio frequency device for antenna transmission, while avoiding mutual influence between signals at each port.

[0003] A signal transceiver device usually includes multiple cavities, and a section of filter circuit is provided in each cavity, such as Figure 1 、 Figure 2 、 Figure 3 As shown, the signal transceiver device further includes: a connector 01, and this connector 01 is used to connect the filter circuits in adjacent cavities.

[0004] However, the assembly tolerance of the connector is relatively large, which easily affects the passive intermodulation (PIM) performance of the signal transceiver device. Summary of the Invention

[0005] Embodiments of the present application provide a signal transceiver device, a feeding structure, and an antenna, which solve the problem of poor passive intermodulation performance of the signal transceiver device.

[0006] To achieve the above object, the present application adopts the following technical solutions:

[0007] In the first aspect of the present application, a signal transceiver device is provided, including: a first cavity with a first interface provided thereon; a first filtering circuit disposed in the first cavity, the first filtering circuit including opposite first and second ends, the first end of the first filtering circuit being connected to the first interface, and the first filtering circuit being configured to transmit signals in a first frequency band; a second cavity with a second interface and a third interface provided thereon, the first filtering circuit and the second filtering circuit being parallel; a second filtering circuit disposed in the second cavity, the second filtering circuit including opposite first and second ends, the first end of the second filtering circuit being connected to the second interface, and the second filtering circuit being configured to transmit signals in a second frequency band; a connecting component including opposite first and second ends, and a third end located between the first end and the second end of the connecting component; wherein, the first end of the connecting component is located in the first cavity and is connected to the second end of the first filtering circuit, the third end of the connecting component is located in the second cavity and is connected to the second end of the second filtering circuit, and the second end of the connecting component is connected to the third interface; wherein, the connecting component adopts an integrated structure, and the connecting component is configured to transmit signals in the first frequency band and the second frequency band. Thus, the connecting component adopts an integrated structure, compared with the prior art in which filtering circuits in different cavities are connected through multiple connecting structures, the assembly tolerance is reduced, and the passive intermodulation performance of the signal transceiver device is improved.

[0008] In an optional implementation manner, the signal transceiver device further includes: a first printed circuit board (PCB), the first filtering circuit being disposed on the first PCB, a first card slot being provided in the first cavity, and the first PCB being detachably connected to the first card slot; a second PCB, the second filtering circuit being disposed on the second PCB, a second card slot being provided in the second cavity, and the second PCB being detachably connected to the second card slot. Thus, the assembly method is simpler and the assembly difficulty is reduced.

[0009] In an optional implementation manner, a first opening is provided on the first cavity, the first opening being adapted to the shape of the first PCB, such that the first PCB can be snap-fitted with the first card slot through the first opening; a second opening is provided on the second cavity, the second opening being adapted to the shape of the second PCB, such that the second PCB can be snap-fitted with the second card slot through the second opening. Thus, the first cavity and the second cavity can be formed separately and then the first PCB can be installed through the first opening and the second PCB can be installed through the second opening, reducing the assembly difficulty.

[0010] In an alternative implementation, a first welding interface is provided on the first cavity, and the first welding interface is located above the first end of the connecting component, so as to weld the first end of the connecting component and the second end of the first filtering circuit through the first welding interface; a second welding interface is provided on the second cavity, and the second welding interface is located above the third end of the connecting component, so as to weld the third end of the connecting component and the second end of the second filtering circuit through the second welding interface. Thus, after the first cavity and the second cavity are respectively formed, the connecting component and the first filtering circuit can be welded through the first welding interface, and the connecting component and the second filtering circuit can be welded through the second welding interface, reducing the assembly difficulty.

[0011] In an alternative implementation, a third opening is provided on the first cavity or the second cavity, and the third opening is adapted to the shape of the connecting component, so that the connecting component can enter the first cavity and the second cavity through the third opening. Thus, after the first cavity and the second cavity are respectively formed, the connecting component can be installed through the third opening, reducing the assembly difficulty.

[0012] In an alternative implementation, the signal transceiver further includes: a third cavity, wherein the third cavity is located between the first cavity and the second cavity, and a fourth interface is provided on the third cavity; a third filtering circuit, the third filtering circuit is disposed in the third cavity, the third filtering circuit includes opposite first and second ends, the first end of the third filtering circuit is connected to the third interface, the second end of the third filtering circuit is connected to the fourth end of the connecting component, and the third filtering circuit is used for transmitting signals in a third frequency band; wherein, the fourth end of the connecting component is located between the first end and the third end of the connecting component, and the connecting component is further used for transmitting the signals in the third frequency band. Thus, the connecting component can connect multiple filtering circuits at the same time, combine multiple incoming signals into one path, or divide one signal into multiple paths. At the same time, the connecting component adopts an integrated structure, reducing the assembly tolerance and improving the passive intermodulation performance of the signal transceiver.

[0013] In an alternative implementation, the signal transceiver further includes: a third PCB, the third filtering circuit is disposed on the third PCB, a third card slot is provided in the third cavity, and the third PCB is detachably connected to the third card slot; a fourth opening is provided on the third cavity, and the fourth opening is adapted to the shape of the third PCB. Thus, after the third cavity is formed, the third PCB can be installed through the fourth opening, reducing the assembly difficulty.

[0014] In an alternative implementation, a third welding interface is provided on the third cavity, and the third welding interface is located above the fourth end of the connection component, so as to weld the fourth end of the connection component and the second end of the third filter circuit through the third welding interface. Thus, after the third cavity is formed, the connection component and the third filter circuit can be welded through the third welding interface, reducing the assembly difficulty.

[0015] In an alternative implementation, the first interface, the second interface, and the fourth interface are used to connect to a signal input end, and the third interface is used to connect to a signal output end; or, the first interface, the second interface, and the fourth interface are used to connect to a signal output end, and the third interface is used to connect to a signal input end. Thus, the signal transceiver device can combine multiple signals into one through the connection component, or divide one signal into multiple signals, with a wider range of uses.

[0016] In an alternative implementation, the first filter circuit, the second filter circuit, and the third filter circuit each include: a main transmission line, and a plurality of open-circuit filter stubs connected to the main transmission line. Thus, the passband signal can be transmitted through the main transmission line.

[0017] In an alternative implementation, the length of the open-circuit filter stub is where λ1 is the wavelength corresponding to the stopband signal frequency band. Thus, the open-circuit filter stub can act as a resonator, generating resonance in the stopband frequency band, and the stopband signal can only be transmitted back and forth on the open-circuit filter stub, filtering out the stopband signal.

[0018] In an alternative implementation, the connection component includes at least one transmission line segment with impedance transformation, and the length of the transmission line segment with impedance transformation is greater than where λ2 is the wavelength corresponding to the highest frequency in the input signal. Thus, the transmission line segment with impedance transformation can perform impedance matching on signals of different frequency bands, enabling the connection component to transmit signals of different frequency bands simultaneously.

[0019] In the second aspect of the present application, a feeding structure is further provided, including: a phase shifter and the signal transceiver device as described above, and the phase shifter is electrically connected to the signal transceiver device. Thus, the feeding structure adopting the above signal transceiver device can reduce the assembly tolerance and improve the passive intermodulation performance of the system.

[0020] In the second aspect of the present application, an antenna is further provided, including: at least one antenna array, and the antenna array includes: at least one radiation unit, a reflector, and the feeding structure as described above; the radiation unit is arranged above the reflector, and the feeding structure is connected to the radiation unit. Thus, the antenna adopting the above feeding structure has the same effect as the above feeding structure, which will not be elaborated here.

[0021] In an alternative implementation, the antenna further includes: a radome, and the radiation unit, the reflector, and the feeding structure are located in a cavity surrounded by the radome. Thus, the radome can reduce the impact of the external environment on the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a schematic structural diagram of a signal transceiver device;

[0023] Figure 2 is Figure 1 a disassembled structural diagram of the signal transceiver device in ;

[0024] Figure 3 FIG. is a schematic structural diagram of a connecting member;

[0025] Figure 4 FIG. is a schematic structural diagram of another signal transceiver device;

[0026] Figure 5 is Figure 4 a disassembled structural diagram of the signal transceiver device in ;

[0027] Figure 6 FIG. is a schematic structural diagram of a signal transceiver device provided by an embodiment of the present application;

[0028] Figure 7 is Figure 6 a disassembled structural diagram of the signal transceiver device in ;

[0029] Figure 8 FIG. is a schematic structural diagram of another signal transceiver device provided by an embodiment of the present application;

[0030] Figure 9 is Figure 8 a disassembled structural diagram of the signal transceiver device in ;

[0031] Figure 10 is Figure 8 a top view of the signal transceiver device in ;

[0032] Figure 11 is Figure 8 a schematic structural diagram of the connecting component in ;

[0033] Figure 12 FIG. is a schematic structural diagram of a feeding structure provided by an embodiment of the present application;

[0034] Figure 13 FIG. is a disassembled structural diagram of a feeding structure provided by an embodiment of the present application;

[0035] Figure 14 is Figure 13 a top view of the feeding structure in ;

[0036] Figure 15 is Figure 13 The top view of the middle phase shifter;

[0037] Figure 16 is Figure 13 The top view of the middle signal transceiver device;

[0038] Figure 17 is Figure 13 The sectional view of the middle feeding structure;

[0039] Figure 18 The disassembled structure schematic diagram of another feeding structure provided by the embodiment of the present application;

[0040] Figure 19 is Figure 18 The top view of the middle feeding structure;

[0041] Figure 20 is Figure 18 The sectional view of the middle feeding structure;

[0042] Figure 21 The structure schematic diagram of an antenna provided by the embodiment of the present application;

[0043] Figure 22 The structure schematic diagram of a base station antenna feeder system provided by the embodiment of the present application. Detailed implementation manners

[0044] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings.

[0045] Hereinafter, terms such as "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0046] In addition, in the present application, orientation terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the drawings. It should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and they may change accordingly with the change of the orientation of the components placed in the drawings.

[0047] Hereinafter, the terms that may appear in the embodiments of the present application will be explained.

[0048] Insertion Loss: The loss of load power that occurs at a certain point in a transmission system due to the insertion of a component or device, which is expressed as the ratio in decibels of the power received by the load before the insertion of the component or device to the power received by the same load after the insertion.

[0049] Passive Intermodulation (PIM): It refers to the generation of spurious signals when two or more frequencies are mixed together in a non - linear device.

[0050] An embodiment of the present application provides a signal transceiver device, and the signal transceiver device includes two or more cavities. As Figure 4 shown, the signal transceiver device 101 includes: a first cavity 102, a second cavity 104, and a third cavity 103.

[0051] A first filter circuit 105 is provided in the first cavity 102, a second filter circuit 107 is provided in the second cavity 104, and a third filter circuit 106 is provided in the third cavity 103.

[0052] The signal transceiver device 101 further includes: a connection component 108, the connection component 108 includes opposite first and second ends, and a third end and a fourth end located between the first end and the second end of the connection component 108.

[0053] The first end of the connection component 108 is located in the first cavity 102, and the first end of the connection component 108 is connected to the second end of the first filter circuit 105. The third end of the connection component 108 is located in the second cavity 104, and the third end of the connection component 108 is connected to the second end of the second filter circuit 107. The fourth end of the connection component 108 is located in the third cavity 106, the fourth end of the connection component 108 is connected to the second end of the third filter circuit 106, and the second end of the connection component 108 is connected to an interface on the second cavity.

[0054] In some embodiments of the present application, the connection component 108, the first filter circuit 105, the second filter circuit 107, and the third filter circuit 106 are integrally formed, and the connection component 108, the first filter circuit 105, the second filter circuit 107, and the third filter circuit 106 are all disposed on a Printed Circuit Board (PCB), and the connection component 108 crosses three inner cavities.

[0055] As Figure 5As shown, the signal transceiver device 101 includes: a base 001 and a cover plate 002. During assembly, first assemble the connection component 108, the first filter circuit 105, the second filter circuit 107, and the third filter circuit 106 onto the PCB, and then install the assembled PCB on the base 001. Finally, weld the cover plate 002 to the base 001.

[0056] However, the above assembly method is likely to affect the passive intermodulation (PIM) performance of the signal transceiver device 101, has high requirements for the assembly process, increases the assembly difficulty, and is difficult to repair.

[0057] For this reason, the embodiments of the present application provide an improved signal transceiver device 101.

[0058] In some embodiments of the present application, as Figure 6 、 Figure 7 shown, the signal transceiver device 101 includes: a first cavity 102 and a second cavity 104.

[0059] The first cavity 102 is provided with a first filter circuit 105, and a first interface 1021 is provided on the first cavity 102.

[0060] The first filter circuit 105 includes opposite first and second ends. The first end of the first filter circuit 105 is connected to the first interface 1021, and the first filter circuit 105 transmits signals in a first frequency band.

[0061] The second cavity 104 is provided with a second filter circuit 107, and a second interface 1041 is provided on the second cavity 104. A third interface 1024 is provided on the first cavity 102, and the first filter circuit 105 and the second filter circuit 107 are parallel.

[0062] It should be noted that the above parallelism is not parallel in the strict mathematical sense, and there may be errors. If the error is less than a preset threshold, it is considered parallel.

[0063] It should be noted that in some other embodiments of the present application, it further includes: the third interface 1024 may be provided on the second cavity 104, for example.

[0064] The second filter circuit 107 includes opposite first and second ends. The first end of the second filter circuit 107 is connected to the second interface 1041, and the second filter circuit 107 is used to transmit signals in a second frequency band.

[0065] The signal transceiver device 101 further includes: a connection component 108, the connection component 108 includes opposite first and second ends, and a third end located between the first end and the second end of the connection component 108.

[0066] The first end of the connection component 108 is located in the first cavity 102, and the first end of the connection component 108 is connected to the second end of the first filter circuit 105. The third end of the connection component 108 is located in the second cavity 104, and the third end of the connection component 108 is connected to the second end of the second filter circuit 107. The second end of the connection component 108 is connected to the third interface 1024.

[0067] The connection component 108 is used to transmit signals in the first frequency band and the second frequency band.

[0068] In use, the connection component 108 can combine multiple signals into one output, or divide one signal into multiple outputs.

[0069] In some embodiments, the first interface 1021 and the second interface 1041 are used to connect to a signal input end, and the third interface 1024 is used to connect to a signal output end.

[0070] During operation, the first interface 1021 can be used to receive a signal in the first frequency band and transmit the received signal in the first frequency band to the first filter circuit 105. The first filter circuit 105 can transmit the signal to the connection component 108. The second interface 1041 can be used to receive a signal in the second frequency band and transmit the received signal in the second frequency band to the second filter circuit 107, and then the second filter circuit 107 transmits the signal to the connection component 108.

[0071] In this embodiment, the connection component 108 can combine the signals in the first frequency band and the second frequency band into one path, transmit them to the third interface 1024, and the third interface 1024 outputs the combined signal.

[0072] In some other embodiments, the first interface 1021 and the second interface 1041 are used to connect to a signal output end, and the third interface 1024 is used to connect to a signal input end.

[0073] During operation, the third interface 1024 can be used to receive a signal in the first frequency band and transmit the received signal in the first frequency band to the connection component 108.

[0074] In this embodiment, the connection component 108 can split one path of signal into two paths, transmit one path to the first filter circuit 105, and transmit the other path to the second filter circuit 107. The first filter circuit 105 can transmit the signal to the first interface 1021, and the second filter circuit 107 can transmit the signal to the second interface 1041, so that the split signals are output by the first interface 1021 and the second interface 1041 respectively.

[0075] Among them, the connection component 108 adopts an integrated structure. A part of the connection component 108 is located in the first cavity 102, and the other part is located in the second cavity 104, and is respectively connected to the first filter circuit 105, the second filter circuit 107 and the third interface 1024. Compared with the prior art in which multiple connection structures are used to connect the filter circuits and the second interface 1041 in different cavities, the assembly tolerance is reduced, and the passive intermodulation performance of the signal transceiver device 101 is improved.

[0076] The embodiment of the present application does not limit the assembly manner of the connection component 108, the first filter circuit 105 and the second filter circuit 107. In some embodiments, as Figure 3 shown, the signal transceiver device 101 further includes: a first PCB 1050 and a second PCB 1070. The first filter circuit 105 is disposed on the first PCB 1050. A first card slot 1020 is provided in the first cavity 102, and the first PCB 1050 is detachably connected to the first card slot 1020.

[0077] Among them, for example, a first opening 1022 is provided on the first cavity 102, and the shape of the first opening 1022 is adapted to the shape of the first PCB 1050, so that the first PCB 1050 can be snap-fitted with the first card slot 1020 through the first opening 1022.

[0078] When assembling the first PCB 1050, the first PCB 1050 provided with the first filter circuit 105 can be inserted into the first cavity 102 through the first opening 1022 and snap-fitted with the first card slot 1020.

[0079] The second filter circuit 107 is disposed on the second PCB 1070. A second card slot 1040 is provided in the second cavity 104, and the second PCB 1070 is detachably connected to the second card slot 1040.

[0080] For example, a second opening 1042 is provided on the second cavity 104, and the shape of the second opening 1042 is adapted to the shape of the second PCB 1070, so that the second PCB 1070 can be snap-fitted with the second card slot 1040 through the second opening 1042.

[0081] When assembling the second PCB 1070, the second PCB 1070 provided with the second filter circuit 107 can be inserted into the first cavity 102 through the second opening 1042 and clamped with the second card slot 1040.

[0082] In addition, a third opening 1022 is provided on the first cavity 102, and the shape of the third opening 1022 is adapted to that of the connecting component 108, so that the connecting component 108 can enter the first cavity 102 and the second cavity 104 through the third opening 1022.

[0083] In some other embodiments of the present application, the third opening 1022 can also be provided on the second cavity 104.

[0084] Wherein, in some embodiments, a third card slot (not shown in the figure) adapted to the connecting component 108 is also provided in the first cavity 102 and the second cavity 104.

[0085] When assembling the connecting component 108, the connecting component 108 can be inserted into the first cavity 102 and the second cavity 104 through the third opening 1022 and clamped with the third card slot.

[0086] In some other embodiments, a mounting seat (not shown in the figure) is also provided in the first cavity 102 and the second cavity 104, and the mounting seat is used to mount the connecting component 108.

[0087] When assembling the connecting component 108, the connecting component 108 can be inserted into the first cavity 102 and the second cavity 104 through the third opening 1022 and fixedly connected to the mounting seat.

[0088] The embodiments of the present application do not limit the connection manner of the connecting component 108 and the first filter circuit 105 and the second filter circuit 107. In some embodiments of the present application, the connecting component 108 and the first filter circuit 105, and the connecting component 108 and the second filter circuit 107 are both connected by welding.

[0089] Wherein, a first welding interface 1023 is provided on the first cavity 102, for example, and the first welding interface 1023 is located above the first end of the connecting component 108 to weld the first end of the connecting component 108 and the second end of the first filter circuit 105 through the first welding interface 1023.

[0090] When welding the connecting component 108 and the first filter circuit 105, the first end of the connecting component 108 and the second end of the first filter circuit 105 can be heated to a molten state through the first welding interface 1023, so that the first end of the connecting component 108 and the second end of the first filter circuit 105 are connected as a whole after cooling.

[0091] A second welding interface 1043 is provided on the second cavity 104. The second welding interface 1043 is located above the third end of the connecting component 108, so as to weld the third end of the connecting component 108 and the second end of the second filtering circuit 107 through the second welding interface 1043.

[0092] When welding the connecting component 108 and the second filtering circuit 107, the third end of the connecting component 108 and the second end of the second filtering circuit 107 can be heated to a molten state through the second welding interface 1043, so that the third end of the connecting component 108 and the second end of the second filtering circuit 107 are connected as a whole after cooling.

[0093] In some other embodiments of the present application, the signal transceiver device 101 has three cavities. As Figure 8 、 Figure 9 shown, the signal transceiver device 101 includes: a first cavity 102, a second cavity 104 and a third cavity 103. Among them, the structures of the first cavity 102 and the second cavity 104, and the connection manners of the first filtering circuit 105, the second filtering circuit 107 and the connecting component 108 may refer to the above embodiments and will not be elaborated here.

[0094] Among them, the third cavity 103 is located between the first cavity 102 and the second cavity 104, and a fourth interface 1031 is provided on the third cavity 103.

[0095] A third filtering circuit 106 is provided in the third cavity 103. The third filtering circuit 106 includes opposite first and second ends. The first end of the third filtering circuit 106 is connected to the third interface 1024, and the second end of the third filtering circuit 106 is connected to the fourth end of the connecting component 108. The third filtering circuit 106 is used for transmitting signals in a third frequency band.

[0096] Among them, the fourth end of the connecting component 108 is located between the first end and the third end of the connecting component 108, and the connecting component 108 is also used for transmitting signals in the third frequency band.

[0097] The signal transceiver device 101 further includes: a third PCB 1060. The third filtering circuit 106 is disposed on the third PCB 1060. A third card slot 1030 is provided in the third cavity 103, and the third PCB 1060 is detachably connected to the third card slot 1030.

[0098] For example, a third opening 1022 is provided on the third cavity 103, and the third opening 1022 is adapted to the shape of the third PCB 1060.

[0099] When assembling the third PCB 1060, the third PCB 1060 provided with the third filter circuit 106 can be inserted into the third cavity 103 through the third opening 1022 and engaged with the third card slot 1030.

[0100] In addition, a third welding interface 1033 is provided on the third cavity 103, and the third welding interface 1033 is located above the fourth end of the connecting component 108 to weld the fourth end of the connecting component 108 and the second end of the third filter circuit 106 through the third welding interface 1033.

[0101] When welding the connecting component 108 and the third filter circuit 106, the fourth end of the connecting component 108 and the second end of the third filter circuit 106 can be heated to a molten state through the third welding interface 1033, so that the fourth end of the connecting component 108 and the second end of the third filter circuit 106 are connected as a whole after cooling.

[0102] Wherein, in some embodiments of the present application, the first interface 1021, the second interface 1041 and the fourth interface 1031 are used to connect to a signal input end, and the third interface 1024 is used to connect to a signal output end.

[0103] During operation, the first interface 1021 can be used to receive a signal in the first frequency band and transmit the received signal in the first frequency band to the first filter circuit 105. The first filter circuit 105 can transmit the signal to the connecting component 108. The second interface 1041 can be used to receive a signal in the second frequency band and transmit the received signal in the second frequency band to the second filter circuit 107. The fourth interface 1031 can be used to receive a signal in the third frequency band and transmit the received signal in the third frequency band to the second filter circuit 107, and then the second filter circuit 107 transmits the signal to the connecting component 108.

[0104] In this embodiment, the connecting component 108 can combine the signals in the first frequency band, the second frequency band and the third frequency band into one path, transmit them to the third interface 1024, and the third interface 1024 outputs the combined signal.

[0105] In some other embodiments of the present application, the first interface 1021, the second interface 1041 and the fourth interface 1031 are used to connect to a signal output end, and the third interface 1024 is used to connect to a signal input end.

[0106] During operation, the third interface 1024 can be used to receive signals in the first frequency band and transfer the received signals in the first frequency band to the connection component 108. The connection component 108 can divide one signal into three signals, transfer one of them to the first filter circuit 105, transfer one to the second filter circuit 107, and transfer the third to the third filter circuit 106. The first filter circuit 105 can transfer the signal to the first interface 1021, the second filter circuit 107 can transfer the signal to the second interface 1041, and the third filter circuit 106 can transfer the signal to the fourth interface 1031, so that the divided signals are output by the first interface 1021 and the second interface 1041 respectively.

[0107] The above description is based on the case where the signal transceiver device 101 includes 2-way and 3-way frequency division. In other embodiments of the present application, the signal transceiver device 101 may include N-way frequency division, where N is a positive integer greater than 1. The N-way frequency division signal transceiver device 101 can refer to the structures of 2-way and 3-way frequency division and will not be elaborated here.

[0108] The embodiments of the present application do not limit the specific structures of the first filter circuit 105, the second filter circuit 107, and the third filter circuit 106. For example, Figure 10 as shown, the first filter circuit 105, the second filter circuit 107, and the third filter circuit 106 each include, for example: a plurality of open-circuit filter stubs.

[0109] The first filter circuit 105 includes: a first main transmission line 1055, a first filter stub 1051, a second filter stub 1052, a third filter stub 1053, and a fourth filter stub 1054.

[0110] One end of the first main transmission line 1055 is connected to the first interface 1021, and the other end is connected to the connection component 108. The first main transmission line 1055 is used to transmit signals in the first frequency band, for example.

[0111] One ends of the first filter stub 1051, the second filter stub 1052, the third filter stub 1053, and the fourth filter stub 1054 are connected to the first main transmission line 1055, and the other ends are in an open-circuit state. The first filter stub 1051, the second filter stub 1052, the third filter stub 1053, and the fourth filter stub 1054 can be used to transmit stopband signals. Since the filter stubs adopt an open-circuit structure, the stopband signals can only travel back and forth on the first filter stub 1051, the second filter stub 1052, the third filter stub 1053, and the fourth filter stub 1054, and thus the stopband signals on the main transmission line can be filtered out.

[0112] The lengths of the first filtering stub 1051, the second filtering stub 1052, the third filtering stub 1053, and the fourth filtering stub 1054 are, for example, where λ1 is the wavelength corresponding to the stopband signal frequency band in the first frequency band, such that the first filtering stub 1051, the second filtering stub 1052, the third filtering stub 1053, and the fourth filtering stub 1054 can act as resonators to generate resonance within the stopband frequency band. The stopband signal can only be transmitted back and forth on this open-circuit filtering stub, and the stopband signal can be filtered out.

[0113] The first filtering stub 1051, the second filtering stub 1052, the third filtering stub 1053, and the fourth filtering stub 1054 are used to filter out the stopband signal. It should be noted that in this embodiment, the stopband signal refers to other signals outside the first frequency band, such as signals in the second frequency band and the third frequency band.

[0114] The second filtering circuit 107 includes: a second main transmission line 1074, a fifth filtering stub 1071, a sixth filtering stub 1072, and a seventh filtering stub 1073.

[0115] One end of the second main transmission line 1074 is connected to the second interface 1041, and the other end is connected to the connecting component 108. The second main transmission line 1074 is, for example, used to transmit the passband signal in the second frequency band.

[0116] One end of the fifth filtering stub 1071, the sixth filtering stub 1072, and the seventh filtering stub 1073 is connected to the second main transmission line 1074, and the other end is in an open-circuit state. Among them, the fifth filtering stub 1071, the sixth filtering stub 1072, and the seventh filtering stub 1073 can be used to transmit the stopband signal. Since the fifth filtering stub 1071, the sixth filtering stub 1072, and the seventh filtering stub 1073 adopt an open-circuit structure, the stopband signal can only be transmitted back and forth on the filtering stub, and thus the stopband signal on the main transmission line can be filtered out.

[0117] The lengths of the fifth filtering stub 1071, the sixth filtering stub 1072, and the seventh filtering stub 1073 are, for example, where λ2 is the wavelength corresponding to the stopband signal frequency band in the second frequency band, such that the fifth filtering stub 1071, the sixth filtering stub 1072, and the seventh filtering stub 1073 can act as resonators to generate resonance within the stopband frequency band. The stopband signal can only be transmitted back and forth on this open-circuit filtering stub, and the stopband signal can be filtered out. It should be noted that in this embodiment, the stopband signal refers to other signals outside the second frequency band, such as signals in the first frequency band and the third frequency band.

[0118] The third filter circuit 106 includes: a third main transmission line 1064, an eighth filter stub 1061, a ninth filter stub 1062, and a tenth filter stub 1063.

[0119] One end of the third main transmission line 1064 is connected to the fourth interface 1031, and the other end is connected to the connection component 108. The third main transmission line 1064 is used to transmit the passband signal of the third frequency band, for example.

[0120] One ends of the eighth filter stub 1061, the ninth filter stub 1062, and the tenth filter stub 1063 are connected to the third main transmission line 1064, and the other ends are in an open state. Among them, the eighth filter stub 1061, the ninth filter stub 1062, and the tenth filter stub 1063 can be used to transmit the stopband signal. Since the filter stub adopts an open - circuit structure, the stopband signal can only be transmitted back and forth on the eighth filter stub 1061, the ninth filter stub 1062, and the tenth filter stub 1063, and thus the stopband signal on the third main transmission line 1064 can be filtered out.

[0121] The lengths of the eighth filter stub 1061, the ninth filter stub 1062, and the tenth filter stub 1063 are, for example, where λ3 is the wavelength corresponding to the stopband signal frequency band in the third frequency band. This enables the eighth filter stub 1061, the ninth filter stub 1062, and the tenth filter stub 1063 to act as resonators, generating resonance within the stopband frequency band. The stopband signal can only be transmitted back and forth on this open - circuit filter stub, and the stopband signal can be filtered out. It should be noted that in this embodiment, the stopband signal refers to other signals outside the third frequency band, for example, the signals of the first frequency band and the second frequency band.

[0122] The first main transmission line 1055, the second main transmission line 1074, the third main transmission line 1064, the first filter stub 1051, the second filter stub 1052, the third filter stub 1053, the fourth filter stub 1054, the fifth filter stub 1071, the sixth filter stub 1072, the seventh filter stub 1073, the eighth filter stub 1061, the ninth filter stub 1062, and the tenth filter stub 1063 can adopt a bent structure, which can reduce the spatial size of the filter circuit and is beneficial to the miniaturization of the device.

[0123] As Figure 11 shown, the connection component 108 includes at least one transmission line segment for impedance transformation. The length of the impedance - transformed transmission line segment is L, where L is greater than where λ0 is the wavelength corresponding to the highest frequency in the input signal.

[0124] Figure 12 This is a schematic structural diagram of a feeding structure provided by the present application. As Figure 12As shown, the feeding structure includes: a phase shifter 200 and the signal transceiver device 101 as described above, and the phase shifter 200 is electrically connected to the signal transceiver device 101.

[0125] Example 1:

[0126] As Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 As shown, the feeding structure includes: a signal transceiver module 100 and a phase shifter 200 stacked along the Z direction.

[0127] Among them, as Figure 16 , Figure 17 shown, the signal transceiver module 100 includes: a first cavity 1011, a second cavity 1012, and a third cavity 1013 arranged along the Y direction. Five signal transceiver devices as Figure 9 , Figure 10 described above are arranged side by side along the X direction in the first cavity 1011, the second cavity 1012, and the third cavity 1013: a first signal transceiver device 01, a second signal transceiver device 02, a third signal transceiver device 03, a fourth signal transceiver device 04, and a fifth signal transceiver device 05.

[0128] The setting method of each signal transceiver device can refer to the relevant descriptions in the above Figure 8 and Figure 9 , and will not be elaborated here.

[0129] As Figure 15 shown, the phase shifter 200 includes: a fourth cavity 2001, a fifth cavity 2002, and a sixth cavity 2003. Each cavity is provided with a phase shifting structure. Among them, the fourth cavity 2001 is opposite to the first cavity 1011, the fifth cavity 2002 is opposite to the second cavity 1012, and the sixth cavity 2003 is opposite to the third cavity 1013. The phase shifter is used to adjust the phase of the signal.

[0130] The feeding structure further includes: an input port Pin and a first output port Pout1, a second output port Pout2, a third output port Pout3, and a fourth output port Pout4.

[0131] The feeding structure further includes: a conductive insert 205, and the five signal transceiver devices are respectively electrically connected to the phase shifting structure through the conductive insert 205.

[0132] Among them, the connection structure of the fifth signal transceiver device 05 is connected to the input port. The fifth signal transceiver device 05 includes three filtering circuits, and the fifth signal transceiver device 05 is used to divide the received signal into three paths.

[0133] Each filtering circuit of the fifth signal transceiver device 05 is respectively connected to the input port of a phase shifter through a conductive insert tab.

[0134] The four output ports of the phase shifter are respectively connected to the filtering circuits of the first signal transceiver device 01, the second signal transceiver device 02, the third signal transceiver device 03, and the fourth signal transceiver device 04 through conductive insert tabs.

[0135] During use, signals in input frequency bands 1, 2, and 3 are received by the input port Pin, split into three paths after passing through the third signal transceiver device 03, and the three paths of signals are respectively transmitted to the input ports of their filtering circuits, and then input to the input ports of the respective phase shifting structures through the conductive insert tabs 205. After passing through the respective phase shifting structures, corresponding power splitting and phase shifting are achieved, and the signals are output from the four output ports of the phase shifter 200 and input to the input ends of the filtering circuits of the first signal transceiver device 01, the second signal transceiver device 02, the third signal transceiver device 03, and the fourth signal transceiver device 04 through the insert tab PCBs, and finally output at the output ports (the first output port Pout1, the second output port Pout2, the third output port Pout3, and the fourth output port Pout4) of the first signal transceiver device 101, the second signal transceiver device 101, the third signal transceiver device 101, and the fourth signal transceiver device 101.

[0136] In addition, the feeding structure further includes: a first pull rod 2011, a second pull rod 2012, a third pull rod 2013, a first sliding medium 202, a second sliding structure 203, and a third sliding medium 204.

[0137] The first pull rod 2011 is connected to the first sliding medium 202. When the first pull rod 2011 is pushed or pulled, the first sliding medium 202 slides relative to the first cavity 1011.

[0138] The second pull rod 2012 is connected to the second sliding medium 203. When the second pull rod 2012 is pushed or pulled, the second sliding medium 203 slides relative to the second cavity 1012.

[0139] The third pull rod 2013 is connected to the third sliding medium 204. When the third pull rod 2013 is pushed or pulled, the third sliding medium 204 slides relative to the third cavity 1013.

[0140] Among them, four output ports (the first output port Pout1, the second output port Pout2, the third output port Pout3, and the fourth output port Pout4) are respectively connected to the radiation units of the array antenna. For example, after the first pull rod 2011, the second pull rod 2012, and the third pull rod 2013 drive the first sliding medium 202, the second sliding structure 203, and the third sliding medium 204 to move a certain distance, the signals of frequency band 1, frequency band 2, and frequency band 3 input by Pin are adjusted by three phase shifters 200, and the signal current intensities and phases required for feeding the radiation units are respectively provided in frequency band 1, frequency band 2, and frequency band 3, so as to change the directions of the radiation patterns of the array antenna in frequency band 1, frequency band 2, and frequency band 3 respectively.

[0141] Example 2:

[0142] The embodiment of the present application further provides a feeding structure, as Figure 18 , Figure 19 , Figure 20 shown. The feeding structure includes a signal transceiver module 100 and a phase shifter 200 stacked along the Z direction. Among them, the signal transceiver module 100 includes: 2 cavities arranged along the Y direction, and 5 signal transceiver devices 101 as Figure 6 , Figure 7 shown are arranged side by side along the X direction in the 2 cavities.

[0143] The phase shifter also includes 2 cavities. The specific structures and working processes of the signal transceiver device 100 and the phase shifter 200 can refer to Example 1 and will not be elaborated here.

[0144] The embodiment of the present application further provides an antenna 01, as Figure 21 shown. The antenna 01 includes: at least one antenna array 004, and the antenna array 004 includes: at least one radiation unit 0041, a reflector 0042, and a feeding structure 010 as described above.

[0145] The radiation unit 0041 is a unit that constitutes the basic structure of the antenna array, and it can effectively radiate or receive radio waves. The frequencies of each radiation unit 0041 can be the same or different, and the radiation unit 0041 is arranged above the reflector 0042.

[0146] The reflector 0042 (also known as the bottom plate, antenna panel, metal reflecting surface) can improve the receiving sensitivity of the antenna signal and reflect and concentrate the antenna signal at the receiving point. It not only greatly enhances the receiving / transmitting ability of the antenna, but also plays a role in blocking and shielding the interference of other radio waves from the back (opposite direction) to the received signal.

[0147] The feeding structure 010 is connected to the radiation element 0041, and the antenna array 004 can receive or transmit radio frequency signals through their respective feeding structures 010.

[0148] The feeding structure 010 can feed signals to the radiation element 0041 with a certain amplitude and phase or send the received wireless signals to the signal processing unit of the base station with a certain amplitude and phase. The feeding structure 010 is usually composed of a controlled impedance transmission line and generally includes a phase shifter 200. In some cases, it may also include devices such as a combiner and a filter.

[0149] The feeding structure 010 can achieve different radiation beam directions through transmission components or be connected to a transmission network (or calibration network) 003 to obtain the calibration signals required by the system.

[0150] The antenna 01 further includes: a radome 006, and the radiation element 0041, the reflector 0042, and the feeding structure 010 are located in the cavity surrounded by the radome 006.

[0151] The radome 006 is a structural member that can protect the antenna 01 from the external environment, has good electromagnetic wave penetration characteristics in terms of electrical performance, and can withstand the action of the external harsh environment in terms of mechanical performance.

[0152] The embodiment of the present application also provides a base station antenna-feeding system, as Figure 22 shown. This base station antenna-feeding system includes: the antenna 01 as described above. It further includes: a feeder 05, a pole 02, and an antenna adjustment bracket 03. The feeder 05 is connected to the antenna 01 through an antenna connector 005, and a connector seal 04 is provided outside the antenna connector 005. The connector seal 04 can be one of an insulating sealing tape or a PVC insulating tape.

[0153] As described above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A signal transceiver device, characterized in that, Comprising: A first cavity, on which a first interface is provided; A first filter circuit, which is arranged in the first cavity. The first filter circuit includes opposite first and second ends. The first end of the first filter circuit is connected to the first interface, and the first filter circuit is used for transmitting signals of a first frequency band; A second cavity, on which a second interface and a third interface are provided; A second filter circuit, which is arranged in the second cavity. The first filter circuit and the second filter circuit are parallel. The second filter circuit includes opposite first and second ends. The first end of the second filter circuit is connected to the second interface, and the second filter circuit is used for transmitting signals of a second frequency band; A connecting component, which includes opposite first and second ends, and a third end located between the first end and the second end of the connecting component; wherein, the first end of the connecting component is located in the first cavity, and the first end of the connecting component is connected to the second end of the first filter circuit. The third end of the connecting component is located in the second cavity, and the third end of the connecting component is connected to the second end of the second filter circuit. The second end of the connecting component is connected to the third interface; Wherein, the connecting component adopts an integrated structure, and the connecting component is used for transmitting signals of the first frequency band and the second frequency band; A third opening is provided on the first cavity or the second cavity, and the third opening is adapted to the shape of the connecting component, so that the connecting component can enter the first cavity and the second cavity through the third opening.

2. The signal transceiver device according to claim 1, characterized in that, Further comprising: A first printed circuit board (PCB), the first filter circuit is arranged on the first PCB, a first card slot is provided in the first cavity, and the first PCB is detachably connected to the first card slot; A second PCB, the second filter circuit is arranged on the second PCB, a second card slot is provided in the second cavity, and the second PCB is detachably connected to the second card slot.

3. The signal transceiver device according to claim 2, characterized in that, A first opening is provided on the first cavity, and the first opening is adapted to the shape of the first PCB, so that the first PCB can be snap-connected to the first card slot through the first opening; A second opening is provided on the second cavity, and the second opening is adapted to the shape of the second PCB, so that the second PCB can be snap-connected to the second card slot through the second opening.

4. The signal transceiver device according to any one of claims 1 - 3, characterized in that, A first welding interface is provided on the first cavity, and the first welding interface is located above the first end of the connecting component, so as to weld the first end of the connecting component and the second end of the first filter circuit through the first welding interface; A second welding interface is provided on the second cavity, and the second welding interface is located above the third end of the connecting component, so as to weld the third end of the connecting component and the second end of the second filter circuit through the second welding interface.

5. The signal transceiver device according to any one of claims 1 - 3, characterized in that, Further comprising: A third cavity, wherein the third cavity is located between the first cavity and the second cavity, and a fourth interface is provided on the third cavity; A third filtering circuit is disposed in the third cavity. The third filtering circuit includes opposite first and second ends. The first end of the third filtering circuit is connected to the third interface, and the second end of the third filtering circuit is connected to the fourth end of the connection component. The third filtering circuit is configured to transmit signals in a third frequency band; wherein, the fourth end of the connection component is located between the first end and the third end of the connection component, and the connection component is further configured to transmit signals in the third frequency band.

6. The signal transceiver device according to claim 5, characterized in that, Further included are: A third PCB, on which the connection component is disposed. A third card slot is provided in the third cavity, and the third PCB is detachably connected to the third card slot; A fourth opening is provided on the third cavity, and the fourth opening is adapted to the shape of the third PCB.

7. The signal transceiver device according to claim 5, characterized in that, A third welding interface is provided on the third cavity, and the third welding interface is located above the fourth end of the connection component to weld the fourth end of the connection component and the second end of the third filtering circuit through the third welding interface.

8. The signal transceiver device according to claim 5, characterized in that, The first interface, the second interface, and the fourth interface are configured to be connected to a signal input end, and the third interface is configured to be connected to a signal output end; or, the first interface, the second interface, and the fourth interface are configured to be connected to a signal output end, and the third interface is configured to be connected to a signal input end.

9. The signal transceiver device according to claim 5, characterized in that, The first filtering circuit, the second filtering circuit, and the third filtering circuit each include: a plurality of open-circuit filtering stubs.

10. The signal transceiver device according to claim 9, characterized in that, The length of the open-circuit filter stub is - , where λ1 is the wavelength corresponding to the stopband signal frequency band.

11. The signal transceiver device according to claim 1, characterized in that, The connecting component includes at least one transmission line segment for impedance transformation, and the length of the transmission line segment for impedance transformation is greater than , where λ2 is the wavelength corresponding to the highest frequency in the input signal.

12. A feeding structure, characterized in that, Included are: A phase shifter and the signal transceiver device according to any one of claims 1-11, the phase shifter being electrically connected to the signal transceiver device.

13. An antenna, characterized in that, Included are: At least one antenna array, the antenna array including: at least one radiation element, a reflector, and the feeding structure according to claim 12; The radiation element is disposed above the reflector, and the feeding structure is connected to the radiation element.

14. The antenna according to claim 13, characterized in that, The antenna further includes: a radome, and the radiation element, the reflector, and the feeding structure are located in a cavity surrounded by the radome.

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