WO2023130690A1 - Multi-frequency fusion phase-shifting feed network and base station antenna - Google Patents
Multi-frequency fusion phase-shifting feed network and base station antenna Download PDFInfo
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- WO2023130690A1 WO2023130690A1 PCT/CN2022/103260 CN2022103260W WO2023130690A1 WO 2023130690 A1 WO2023130690 A1 WO 2023130690A1 CN 2022103260 W CN2022103260 W CN 2022103260W WO 2023130690 A1 WO2023130690 A1 WO 2023130690A1
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- phase
- shifting
- circuit board
- shifting circuit
- feed network
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- 230000004927 fusion Effects 0.000 title claims abstract description 40
- 230000008878 coupling Effects 0.000 claims description 29
- 238000010168 coupling process Methods 0.000 claims description 29
- 238000005859 coupling reaction Methods 0.000 claims description 29
- 230000010363 phase shift Effects 0.000 claims description 25
- 230000005855 radiation Effects 0.000 claims description 8
- 229910000679 solder Inorganic materials 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 4
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 12
- 230000000903 blocking effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000005476 soldering Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000002304 esc Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
- H01P1/184—Strip line phase-shifters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
Definitions
- the present application relates to the technical field of antennas, in particular to a multi-frequency fusion phase-shift feeding network and a base station antenna.
- different frequency bands of the base station antenna form different beam orientations, adjust the beam orientation for different users, accurately cover user targets, and greatly improve service quality and communication efficiency.
- a multi-frequency fusion feed network for independent ESCs in different frequency bands is required.
- the existing solution is mainly to set a combiner under the radiation oscillator, and each frequency band is connected to the combiner after being electrically adjusted by a phase shifter for combination and then connected to the radiation oscillator.
- the existing feed network has the problems of large antenna space occupation, complex layout, many cable solder joints, high risk of intermodulation, and poor index consistency.
- This application provides a multi-frequency fusion phase-shift feed network and base station antenna, which are used to solve the existing feed network that occupies a large space for the antenna, has a complex layout, and at the same time has many solder joints, high risk of intermodulation, and poor index consistency. The problem.
- the present application provides a multi-frequency fusion phase-shifting feed network, including a plurality of phase-shifting components, each of which includes a phase-shifting circuit board and a slide assembly that is rotatably connected to the phase-shifting circuit board.
- a phase-shifting circuit is provided on the phase-shifting circuit board corresponding to the slider assembly, and the multiple phase-shifting circuit boards are divided into a first phase-shifting circuit board and a second phase-shifting circuit board, and the first phase-shifting circuit
- a combination circuit is arranged on the board, and the phase-shifting output ports of the phase-shifting circuit on the first phase-shifting circuit board and the phase-shifting circuit on the second phase-shifting circuit board are connected to the combining circuit respectively. The combined input port of the circuit.
- the combination circuit is connected to the phase-shift output port on the first phase-shift circuit board through a microstrip line, and the combination circuit is connected to the phase-shift output port on the first phase-shift circuit board.
- the phase-shift output ports on the second phase-shift circuit board are connected through cables.
- the combining circuit is distributed at both ends of the first phase-shifting circuit board, and at either end of the first phase-shifting circuit board, the combining circuit Both the combination input port and the combination output port connecting the circuit with the second phase-shifting circuit board are arranged at the end of the phase-shifting circuit board.
- the first phase-shifting circuit board is connected to the first support plate, and the two ends of the first support plate are respectively provided with line cards, and the line cards are provided with Has a cable slot.
- a stepped portion is provided at the end of the first support plate, and the line clamp is disposed on the stepped portion.
- a plurality of the phase-shifting circuit boards are stacked up and down, and two adjacent phase-shifting circuit boards are connected by a support.
- the slider assembly includes a coupling slider and a rotating shaft, and the rotating shaft passes through one end of the coupling slider and the phase-shifting circuit board in sequence, and the rotating shaft A fastener is detachably connected to one end passing through the phase-shifting circuit board, the coupling slide is rotatably connected to the rotating shaft, and the rotating shaft is integrally fixedly connected to the phase-shifting circuit board through the fastener .
- the fastener is a fastening nut, and the part where the rotating shaft passes through the phase-shifting circuit board is provided with an external thread matching the fastening nut; And the side of the fastening nut facing the phase-shifting circuit board is provided with an elastic arm.
- a positioning structure is also provided between the fastening nut and the phase-shifting circuit board; a bump on one side of the phase circuit board, and a positioning hole provided on the first support plate to match the bump.
- the present application also provides a base station antenna, which includes the above-mentioned multi-frequency fusion phase-shift feeding network, and also includes a plurality of radiation oscillators, and the plurality of radiation oscillators are connected to the combination output ports of the plurality of combination circuits in one-to-one correspondence .
- This application provides a multi-frequency fusion phase-shifting feed network and base station antenna. Multiple phase-shifting components are set to achieve independent phase-shifting in different frequency bands. At the same time, the phase-shifting output ports of multiple phase-shifting components are connected to the first phase-shifting circuit.
- the combination circuit of the board On the combination circuit of the board, different frequency bands are fused through the combination circuit to realize multi-frequency independent phase shifting and fusion output;
- the combination circuit is integrated on the first phase shifting circuit board, no need to set up a separate combiner, which can be easily connected , which is beneficial to reduce the occupied antenna space, simplify the layout, and reduce the solder joints of cables;
- the phase-shifting component includes a phase-shifting circuit board and a slide component, which is simple in structure and is conducive to reducing the installation space;
- the phase-shifting feed network has good phase change Stable, consistent and easy to assemble.
- FIG. 1 is an overall exploded schematic diagram of the multi-frequency fusion phase-shifting feed network provided by the present application
- Fig. 2 is the exploded schematic view that the first phase-shifting circuit board provided by the present application is arranged;
- Fig. 3 is the schematic diagram of the first phase-shifting circuit board provided by the present application.
- Fig. 4 is the schematic diagram of the second phase-shifting circuit board provided by the present application.
- Figure 5 is a schematic structural view of the first support plate provided by the present application.
- FIG. 6 is a schematic structural diagram of a line card provided by the present application.
- Figure 7 is a schematic structural view of the support provided by the present application.
- Fig. 8 is a schematic structural view of the rotating shaft provided by the present application.
- Fig. 9 is the first schematic diagram of the fastening nut provided by the present application.
- Fig. 10 is a second schematic diagram of the fastening nut provided by the present application.
- Fig. 11 is a schematic structural view of the fixing clip provided by the present application.
- 101 the first phase-shifting circuit board; 102: the second phase-shifting circuit board; 201: the first supporting board;
- 501 combined input port
- 502 combined output port
- 503 welding pad
- a multi-frequency fusion phase-shift feeding network and a base station antenna of the present application will be described below with reference to FIGS. 1 to 11 .
- the present embodiment provides a multi-frequency fusion phase-shifting feed network, which includes a plurality of phase-shifting components, each of which includes a phase-shifting circuit board and a rotating connection
- a phase-shifting circuit 4 is provided on the phase-shifting circuit board corresponding to the slider assembly 3 .
- the slide assembly 3 is rotatable relative to the phase-shifting circuit board, and the phase-shifting circuit 4 can be arranged within the rotation range of the slide assembly 3 .
- the phase shifting assembly rotates the slide assembly 3 relative to the phase shifting circuit board so that the phase difference of each port changes, thereby realizing downtilting of the antenna beam of the base station.
- a plurality of said phase-shifting circuit boards are divided into a first phase-shifting circuit board 101 and a second phase-shifting circuit board 102, said first phase-shifting circuit board 101 is provided with a combining circuit 5, said first phase-shifting circuit
- the phase shifting output ports of the phase shifting circuit 4 on the board 101 and the phase shifting circuit 4 on the second phase shifting circuit board 102 are respectively connected to the combining input port 501 of the combining circuit 5 .
- the phase-shifting circuit board provided with the combining circuit 5 is called the first phase-shifting circuit board 101
- the phase-shifting circuit board without the combining circuit 5 is called the second phase-shifting circuit board 102 . That is to say, in this embodiment, the combining circuit 5 is integrated on the first phase-shifting circuit board 101; the phase-shifting output ports of a plurality of phase-shifting circuit boards are connected to the combining input port 501 of the combining circuit 5 at the same time, thereby through The combining circuit 5 outputs after combining.
- Multiple phase-shifting circuit boards can correspond to antenna signals of multiple frequency bands, thereby realizing multi-frequency combined output through the combining circuit 5 .
- phase-shifting components are set to realize independent phase-shifting in different frequency bands, and at the same time, the phase-shifting output ports of multiple phase-shifting components are connected to the first phase-shifting circuit board 101
- the combiner circuit 5 is integrated and arranged on the first phase shifting circuit board 101, without a separate combiner, It can be easily connected, which is conducive to reducing the space occupied by the antenna, simplifying the layout, and reducing solder joints of cables
- the phase-shifting assembly includes a phase-shifting circuit board and a slide assembly 3, which is simple in structure and is conducive to reducing the installation space; the phase-shifting feed network has Good phase change stability, good consistency and easy assembly.
- each combiner circuit 5 is provided with a combiner output port 502 .
- the corresponding phase-shifting output ports on multiple phase-shifting circuit boards are connected to multiple combining input ports 501 of a combining circuit 5 in one-to-one correspondence, and output after being combined.
- a phase-shifting input port and 7 phase-shifting input ports are arranged on the first phase-shifting circuit board 101 Phase-shifting output port, there is also a phase-shifting input port and 7 phase-shifting output ports on the second phase-shifting circuit board 102;
- the circuit 5 that is, the first phase-shifting circuit board 101 is provided with seven combining circuits 5 ; each combining circuit 5 has two combining input ports 501 and one combining output port 502 .
- each combining circuit 5 One of the two combining input ports 501 of each combining circuit 5 is connected with the phase-shifting output port on the first phase-shifting circuit board 101, and the other is connected with the corresponding phase-shifting output port on the second phase-shifting circuit board 102 . Thereby a group of corresponding phase-shifting output ports on the first phase-shifting circuit board 101 and the second phase-shifting circuit board 102 are connected with a combining circuit 5, and output after combining.
- the number of phase-shift output ports on each phase-shift circuit board can also be other, and the number of corresponding combining circuits 5 can also be other, which is not specifically limited.
- the number of phase-shifting circuit boards can also be three or more, so as to realize combined output of more different frequency bands, which is not specifically limited.
- the combination circuit 5 is connected with the phase-shift output port on the first phase-shift circuit board 101 by a microstrip line, and the combination circuit 5 is set On the first phase-shifting circuit board 101 , a microstrip line can be directly arranged to connect the phase-shifting output port and the combining input port 501 on the first phase-shifting circuit board 101 , so as to reduce cable setting, solder joints, and facilitate connection.
- the combining circuit 5 is connected to the phase-shifting output port on the second phase-shifting circuit board 102 through a cable. Specifically, it can be connected by cable welding.
- the combining circuit 5 is distributed at both ends of the first phase-shifting circuit board 101, and at either end of the first phase-shifting circuit board 101, Both the combination input port 501 and the combination output port 502 of the combination circuit 5 connected to the second phase-shifting circuit board 102 are provided at the end of the phase-shifting circuit board.
- the combining circuit 5 is distributed on the two ends of the first phase-shifting circuit board 101, which can facilitate the distribution of each connecting port of the combining circuit 5 on the end of the first phase-shifting circuit board 101, thereby facilitating the combination circuit. 5; and the phase shifting circuit is located in the middle of the first phase shifting circuit board 101, which facilitates the setting of the slide assembly 3.
- the combination input port 501 and the combination output port 502 of the combination circuit 5 connected to the second phase-shifting circuit board 102 are arranged in a row.
- the ports are arranged in an orderly manner, which facilitates orderly connection and facilitates cable arrangement.
- the connection ports of the phase-shifting circuit on the second phase-shifting circuit board 102 can also be distributed at both ends; so that they are connected in order.
- pads 503 are provided at the combination input port 501 and the combination output port 502 where the combination circuit 5 is connected to the second phase-shifting circuit board 102 .
- the pads 503 can be arranged in a row, so that they are connected in an orderly manner, which is convenient for soldering.
- pads 503 may also be provided at each connection port of the phase shifting circuit 4 on the second phase shifting circuit board 102 for soldering connection with cables.
- the first phase-shifting circuit board 101 is connected to the first supporting board 201 .
- the first support plate 201 can support and fix the first phase-shifting circuit board 101 , so as to facilitate the support and installation of the first phase-shifting circuit board 101 .
- the two ends of the first support plate 201 are respectively provided with cable clips 7 , and the cable clips 7 are provided with cable clip slots 701 .
- the cables connected to the connecting ports of the combiner circuit 5 can be fixed and supported by the cable slot 701 on the line card 7, so that the cables can be arranged in an orderly manner.
- first phase-shifting circuit board 101 and the first support plate 201 can be fixedly connected by rivets, etc., and the specific connection method can also be other, which is not limited.
- the second phase-shifting circuit board 102 is connected to the second supporting board 202 .
- the second support plate 202 can support and fix the second phase-shifting circuit board 102 , so as to facilitate the support and installation of the second phase-shifting circuit board 102 .
- the two ends of the second support plate 202 can also be respectively provided with cable clips 7 for fixing the cables; the specific arrangement structure can be similar to the arrangement of the cable clips 7 on the first support plate 201 and will not be repeated here.
- a stepped portion 2011 is provided at the end of the first support plate 201 , and the line card 7 is disposed on the stepped portion 2011 .
- the end of the first support plate 201 can be integrally bent to form a stepped portion 2011, so that the surface of the end portion is lower than the surface of the middle portion, so that when the line card 7 is installed on the stepped portion 2011, the upper surface of the line card 7 can be aligned with the stepped portion 2011.
- the surface of the first phase-shifting circuit board 101 is even, which is convenient for fixing the cable on the line card 7 .
- the upper surface and the lower surface of the line card 7 are respectively provided with a cable card slot 701, and the first support plate 201 is provided with an opening 2013 corresponding to the cable card slot 701 on the lower surface of the line card 7 .
- the cable slot 701 on the lower surface of the line card 7 corresponds to pass through the opening 2013 on the first support plate 201 for fixing the cable.
- the lower surface of the line card 7 is provided with a mounting buckle 702
- the first support plate 201 is provided with a mounting groove 2012 matching the mounting buckle 702 .
- the installation buckle 702 on the line card 7 cooperates with the installation slot 2012 on the first support plate 201 to realize the connection and fixation of the line card 7 and the first support plate 201 .
- FIG. 5 only shows the structural arrangement of the opening 2013 and the installation slot 2012 , and does not limit the specific location and quantity of the opening 2013 and the installation slot 2012 .
- phase-shifting circuit boards are stacked up and down, and two adjacent phase-shifting circuit boards are connected by a support member 6 .
- the phase-shifting components adopt a stacked structure, which is convenient for cable setting and connection, and has a compact structure, which is conducive to reducing the space occupied by installation.
- mounting holes 601 are respectively provided on the top and bottom of the support member 6 , and the phase-shifting circuit board is detachably connected to the support member 6 at the mounting holes 601 ; it can be detachably connected by screws or the like.
- a matching positioning structure is also provided between the support member 6 and the phase-shifting circuit board.
- the support member 6 can be in the shape of an I, and the upper and lower surfaces are used to connect with the adjacent phase-shifting circuit board; the support member 6 can also have other structures, which are not specifically limited.
- Positioning posts 602 can be provided on the top and bottom of the support member 6 respectively, and matching through holes can be provided on the phase-shifting circuit board, and the positioning can be realized through the insertion of the positioning posts 602 and the through holes, which is convenient for installation.
- the slide assembly 3 includes a coupling slide 301 and a rotating shaft 302, and the rotating shaft 302 passes through one end of the coupling slide 301 and the phase shifter in turn.
- a circuit board, one end of the rotating shaft 302 passing through the phase-shifting circuit board is detachably connected with a fastener, the coupling slide 301 is rotatably connected to the rotating shaft 302, and the rotating shaft 302 is connected to the phase-shifting circuit
- the plates are integrally fixedly connected by said fasteners.
- One end of the rotating shaft 302 passing through the phase-shifting circuit board is connected with the fastener to realize integral connection with the phase-shifting circuit board, that is, the rotating shaft 302 is non-rotatably connected with respect to the phase-shifting circuit board.
- a coupling circuit is provided on the coupling slide 301 , the coupling slide 301 is rotatable relative to the rotating shaft 302 , and the phase shift adjustment can be realized by the rotation of the coupling slide 301 .
- the phase-shifting circuit board is provided with an assembly hole 2014 through which the rotating shaft 302 passes.
- the mounting hole 2014 is a non-circular hole 3041 , and the part corresponding to the rotating shaft 302 and the phase-shifting circuit board matches the non-circular hole 3041 .
- the side wall of the rotating shaft 302 can be provided with a tangent surface 3022, so that the part of the rotating shaft 302 is a non-circular section, which is used to match the assembly hole 2014 on the phase-shifting circuit board, so that the relative phase-shifting circuit board of the rotating shaft 302 can be realized. Cannot be turned.
- an assembly hole 2014 can also be provided corresponding to the rotation shaft 302, and the assembly hole 2014 is a non-circular hole 3041, which is used to match the rotation shaft 302 to realize the rotation shaft 302 Non-rotatable connection to the support plate.
- the mounting hole 2014 may be a D-shaped hole.
- one end of the rotating shaft 302 passing through the coupling slide 301 is provided with a blocking platform 3021, and the cross-sectional size of the blocking platform 3021 is larger than that of the rotating shaft 302; one end of the rotating shaft 302 is provided with a blocking platform 3021, and the other end passes through After coupling the sliding piece 301 and the phase-shifting circuit board, it is connected with the fastener.
- the blocking platform 3021 is used to prevent the rotating shaft 302 from sliding out from the coupling slide 301 and the phase-shifting circuit board and falling off.
- the blocking platform 3021 is provided with a fool-proof structure.
- the fool-proof structure is used to mark the correct matching position of the rotating shaft 302 and the assembly hole 2014, so that the rotating shaft 302 can pass through the assembly hole 2014 smoothly and realize the smooth connection with the phase-shifting circuit board.
- the fool-proof structure can be the shape identification of the blocking platform 3021, that is, the blocking platform 3021 can be set as a non-centrosymmetric structure for marking the assembly direction; the fool-proof structure can also be in other forms, which are not specifically limited.
- the fastener is a fastening nut 303 .
- the fastening nut 303 has a threaded hole 3031; the position where the rotating shaft 302 passes through the phase-shifting circuit board is provided with an external thread 3023 matching the fastening nut 303; the rotating shaft 302 and the fastening nut 303 can be connected by threads.
- the fastening nut 303 is provided with an elastic arm 3032 on one side facing the phase-shifting circuit board.
- the elastic arm 3032 is an elastic structure. When the fastening nut 303 is connected to the rotating shaft 302 , the elastic arm 3032 can be in contact with the phase-shifting circuit board or the support plate to realize the fast connection of the rotating shaft 302 .
- a plurality of elastic arms 3032 can be arranged on the fastening nut 303 in the circumferential direction, and the specific number of elastic arms 3032 is not limited.
- a positioning structure is provided between the fastening nut 303 and the phase-shifting circuit board; referring to Fig. 5 and Fig. 9, the positioning structure includes The nut 303 faces the protrusion 3033 on the side of the phase-shifting circuit board, and the positioning hole 2015 provided on the first support plate 201 matched with the protrusion 3033 .
- the protrusion 3033 on the fastening nut 303 can be inserted into the positioning hole 2015 on the first support plate 201 correspondingly, and the position of the fastening nut 303 can be limited to ensure a firm connection sex.
- multiple positioning holes 2015 are provided, and the multiple positioning holes 2015 are distributed in a circle.
- the fastening nut 303 has multiple positioning positions along the circumferential direction, which improves installation flexibility and applicability. Further, the connection between the fastening nut 303 and the second support plate 202 is similar to that of the first support plate 201 , and will not be repeated here.
- the slider assembly 3 also includes a fixed clip 304
- the coupling slider 301 is provided with a fixed clip 304 on the side away from the phase-shifting circuit board
- the fixed clip 304 is rotatably connected to the rotating shaft 302 at the first end
- the second end is provided with a fixed clip 304.
- the first end of the fixing clip 304 can be provided with a round hole 3041 through which the rotating shaft 302 can rotate, so as to realize the rotating connection with the rotating shaft 302 .
- a supporting structure is provided between the fixing clip 304 and the coupling slide 301 .
- the support structure is used to exert a supporting force on the coupling slide 301 towards the phase-shifting circuit board, so that the gap between the coupling slide 301 and the phase-shifting circuit board remains stable, and improves the phase-shifting stability.
- the support structure includes an elastic member 3042 disposed on the fixing clip 304; In between, an elastic supporting force is applied to the coupling slide 301 .
- the elastic member 3042 has elasticity, and can be a structure such as an elastic block, an elastic sheet, or an elastic bump, and is not specifically limited.
- FIG. 2 and FIG. 11 mainly show the arrangement forms of the circular hole 3041 on the fixing clip 304, the slot and the supporting structure, and do not limit other structures.
- this embodiment provides a base station antenna
- the base station antenna includes the multi-frequency fusion phase-shift feeding network described in any one of the above embodiments, and also includes a plurality of radiation oscillators, multiple Each of the radiation oscillators is connected to the combining output ports 502 of the plurality of combining circuits 5 in a one-to-one correspondence.
- this embodiment is based on the fact that the existing phase shifters and combiners are independently placed inside the base station antenna, which occupies a large space inside the base station antenna and has a complex layout. At the same time, various frequency bands are connected to each other through cable terminals Connection, many solder joints, high risk of intermodulation, and poor index consistency.
- a multi-frequency fusion independent phase-shifting feed network integrating the phase-shifting circuit and the combining circuit 5 is provided.
- the phase-shifting feed network includes: a phase-shifting circuit, a combining circuit 5, a coupling circuit, a supporting fixed structure, and a rotating structure; the rotation of the rotating structure drives the coupling circuit to rotate around the rotating shaft 302 close to the phase-shifting circuit, realizing independent phase-shifting in different frequency bands At the same time, different frequency bands are fused through cable connection to achieve phase-shift and combined output, and achieve multi-frequency independent phase-shift and fusion output.
- This embodiment has good phase change stability, and has the advantages of simple structure, low cost, good consistency and easy assembly.
- the phase-shifting circuit, the combining circuit 5 and the coupling circuit include: the phase-shifting circuit board is a PCB board, and the PCB board is fixed on a sheet metal support plate; the combining circuit 5 is integrated on a phase-shifting circuit board; the coupling circuit is designed On the coupling slide 301.
- the supporting and fixing structure and the rotating structure include a fixing clip 304 , a first support plate 201 , a second support plate 202 , a high temperature resistant backstop rivet, a wire clamp 7 , a rotating shaft 302 ie a fixing screw and a fastening nut 303 .
- the sliding piece is close to the PCB board under the limiting action of the fixing clip 304 and the fixing screw, and the fixing screw passes through the fixing clip 304, the sliding piece, the PCB board and the sheet metal support plate, and has a limit feature and can be fixed with the sheet metal support plate.
- Cooperate with the fastening nut 303 through the screw thread, and the fixing clip 304 and the slide plate are rotatably connected with the fixing screw.
- the fastening nut 303 has a standard nut feature, that is, a threaded hole 3031, and can use a torque tool to realize automatic assembly.
- the tightening nut 303 is equipped with a nut top dead position, that is, a bump 3033, which can achieve the top dead effect after being fixed with the above-mentioned fixing screw, and has the characteristics of the elastic arm 3032 at the same time.
- the tightening force ensures that the sliding piece PCB and the PCB board between the fastening nut 303 and the fixing screw are closely attached.
- the sheet metal support plate has a fastening nut 303 positioning hole 2015, which can ensure that the nut is clamped in the positioning hole 2015 after being fixed to prevent loosening.
- the sheet metal support plate has a bending feature and a fixing hole feature of the line card 7, and the bending feature is consistent with the thickness of the line card 7, which can ensure that the upper surface of the line card 7 can be flush with the lower surface of the main PCB substrate after the line card 7 is fixed.
- the first PCB board and the second PCB board are provided with a plurality of uniformly distributed arc-shaped slow-wave microstrip line structures, that is, phase-shifting circuits, and the arc-shaped slow-wave microstrip line structures have the same center of circle.
- the combining circuit 5 is arranged on the first PCB, and the two ends of the arc-shaped slow-wave microstrip line structure are connected to it through the microstrip circuit.
- the first PCB board and the second PCB board are connected by several coaxial cables.
- the first phase-shifting network is that the slide PCB sticks to the first PCB under the action of the fixing clip 304 and rotates around the fixing screw, and the signal passes through the slide PCB and the arc-shaped slow-wave microstrip line structure to achieve specific power distribution. and phase changes.
- the second phase-shifting network is that the slide PCB is closely attached to the second PCB under the action of the fixing clip 304 , and realizes independent phase-shifting in the same manner as the first phase-shifting network.
- the first phase-shifting network and the combining network are on the same main PCB and connected through a microstrip line; the second phase-shifting network and the combining network are connected through a cable, and an independent phase-shifting network with different frequency fusion is realized through the cable output.
- the line card 7 has a buckle feature and is fixed on the above-mentioned sheet metal support plate. After the line card 7 is fixed, it can support the solder joints of the PCB substrate, so as to ensure that there is no stress between the cable and the PCB after welding.
- the first phase-shifting network and the second phase-shifting network are fixedly supported by a plurality of I-shaped supports 6 .
- the phase-shifting and combining network is integrated on the first PCB, which greatly improves the integration of the feeder circuit.
- the entire feeder network makes the volume smaller, and the performance consistency is better. In the case of a small communication base station volume, the communication efficiency is improved at the same time.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
Claims (10)
- 一种多频融合移相馈电网络,包括多个移相组件,每个所述移相组件包括移相电路板和转动连接于所述移相电路板的滑片组件,所述移相电路板上与所述滑片组件对应部位设有移相电路,多个所述移相电路板分为第一移相电路板和第二移相电路板,所述第一移相电路板上设有合路电路,所述第一移相电路板上的所述移相电路和所述第二移相电路板上的所述移相电路的移相输出端口分别连接于所述合路电路的合路输入端口。A multi-frequency fusion phase-shifting feed network, including a plurality of phase-shifting components, each of the phase-shifting components includes a phase-shifting circuit board and a slide assembly that is rotatably connected to the phase-shifting circuit board, and the phase-shifting circuit A phase-shifting circuit is provided on the board corresponding to the slider assembly, and a plurality of the phase-shifting circuit boards are divided into a first phase-shifting circuit board and a second phase-shifting circuit board, and the first phase-shifting circuit board is provided with There is a combining circuit, and the phase-shifting output ports of the phase-shifting circuit on the first phase-shifting circuit board and the phase-shifting circuit on the second phase-shifting circuit board are connected to the ports of the combining circuit respectively. combined input port.
- 根据权利要求1所述的多频融合移相馈电网络,其中所述合路电路与所述第一移相电路板上的移相输出端口之间通过微带线连接,所述合路电路与所述第二移相电路板上的移相输出端口之间通过线缆相连。The multi-frequency fusion phase-shifting feed network according to claim 1, wherein the combining circuit is connected to the phase-shifting output port on the first phase-shifting circuit board through a microstrip line, and the combining circuit It is connected with the phase-shift output port on the second phase-shift circuit board through a cable.
- 根据权利要求1所述的多频融合移相馈电网络,其中所述合路电路分布于所述第一移相电路板的两端,在所述第一移相电路板的任一端,所述合路电路与所述第二移相电路板连接的合路输入端口以及合路输出端口均设于所述移相电路板的端部。The multi-frequency fusion phase-shifting feed network according to claim 1, wherein the combining circuit is distributed at both ends of the first phase-shifting circuit board, and at either end of the first phase-shifting circuit board, the Both the combination input port and the combination output port of the combination circuit connected to the second phase-shifting circuit board are arranged at the end of the phase-shifting circuit board.
- 根据权利要求1-3中任一项所述的多频融合移相馈电网络,其中所述第一移相电路板连接于第一支撑板,所述第一支撑板的两端还分别设有线卡,所述线卡上设有线缆卡槽。The multi-frequency fusion phase-shifting feed network according to any one of claims 1-3, wherein the first phase-shifting circuit board is connected to the first support plate, and the two ends of the first support plate are respectively provided with The cable card is provided with a cable card slot.
- 根据权利要求4所述的多频融合移相馈电网络,其中所述第一支撑板的端部设有台阶部位,所述线卡设于所述台阶部位。The multi-frequency fusion phase-shift feeding network according to claim 4, wherein a step is provided at the end of the first support plate, and the line clamp is arranged at the step.
- 根据权利要求1-3中任一项所述的多频融合移相馈电网络,其中多个所述移相电路板上下堆叠设置,且相邻两个所述移相电路板之间通过支撑件相连。The multi-frequency fusion phase-shifting feed network according to any one of claims 1-3, wherein a plurality of said phase-shifting circuit boards are stacked up and down, and two adjacent phase-shifting circuit boards are supported by pieces are connected.
- 根据权利要求4所述的多频融合移相馈电网络,其中所述滑片组件包括耦合滑片和转轴,所述转轴依次穿过所述耦合滑片的一端和所述移相电路板,所述转轴穿出所述移相电路板的一端可拆卸连接有紧固件,所述耦合滑片可转动连接于所述转轴,所述转轴与所述移相电路板通过所述紧固件一体固定连接。The multi-frequency fusion phase-shifting feed network according to claim 4, wherein the slider assembly includes a coupling slider and a rotating shaft, and the rotating shaft passes through one end of the coupling slider and the phase-shifting circuit board sequentially, One end of the rotating shaft passing through the phase-shifting circuit board is detachably connected with a fastener, the coupling slide is rotatably connected to the rotating shaft, and the rotating shaft and the phase-shifting circuit board pass through the fastener One fixed connection.
- 根据权利要求7所述的多频融合移相馈电网络,其中所述紧固件 为紧固螺母,所述转轴穿出所述移相电路板的部位设有与所述紧固螺母匹配的外螺纹;且所述紧固螺母朝向所述移相电路板的一侧设有弹性臂。The multi-frequency fusion phase-shifting feed network according to claim 7, wherein the fastener is a fastening nut, and the part where the rotating shaft passes through the phase-shifting circuit board is provided with a screw that matches the fastening nut. an external thread; and an elastic arm is provided on a side of the fastening nut facing the phase-shifting circuit board.
- 根据权利要求8所述的多频融合移相馈电网络,其中所述紧固螺母与所述移相电路板之间还设有定位结构;所述定位结构包括设于所述紧固螺母朝向所述移相电路板一侧的凸块,和设于所述第一支撑板上的与所述凸块匹配的定位孔。The multi-frequency fusion phase-shifting feed network according to claim 8, wherein a positioning structure is also provided between the fastening nut and the phase-shifting circuit board; The bump on one side of the phase-shifting circuit board, and the positioning hole provided on the first supporting board to match the bump.
- 一种基站天线,包括上述权利要求1-9中任一项所述的多频融合移相馈电网络,还包括多个辐射振子,多个所述辐射振子与多个所述合路电路的合路输出端口一一对应相连。A base station antenna, comprising the multi-frequency fusion phase-shifting feed network described in any one of claims 1-9 above, and further comprising a plurality of radiation oscillators, a plurality of said radiation oscillators and a plurality of said combining circuits The combined output ports are connected in one-to-one correspondence.
Priority Applications (2)
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EP22918146.6A EP4325665A1 (en) | 2022-01-04 | 2022-07-01 | Multi-frequency fusion phase-shifting feed network and base station antenna |
MX2023015558A MX2023015558A (en) | 2022-01-04 | 2022-07-01 | Multi-frequency fusion phase-shifting feed network and base station antenna. |
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CN202210002185.4A CN114447611A (en) | 2022-01-04 | 2022-01-04 | Multi-frequency fusion phase-shifting feed network and base station antenna |
CN202210002185.4 | 2022-01-04 |
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WO2023130690A1 true WO2023130690A1 (en) | 2023-07-13 |
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PCT/CN2022/103260 WO2023130690A1 (en) | 2022-01-04 | 2022-07-01 | Multi-frequency fusion phase-shifting feed network and base station antenna |
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EP (1) | EP4325665A1 (en) |
CN (1) | CN114447611A (en) |
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CN114447611A (en) * | 2022-01-04 | 2022-05-06 | 中信科移动通信技术股份有限公司 | Multi-frequency fusion phase-shifting feed network and base station antenna |
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US20180108962A1 (en) * | 2015-06-15 | 2018-04-19 | Kmw Inc. | Multi-line phase shifter of multi-band mobile communication base station antenna |
CN110085953A (en) * | 2019-05-28 | 2019-08-02 | 京信通信技术(广州)有限公司 | Composite network microwave device and antenna |
CN110661102A (en) * | 2019-09-29 | 2020-01-07 | 华南理工大学 | Phase shifting device and base station antenna |
CN111585025A (en) * | 2020-05-20 | 2020-08-25 | 武汉虹信通信技术有限责任公司 | Phase shifter and base station antenna |
CN113437455A (en) * | 2021-06-08 | 2021-09-24 | 华南理工大学 | Frequency division phase shifter, feed network and base station antenna |
CN114447611A (en) * | 2022-01-04 | 2022-05-06 | 中信科移动通信技术股份有限公司 | Multi-frequency fusion phase-shifting feed network and base station antenna |
-
2022
- 2022-01-04 CN CN202210002185.4A patent/CN114447611A/en active Pending
- 2022-07-01 WO PCT/CN2022/103260 patent/WO2023130690A1/en active Application Filing
- 2022-07-01 EP EP22918146.6A patent/EP4325665A1/en active Pending
- 2022-07-01 MX MX2023015558A patent/MX2023015558A/en unknown
Patent Citations (6)
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US20180108962A1 (en) * | 2015-06-15 | 2018-04-19 | Kmw Inc. | Multi-line phase shifter of multi-band mobile communication base station antenna |
CN110085953A (en) * | 2019-05-28 | 2019-08-02 | 京信通信技术(广州)有限公司 | Composite network microwave device and antenna |
CN110661102A (en) * | 2019-09-29 | 2020-01-07 | 华南理工大学 | Phase shifting device and base station antenna |
CN111585025A (en) * | 2020-05-20 | 2020-08-25 | 武汉虹信通信技术有限责任公司 | Phase shifter and base station antenna |
CN113437455A (en) * | 2021-06-08 | 2021-09-24 | 华南理工大学 | Frequency division phase shifter, feed network and base station antenna |
CN114447611A (en) * | 2022-01-04 | 2022-05-06 | 中信科移动通信技术股份有限公司 | Multi-frequency fusion phase-shifting feed network and base station antenna |
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CN114447611A (en) | 2022-05-06 |
EP4325665A1 (en) | 2024-02-21 |
MX2023015558A (en) | 2024-01-24 |
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