Integrated structure of fan-shaped phase shifter and filtering combiner

Abstract

The utility model provides an integrated structure of fan-shaped phase shifters and filtering combiners, which is provided with a first fan-shaped phase shifter, a second fan-shaped phase shifter, a first filtering combiner and a second filtering combiner. A branch feed output end corresponding to the first fan-shaped phase shifter is respectively connected with branch feed input ends of the first filtering combiner and the second filtering combiner, and a branch feed output end corresponding to the second fan-shaped phase shifter is respectively connected with branch feed input ends of the first filtering combiner and the second filtering combiner, so that integration of multi-band signals can be realized; and meanwhile, the internal structure of the antenna is simplified, so that the difficulty of antenna layout is reduced, the production cost is reduced, and the stability of the output quality of the antenna is improved.

Description

Technical Field

[0001] The utility model relates to the field of antennas, in particular to an integrated structure of a sector-shaped phase shifter and a filter combiner. Background Art

[0002] With the rapid development of communication technology, base station antennas are developing towards multi-frequency, multi-port and miniaturization. Due to the increasingly tight antenna site and antenna resources, the demand for multi-standard and multi-band antennas is increasing day by day. Multi-frequency antennas can not only greatly save antenna resources, but also reduce the construction and operation costs of base stations.

[0003] In the existing technology, most antennas use split-type phase shifters and combiners to achieve network interconnection. Typical examples include microstrip combiners, cavity combiners, stripline combiners, etc. However, as the number of frequency bands increases, the number of phase shifters, combiners and connecting cables inside the antenna also increases, making the antenna layout difficult and the cost increased. At the same time, the number of solder joints also increases, which makes the third-order intermodulation quality of the antenna unstable. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide an integrated structure of a sector-shaped phase shifter and a filter combiner, which can miniaturize the internal structure of the antenna and can also fuse the multi-band signals of the antenna, thereby reducing the difficulty of antenna layout, reducing production costs and improving the stability of antenna output quality.

[0005] To achieve the above-mentioned purpose, a first aspect of an embodiment of the present application proposes an integrated structure of a sector phase shifter and a filter combiner, including:

[0006] A sector phase shifter, the sector phase shifter is used to receive and adjust the phase of the signal, the sector phase shifter comprises: a first sector phase shifter and a second sector phase shifter, the first sector phase shifter comprises: a first phase shifter main feed input end, a first phase shifter branch feed output end and a second phase shifter branch feed output end, the second sector phase shifter comprises: a second phase shifter main feed input end, a third phase shifter branch feed output end and a fourth phase shifter branch feed output end;

[0007] A filter combiner, the filter combiner is used to filter the signal and output the phase of the signal, the filter combiner includes: a first filter combiner and a second filter combiner, the first filter combiner includes: a first filter combiner branch feed input end, a second filter combiner branch feed input end and a first filter combiner main feed output end, the second filter combiner includes: a third filter combiner branch feed input end, a fourth filter combiner branch feed input end and a second filter combiner main feed output end;

[0008] The first phase shifter feeding output end is connected to the first filter combiner feeding input end, the second phase shifter feeding output end is connected to the second filter combiner feeding input end, the third phase shifter feeding output end is connected to the third filter combiner feeding input end, and the fourth phase shifter feeding output end is connected to the fourth filter combiner feeding input end.

[0009] Furthermore, in some embodiments, the circuit structure of the sector phase shifter is a microstrip slow-wave circuit structure.

[0010] Furthermore, in some embodiments, the line in the microstrip slow-wave line structure is a quarter-wavelength short line.

[0011] Further, in some embodiments, the first phase shifter feeding output end includes at least one feeding output port; the second phase shifter feeding output end includes at least one feeding output port; the third phase shifter feeding output end includes at least one feeding output port; and the fourth phase shifter feeding output end includes at least one feeding output port.

[0012] Further, in some embodiments, the first filter combiner feeding input end includes at least one feeding input port; the second filter combiner feeding input end includes at least one feeding input port; the third filter combiner feeding input end includes at least one feeding input port; and the fourth filter combiner feeding input end includes at least one feeding input port.

[0013] Furthermore, in some embodiments, the sector phase shifter and the filter combiner are both located inside the PCB circuit board.

[0014] Furthermore, in some embodiments, the integrated structure of the sector phase shifter and the filter combiner further includes:

[0015] A coupling slide, the coupling slide is located on the top of the PCB circuit board, and the coupling slide includes a microstrip route;

[0016] Green oil layer: The green oil layer is used to protect the circuit. The top of the green oil layer is connected to the coupling slide, and the bottom of the green oil layer is connected to the PCB circuit board.

[0017] Furthermore, in some embodiments, the integrated structure of the sector phase shifter and the filter combiner further includes:

[0018] The metal base is located at the bottom of the PCB circuit board. The metal base is used as a connecting component between the PCB circuit board and the antenna. The middle part of the metal base is a hollow design.

[0019] Rivets: Rivets are used to fix the connection between the PCB and the metal base. The rivets run through the PCB and the metal base.

[0020] Cable, the cable is used to transmit the feeding information of the PCB circuit board to the antenna, and the cable is connected to the PCB circuit board through the middle hollow part of the metal base.

[0021] Furthermore, in some embodiments, the integrated structure of the sector phase shifter and the filter combiner further includes: a pull rod driving device, the pull rod driving device is used to adjust the orientation of the PCB circuit board, and the pull rod driving device is connected to the coupling slide.

[0022] Further, in some embodiments, the pull rod driving device further includes: a rocker arm, the rocker arm is used as an adjustment component of the PCB circuit board, and the rocker arm is connected to the coupling slide;

[0023] The shaft sleeve is used as a rotating support component of the rocker arm. The rocker arm is connected to the shaft sleeve, and the shaft sleeve is connected to the PCB circuit board;

[0024] A pull rod, which is used as a rotating transmission component of the rocker arm;

[0025] A U-shaped sheet metal part, the U-shaped sheet metal part is used to fix the tie rod, and the U-shaped sheet metal part is connected to the tie rod;

[0026] Screw lock, the screw lock is used as the position of the adjustment rod, the screw lock is connected to the U-shaped sheet metal, and the screw lock is connected to the rocker arm.

[0027] According to the integrated structure of the sector phase shifter and the filter combiner of the embodiment of the utility model, there are at least the following beneficial effects: by providing a first sector phase shifter, a second sector phase shifter, a first filter combiner and a second filter combiner, wherein the first sector phase shifter is provided with a first phase shifter main feed input terminal, a plurality of first phase shifter branch feed output terminals and a plurality of second phase shifter branch feed output terminals, the second sector phase shifter is provided with a second phase shifter main feed input terminal, a plurality of third phase shifter branch feed output terminals and a plurality of fourth phase shifter branch feed output terminals, the first filter combiner is provided with a first filter combiner branch feed input terminal, a second filter combiner branch feed input terminal and a first filter combiner; The first sector phase shifter has a main feed output terminal, a third filter combiner has a branch feed input terminal, a fourth filter combiner has a branch feed input terminal and a second filter combiner has a main feed output terminal, the first sector phase shifter has a corresponding branch feed output terminal connected to the first filter combiner and the second filter combiner, respectively, and the second sector phase shifter has a corresponding branch feed output terminal connected to the first filter combiner and the second filter combiner, respectively, thereby realizing the integration of multi-band signals and simplifying the internal structure of the antenna, thereby reducing the difficulty of antenna layout, reducing production costs and improving the stability of antenna output quality.

[0028] Other features and advantages of the present invention will be described in the following description and will become apparent in part from the description. The purpose and other advantages of the present invention can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0031] Figure 1 It is an integrated structural diagram of a sector phase shifter and a filter combiner provided in an embodiment of the utility model;

[0032] Figure 2 It is a top view of the integrated structure of the sector-shaped phase shifter and the filter combiner provided by the embodiment of the utility model;

[0033] Figure 3 It is an exploded view of the integrated structure of the sector phase shifter and the filter combiner provided in the embodiment of the utility model;

[0034] Figure 4 It is a bottom view of the integrated structure of the sector-shaped phase shifter and the filter combiner provided by the embodiment of the utility model;

[0035] Figure numerals: integrated structure 100 of sector phase shifter and filter combiner, sector phase shifter 110, first sector phase shifter 111, second sector phase shifter 112, first phase shifter main feed input terminal 120, first phase shifter branch feed output terminal 121, second phase shifter branch feed output terminal 122, second phase shifter main feed input terminal 123, third phase shifter branch feed output terminal 124, fourth phase shifter branch feed output terminal 125, filter combiner 130, first filter combiner 131, second filter combiner 132, first filter combiner branch feed input terminal 140, second filter combiner branch feed input terminal 141, first filter combiner main feed output terminal 142, third filter combiner branch feed input terminal 143, fourth filter combiner branch feed input terminal 144, second filter combiner main feed output terminal 145;

[0036] PCB circuit board 140, coupling slide 150, green oil layer 160, metal base 170, rivet 180, cable 190, pull rod drive device 200, rocker arm 210, bushing 220, pull rod 230, U-shaped sheet metal 240, screw lock 250. DETAILED DESCRIPTION

[0037] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0038] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] With the rapid development of communication technology, base station antennas are developing towards multi-frequency, multi-port and miniaturization. Due to the increasingly tight antenna site and antenna resources, the demand for multi-standard and multi-band antennas is increasing day by day. Multi-frequency antennas can not only greatly save antenna resources, but also reduce the construction and operation costs of base stations.

[0041] In the existing technology, most antennas use split-type phase shifters and combiners to achieve network interconnection. Typical examples include microstrip combiners, cavity combiners, stripline combiners, etc. However, as the number of frequency bands increases, the number of phase shifters, combiners and connecting cables inside the antenna also increases, making the antenna layout difficult and the cost increased. At the same time, the number of solder joints also increases, which makes the third-order intermodulation quality of the antenna unstable.

[0042] Based on this, an embodiment of the utility model provides an integrated structure of a sector phase shifter and a filter combiner, by providing a first sector phase shifter, a second sector phase shifter, a first filter combiner and a second filter combiner, wherein the first sector phase shifter is provided with a first phase shifter main feed input terminal, a plurality of first phase shifter branch feed output terminals and a plurality of second phase shifter branch feed output terminals, the second sector phase shifter is provided with a second phase shifter main feed input terminal, a plurality of third phase shifter branch feed output terminals and a plurality of fourth phase shifter branch feed output terminals, the first filter combiner is provided with a first filter combiner branch feed input terminal, a second filter combiner branch feed input terminal and a first filter combiner The main feed output terminal of the filter combiner, the second filter combiner is provided with a third filter combiner branch feed input terminal, a fourth filter combiner branch feed input terminal and a second filter combiner main feed output terminal, the branch feed output terminal corresponding to the first sector phase shifter is respectively connected to the branch feed input terminal of the first filter combiner and the second filter combiner, and the branch feed output terminal corresponding to the second sector phase shifter is respectively connected to the branch feed input terminal of the first filter combiner and the second filter combiner, thereby enabling the integration of multi-band signals, while simplifying the internal structure of the antenna, thereby reducing the difficulty of antenna layout, reducing the production cost and improving the stability of antenna output quality. Therefore, the following is a further elaboration of the embodiment of the utility model in conjunction with the accompanying drawings.

[0043] Reference Figure 1 and Figure 2 As shown, Figure 1 is an integrated structural diagram of a sector phase shifter and a filter combiner provided in an embodiment of the utility model, Figure 2 The integrated structure 100 of the sector phase shifter and the filter combiner provided by the embodiment of the utility model includes a sector phase shifter 110, the sector phase shifter 110 is used to receive and adjust the phase of the signal, the sector phase shifter 110 includes: a first sector phase shifter 111 and a second sector phase shifter 112, the first sector phase shifter 111 includes: a first phase shifter main feed input terminal 120, a first phase shifter branch feed output terminal 121 and a second phase shifter branch feed output terminal 122, the second sector phase shifter 112 includes: a second phase shifter main feed input terminal 123, a third phase shifter branch feed output terminal 124 and a fourth phase shifter branch feed output terminal 125; filter combiner 130, filter combiner 130 is used to filter the signal and output the phase of the signal, filter combiner 130 includes: a first filter combiner 131 and a second filter combiner 132, the first filter combiner 131 includes: a first filter combiner branch feed input terminal 140, a second filter combiner branch feed input terminal 141 and a first filter combiner main feed output terminal 142, the second filter combiner 132 includes: a third filter combiner branch feed input terminal 143, a fourth filter combiner branch feed input terminal 144 and a second filter combiner main feed output terminal 145;

[0044] The first phase shifter feeding output terminal 121 is connected to the first filter combiner feeding input terminal 140, the second phase shifter feeding output terminal 122 is connected to the second filter combiner feeding input terminal 141, the third phase shifter feeding output terminal 124 is connected to the third filter combiner feeding input terminal 143, and the fourth phase shifter feeding output terminal 125 is connected to the fourth filter combiner feeding input terminal 144.

[0045] Specifically, the first sector phase shifter 111 works on a first frequency band signal, and the second sector phase shifter 112 works on a second frequency band signal.

[0046] Furthermore, it should be noted that the circuit structure of the sector-shaped phase shifter 110 is a microstrip slow-wave circuit structure, which is conducive to the miniaturization of the sector-shaped phase shifter 110 to release a larger layout space, wherein the microstrip structural features are not specifically limited.

[0047] Furthermore, it should be noted that the route in the microstrip slow-wave line structure is a quarter-wavelength short route, so that the amplitude can be optimized and tuned.

[0048] Further, it should be noted that the first phase shifter feeding output terminal 121 includes at least one feeding output port; the second phase shifter feeding output terminal 122 includes at least one feeding output port; the third phase shifter feeding output terminal 124 includes at least one feeding output port; and the fourth phase shifter feeding output terminal 125 includes at least one feeding output port.

[0049] Further, in some embodiments, the first filter combiner feeding input terminal 141 includes at least one feeding input port; the second filter combiner feeding input terminal 142 includes at least one feeding input port; the third filter combiner feeding input terminal 143 includes at least one feeding input port; and the fourth filter combiner feeding input terminal 144 includes at least one feeding input port.

[0050] Further, according to Figure 1 As shown, the sector phase shifter 110 and the filter combiner 130 are both located in a PCB circuit board 140, and the substrate in the PCB circuit board 140 is made of a plate with a dielectric constant of 3.0 and a thickness of 0.762 mm.

[0051] Further, refer to Figure 3 and Figure 4 As shown, Figure 3 This is an exploded view of the integrated structure of the sector phase shifter and the filter combiner provided by the embodiment of the utility model. Figure 4It is a bottom view of the integrated structure of the sector-shaped phase shifter and the filter combiner provided by an embodiment of the utility model. The integrated structure 100 of the sector-shaped phase shifter and the filter combiner also includes: a coupling slide 150, the coupling slide 150 is located on the top of the PCB circuit board 140, and the coupling slide 150 includes a microstrip route; a green oil layer 160, the green oil layer 160 is used to protect the circuit, the top of the green oil layer 160 is connected to the coupling slide 150, and the bottom of the green oil layer 160 is connected to the PCB circuit board 140.

[0052] It should be noted that the coupling slide 150 and the PCB circuit board 140 are fed by signal coupling, and the substrate in the coupling slide 150 is made of a plate with a dielectric constant of 3.0 and a thickness of 0.762 mm; the surface of the green oil layer 160 is smooth, which has an antioxidant effect on the quarter-wavelength short circuit of the PCB circuit board 140 and the microstrip circuit on the coupling slide 150, which is beneficial to the dirt resistance and aesthetics of the PCB circuit board.

[0053] Further, according to Figure 2 As shown, the integrated structure 100 of the sector phase shifter and the filter combiner also includes: a metal base 170, which is located at the bottom of the PCB circuit board 140, and is used as a connecting component between the PCB circuit board 140 and the antenna, and the middle part of the metal base 170 is a hollow design. Rivet 180, which is used to fix the connection between the PCB circuit board 140 and the metal base 170, and the rivet 180 runs through the PCB circuit board 140 and the metal base 170; a cable 190, which is used to transmit the feeding information of the PCB circuit board 140 to the antenna, and the cable 190 is connected to the PCB circuit board 140 through the middle hollow part of the metal base 170.

[0054] It should be noted that the metal base 170 is made of a sheet metal with a thickness of 2 mm and a strength that is not easily deformed.

[0055] Furthermore, in some embodiments, the integrated structure of the sector phase shifter and the filter combiner also includes: a pull rod driving device 200, the pull rod driving device 200 is used to adjust the orientation of the PCB circuit board 140, and the pull rod driving device 200 is connected to the coupling slide 150.

[0056] Further, in some embodiments, the pull rod drive device 200 also includes: a rocker arm 210, the rocker arm 210 is used as an adjustment component of the PCB circuit board 140, and the rocker arm 210 is connected to the coupling slide 150; a sleeve 220, the sleeve 220 is used as a rotation support component of the rocker arm 210, the rocker arm 210 is connected to the sleeve 220, and the sleeve 220 is connected to the PCB circuit board 140; a pull rod 230, the pull rod 230 is used as a rotation transmission component of the rocker arm 210; a U-shaped sheet metal part 240, the U-shaped sheet metal part 240 is used to fix the pull rod 230, and the U-shaped sheet metal part 240 is connected to the pull rod 230; a screw lock 250, the screw lock 250 is used as a position for adjusting the pull rod 230, the screw lock 250 is connected to the U-shaped sheet metal part 240, and the screw lock 250 is connected to the rocker arm 210.

[0057] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An integrated structure of a sector phase shifter and a filter combiner, characterized in that ,include: A sector phase shifter, the sector phase shifter is used to receive and adjust the phase of a signal, the sector phase shifter comprises: a first sector phase shifter and a second sector phase shifter, the first sector phase shifter comprises: a first phase shifter main feed input end, a first phase shifter branch feed output end and a second phase shifter branch feed output end, the second sector phase shifter comprises: a second phase shifter main feed input end, a third phase shifter branch feed output end and a fourth phase shifter branch feed output end; A filter combiner, the filter combiner is used to filter a signal and output the phase of the signal, the filter combiner comprises: a first filter combiner and a second filter combiner, the first filter combiner comprises: a first filter combiner branch feed input end, a second filter combiner branch feed input end and a first filter combiner main feed output end, the second filter combiner comprises: a third filter combiner branch feed input end, a fourth filter combiner branch feed input end and a second filter combiner main feed output end; The first phase shifter feeding output end is connected to the first filter combiner feeding input end, the second phase shifter feeding output end is connected to the second filter combiner feeding input end, the third phase shifter feeding output end is connected to the third filter combiner feeding input end, and the fourth phase shifter feeding output end is connected to the fourth filter combiner feeding input end.

2. The integrated structure of the sector phase shifter and the filter combiner according to claim 1, characterized in that: The circuit structure of the sector phase shifter is a microstrip slow-wave circuit structure.

3. The integrated structure of the sector phase shifter and the filter combiner according to claim 2, characterized in that: The route in the microstrip slow-wave line structure is a quarter-wavelength short route.

4. The integrated structure of the sector phase shifter and the filter combiner according to claim 1, characterized in that: The first phase shifter feed output end includes at least one feed output port; the second phase shifter feed output end includes at least one feed output port; the third phase shifter feed output end includes at least one feed output port; and the fourth phase shifter feed output end includes at least one feed output port.

5. The integrated structure of the sector phase shifter and the filter combiner according to claim 1, characterized in that: The first filter combiner feed input end includes at least one feed input port; the second filter combiner feed input end includes at least one feed input port; the third filter combiner feed input end includes at least one feed input port; the fourth filter combiner feed input end includes at least one feed input port.

6. The integrated structure of the sector phase shifter and the filter combiner according to claim 1, characterized in that: The sector phase shifter and the filter combiner are both located inside the PCB circuit board.

7. The integrated structure of the sector phase shifter and the filter combiner according to claim 6, characterized in that: It also includes: a coupling slide, the coupling slide is located on the top of the PCB circuit board, and the coupling slide includes a microstrip route; A green oil layer, the green oil layer is used to protect the circuit, the top of the green oil layer is connected to the coupling slide, and the bottom of the green oil layer is connected to the PCB circuit board.

8. The integrated structure of the sector phase shifter and the filter combiner according to claim 7, characterized in that: Also includes: A metal base, the metal base is located at the bottom of the PCB circuit board, the metal base is used as a connecting component between the PCB circuit board and the antenna, and the middle part of the metal base is a hollow design; A rivet, which is used to fix the connection between the PCB circuit board and the metal base, and the rivet runs through the PCB circuit board and the metal base; A cable is used to transmit the feeding information of the PCB circuit board to the antenna, and the cable is connected to the PCB circuit board through the middle hollow part of the metal base.

9. The integrated structure of the sector phase shifter and the filter combiner according to claim 8, characterized in that: Also includes: A pull rod driving device, the pull rod driving device is used to adjust the orientation of the PCB circuit board, and the pull rod driving device is connected to the coupling slide.

10. The integrated structure of the sector phase shifter and the filter combiner according to claim 9, characterized in that: The pull rod driving device comprises: A rocker arm, which is used as an adjustment component of the PCB circuit board, and is connected to the coupling slide; a shaft sleeve, which is used as a rotation support component of the rocker arm, and is connected to the shaft sleeve, and is connected to the PCB circuit board; A pull rod, the pull rod being used as a rotation transmission component of the rocker arm; A U-shaped sheet metal part, the U-shaped sheet metal part is used to fix the pull rod, and the U-shaped sheet metal part is connected to the pull rod; a screw lock, the screw lock is used to adjust the position of the pull rod, the screw lock is connected to the U-shaped sheet metal part, and the screw lock is connected to the rocker arm.

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