WO2018196713A1 - Déphaseur stéréo spatial pour antenne de station de base, et ensemble déphaseur - Google Patents

Déphaseur stéréo spatial pour antenne de station de base, et ensemble déphaseur Download PDF

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Publication number
WO2018196713A1
WO2018196713A1 PCT/CN2018/084083 CN2018084083W WO2018196713A1 WO 2018196713 A1 WO2018196713 A1 WO 2018196713A1 CN 2018084083 W CN2018084083 W CN 2018084083W WO 2018196713 A1 WO2018196713 A1 WO 2018196713A1
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WIPO (PCT)
Prior art keywords
conductor
disposed
cavity
phase shifter
conductor cavity
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PCT/CN2018/084083
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English (en)
Chinese (zh)
Inventor
亚历山德罗维奇 斯莱德科夫维克托
李梓萌
Original Assignee
广州司南天线设计研究所有限公司
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Publication of WO2018196713A1 publication Critical patent/WO2018196713A1/fr

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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
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/18—Phase-shifters
    • 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
    • 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 invention relates to the field of communication device technologies, and in particular, to a spatial stereo phase shifter and a spatial stereo phase shifter component for a base station antenna.
  • the base station ESC antenna realizes the beam downtilt adjustment of the base station antenna through the phase shifter in the beamforming network, and has the advantages of large adjustable range of downtilt angle, high precision, good control of the pattern, strong anti-interference ability, and easy control. Therefore, the phase shifter is an essential component of the base station antenna, and the device adjusts the downtilt angle of the antenna beam by changing the relative phase between the antenna elements, thereby facilitating the optimization of the communication network.
  • the beamforming network design of existing base station antennas uses cables to connect the sub-phase shifter units or use cables as part of the power splitter. This allows the entire feed network to contain cables of various lengths, which must be guaranteed during processing. The length of each cable is accurate. Workers must be carefully welded as required during welding. Otherwise, the consistency of the antenna pattern will not be guaranteed. Secondly, the lengths of different cables are processed, sorted, managed, and these cables are also installed during production. It is extremely complicated and has a lot of solder joints. Each solder joint is an unstable factor for the whole machine. Excessive solder joints will greatly increase the influencing factors of the third-order intermodulation of the antenna, increase the cost of repair and increase the production cost; The cables used in the existing antennas are all 141 cables.
  • the present invention provides a spatial stereo phase shifter for a base station antenna, which has high reliability, high repeatability, low insertion loss and high gain, and is designed not to use a cable.
  • the cable loss is reduced.
  • the appearance of the spatial stereo phase shifter makes the antenna production no longer rely on large-scale labor, multiplying the production efficiency, realizing the automation of the antenna production, and changing the traditional antenna enterprises in the industry requires a large amount of labor. Production method.
  • a spatial stereo phase shifter for a base station antenna comprising a conductor housing with a multilayer conductor cavity and a feed network component disposed in each layer of the conductor cavity, the feed network component comprising a base station for adjusting a sub-phase shifter component of the antenna beam direction and an insulating component for supporting the sub-phase shifter component; the spatial stereo phase shifter further comprising a sub-phase shifter component respectively disposed in the adjacent two-layer conductor cavity Transmission line.
  • the transmission line is disposed within the conductor housing.
  • the sub-phase shifter assembly includes a feed network coupled to the transmission line and a dielectric component assembly slidably coupled to the feed network, the dielectric component assembly disposed within the conductor cavity of the layer being disposed relative to the conductive component A feed network within the body cavity slides back and forth to change the contact area of the dielectric component assembly and the feed network; the feed network is a metal conductor stripline or a printed circuit board with microstrip lines.
  • each layer of the conductor cavity is integrally formed, and each layer of the conductor cavity is provided with a cavity for moving the feeder circuit component into or out of the conductor cavity, and the conductor shell is superposed and assembled by the multilayer conductor conductor cavity. Or formed by integrally forming a metal conductor profile.
  • the insulating component is an insulating dielectric substrate
  • the insulating dielectric substrate disposed in the conductor cavity of the layer is composed of an insulating dielectric substrate A and an insulating dielectric substrate B disposed in the conductor cavity of the layer.
  • the insulating dielectric substrate A and the insulating dielectric substrate B in the conductor cavity of the layer are respectively disposed above and below the feed network provided in the conductor cavity of the layer.
  • the dielectric component assembly disposed in the conductor cavity of the layer is further fixedly connected with the pull rod, and the insulating component disposed in the conductor cavity of the layer is fixedly connected with the feed network disposed in the conductor cavity of the layer, and is disposed at the The insulating component within the layer conductor cavity is fixedly coupled to the conductor housing.
  • the multilayer conductor cavity is a two-layer conductor cavity, and the two conductor cavities are respectively an upper conductor cavity and a lower conductor cavity, and a feeding network disposed in the upper conductor cavity feeds the upper layer
  • the network, the feed network disposed in the lower conductor cavity is a lower feed network.
  • the feed network disposed within each of the conductor cavities includes a plurality of ports in which the metal conductor strips are connected to the metal conductor strips.
  • the metal conductor piece and the plurality of ports connected to the metal conductor piece can be integrally formed.
  • the lower layer feed network includes a first input port and N first output ports;
  • the upper layer feed network includes N three port networks, each of the three port networks includes two second output ports and one a second input port connected to the output port;
  • the transmission line is at least one, and each of the first output ports is connected to a second input port by a transmission line; wherein N is a positive integer.
  • the top of the conductor housing is provided with a window communicating with the upper conductor cavity
  • the window includes a window A and N windows B
  • each window B includes a second output port disposed on a three-port network. a first window directly above, a second window disposed directly above the second input port of the three-port network, and a third window disposed directly above the other second output port of the three-port network; wherein, each window B
  • the second window is further disposed directly above a transmission line connected to the second input port of the three-port network and the first output port connected to the transmission line
  • the conductor housing further includes a conductor cavity disposed in each layer of the conductor cavity An open conductor spacer, the conductor partition disposed in each conductor cavity divides the layer conductor cavity into a left conductor cavity and a right conductor cavity; and an insulating dielectric lining disposed in each conductor cavity a protrusion is fixedly disposed on one side of the bottom, and the protrusion is disposed in an opening of the
  • the conductor spacer includes an upper conductor spacer disposed in the upper conductor cavity and a lower conductor spacer disposed in the lower conductor cavity, and the upper conductor spacer partitions the upper conductor cavity into the upper upper conductor cavity Body and upper right conductor cavity, the lower conductor partition partitions the lower conductor cavity into a lower left conductor cavity and a lower right conductor cavity; a bottom hole is provided at the top of the lower right conductor cavity, and one end of the transmission line is disposed in the lower right conductor cavity The other end extends through the through hole into the upper right conductor cavity.
  • the lower conductor spacer is provided with a first opening and N second openings
  • the upper conductor spacer is provided with N third openings, N fourth openings and N fifth openings
  • first The input port extends from the lower left conductor cavity through the first opening into the lower right conductor cavity
  • each of the first output ports extends from the lower left conductor cavity through a second opening into the lower right conductor cavity
  • each three A second output port of the port network extends from the upper left conductor cavity through a third opening into the upper right conductor cavity
  • the other second output port of the three port network passes through a fifth from the upper left conductor cavity
  • the opening extends into the upper right conductor cavity
  • the second input port of the three port network extends from the upper left conductor cavity through a fourth opening into the upper right conductor cavity.
  • the N is six.
  • the projection of the first output port and the second input port connected by a transmission line in the horizontal direction is staggered, and the transmission line is respectively connected to the first output port and the second input port.
  • the conductor housing further includes a guiding boss fixedly disposed in each of the conductor cavities, and the pull rod disposed in the conductor cavity encloses a guiding member and the dielectric component assembly disposed in the conductor cavity The guide slots that match the bosses.
  • the guiding bosses disposed in each of the conductor cavities are upper and lower, and the tie rods disposed in the conductor cavities of the layers are disposed on the left guiding walls and the left side wall and the top of the conductor cavities The body enclosed by the wall and the bottom plate.
  • the conductor housing is further provided with a strip window, and the anchor rod in the conductor cavity is fixedly connected with an anchor, and the anchor disposed in the conductor cavity is disposed through the strip window and can be moved back and forth along the strip window
  • the anchor is disposed in the upper conductor cavity, and the anchor disposed in the upper conductor cavity and the pull rod disposed in the lower conductor cavity are connected by a first connecting portion; or the anchor is disposed in the lower conductor cavity
  • the anchor disposed in the lower conductor cavity and the pull rod disposed in the upper conductor cavity are connected by a first connecting portion; or the upper and lower conductor cavities are respectively provided with an anchor, and the anchor disposed in the upper conductor cavity
  • the anchors disposed in the lower conductor cavity are connected by a first connection.
  • the dielectric component assembly disposed in each of the conductor cavities includes at least one dielectric component, and each of the dielectric components disposed in the conductor cavity of the layer is respectively fixedly connected to a pull rod disposed in the conductor cavity of the layer, each of each The dielectric member is provided with at least two notches for adjusting the contact area of the feed network disposed in the conductor cavity of the layer with the dielectric member; each dielectric member is integrally formed by injection molding.
  • the dielectric constant value of the dielectric component assembly disposed in each layer of the cavity is set to the phase of the feed network disposed in each layer cavity when the dielectric component components disposed in the conductor cavities of the respective layers are synchronously moved.
  • the dielectric component components disposed in each of the conductor cavities are disposed on the left side of the feed network component, and the insulating dielectric substrate and the dielectric component components disposed in each of the conductor cavities are disposed in the left conductor cavity.
  • the insulating medium substrate is made of one or more of polypropylene, polyethylene, polytetrafluoroethylene, TPX (poly 4-methylpentene-1).
  • the insulating medium substrate is made of a foamed material.
  • each layer of the conductor cavity is a rectangular parallelepiped conductor cavity with a cavity at both ends, and each three-port network is arranged from front to back in order, and the tie rod and the guide boss are parallel to the long side of the rectangular conductor cavity. .
  • the phase shifter assembly includes the two spatial stereo phase shifters connected to each other as described in the above, and the two spatial stereo phase shifters are arranged side by side in a mirror image.
  • the conductor housings of the two spatial stereo phase shifters are integrally formed to form the outer casing of the phase shifter assembly.
  • the phase shifter assembly further includes a second connection portion that is fixedly coupled to the anchors of the upper portions of the two spatial stereo phase shifters, respectively.
  • the present invention has the following beneficial effects:
  • the present invention places a feed network component into each conductor cavity, and uses a transmission line to connect a feed network component disposed in an adjacent two-layer conductor cavity to form a spatial three-dimensional feed network, which is originally in the same layer.
  • the feed network is divided into two parts and placed in a plurality of identical superimposed conductor cavities to reduce the width of the entire phase shifter.
  • the conductor cavity is two layers, the width of the entire phase shifter is reduced by nearly 50%, and the thickness of the phase shifter is increased by only 7 mm.
  • the spatial stereo phase shifter is used for the base station antenna, since we have double space To enable us to have a space-integrated cable in the feeder network, use strip lines, etc. instead of cables, and design a highly integrated beam-forming network without cables. This highly integrated beamforming network will minimize our antennas.
  • the solder joints improve the efficiency and consistency of the antenna production, reduce the size of the antenna by nearly 50%, save materials, reduce costs, and facilitate transportation and flexible deployment.
  • the insertion loss of the metal strip line is smaller than the insertion loss of the cable.
  • a highly integrated metal strip line feed network is used in the base station antenna design, the antenna vibrator and phase shifter, phase shifter Cable connections are not used between the internal components, so antennas designed using highly integrated metal stripline feed networks have lower insertion loss and higher gain than existing antennas that use cables to connect components. This design allows us to develop the antenna with the best gain.
  • a highly integrated metal strip line feed network when applied to a base station antenna, only needs to solder its main feed line and input port, the connection port between the vibrator and the feed network, therefore, using the present technology Antennas, the number of solder joints will be much smaller than the number of solder joints of competitor antennas, reducing the chance of intermodulation during production, improving the intermodulation pass-through rate during antenna production, and the consistency of standing waves is also good.
  • the feed network can be manufactured by metal stamping process, which improves production efficiency and further reduces production costs.
  • the conventional array antenna adjustable phase shifting device supports a separate conductor cavity on the back side of the reflector by a support column, and a phase shifting device is installed in the conductor cavity, and the components of the conventional array antenna are connected by cables.
  • the U-shaped reflector and the phase shifter conductor cavity may be integrally formed, and the reflector (the surface of the conductor housing) shares a cavity wall with the phase shifter conductor cavity.
  • the reflector and the phase shifter are independent components, the phase shifter is supported on the reflector, and the transmission mechanism of the phase shifter is also higher than the cavity of the phase shifter, thus increasing The height of the antenna.
  • phase shifting device and the strip line of the design are directly installed in the conductor cavity, and the transmission mechanism is buried in the reflector and the phase shifter cavity, so that the overall thickness of the antenna can be well reduced.
  • Our antenna is thinner than the competitor's antenna thickness, so that the size and volume of the entire antenna will be smaller, the wind resistance will be reduced, and the operator's cost of building a station will be reduced accordingly.
  • the new design allows us to design antennas with different vertical plane patterns according to the customer's needs, and only needs to change the structure of the metal conductor strip lines.
  • the first layer feed network provides the best gain and the second layer feed network provides low sidelobe suppression and zero fill.
  • the feed network will have N-1 sub-phase shifters. For example, if a base station antenna with 12 vibrators has the best pattern and gain, its feed network will contain 11 sub-phase shifters, while competitors typically only contain 1-5 sub-phase shifters.
  • the antenna design of the base station antenna enterprise now uses a large number of coaxial cables, which makes the antenna have too many solder joints and the wiring is very complicated. Therefore, the production process of the base station antenna requires a large amount of It is very difficult for workers to achieve automation. Due to the highly integrated nature of the design, the products designed using this technology can be fully automated in the production process. All welding and assembly will be completely realized by the robot. As a result, the production efficiency of the antenna will be It is 5-8 times that of traditional antenna enterprises. Due to its highly integrated features, the antenna consistency produced will be greatly improved and the defect rate will be reduced.
  • the phase shifting mechanism has a simple structure, is easy to install and maintain, and can significantly improve production efficiency.
  • FIG. 1 is a partial perspective structural view of a spatial stereo phase shifter of the present invention
  • Figure 2 is an enlarged schematic view showing a portion of the structure of Figure 1 of the present invention.
  • FIG. 3 is a partial structural schematic view of a spatial stereo phase shifter of the present invention.
  • Figure 4 is an enlarged schematic view showing a portion of the structure of Figure 3 of the present invention.
  • Figure 5 is a schematic view showing the structure of the dielectric component assembly and the tie rod of the present invention.
  • Figure 6 is an enlarged schematic view showing a portion of the structure of Figure 5 of the present invention.
  • Figure 7 is an enlarged schematic view showing the structure of another part of Figure 5 of the present invention.
  • Figure 8 is an enlarged schematic view showing another part of the structure of Figure 5 of the present invention.
  • FIG. 9 is an exploded view of the feeder network component of the present invention.
  • Figure 10 is an enlarged schematic view of a portion of the structure of Figure 9 of the present invention (a schematic view of a portion of a feed network component disposed in an upper conductor cavity);
  • Figure 11 is an enlarged schematic view showing another part of the structure of Figure 9 of the present invention (a schematic structural view of a portion of a feed network component disposed in a lower conductor cavity);
  • Figure 12 is a schematic structural view of a transmission line of the present invention.
  • Figure 13 is a schematic structural view of a phase shifter of the present invention.
  • Figure 14 is a partial structural view of a phase shifter of the present invention.
  • Figure 15 is a partial structural view of the phase shifting mechanism of the present invention.
  • 16 is a vertical plane pattern when the spatial stereo phase shifter of the present invention is applied to a base station antenna when the power is tilted down by 0 degrees;
  • Figure 17 is a vertical plan view of the spatial stereo phase shifter of the present invention when it is electrically tilted 12 degrees when applied to a base station antenna.
  • a spatial stereo phase shifter for a base station antenna includes a conductor housing 100 with a multilayer conductor cavity and a feed network component disposed in each conductor cavity.
  • the feed network component includes a sub-phase shifter assembly for adjusting a base station antenna beam direction and an insulation assembly 233 for supporting the sub-phase shifter assembly;
  • the spatial stereo phase shifter further includes two adjacent layers A transmission line 215 to which the sub-phase shifter assemblies are respectively connected in the conductor cavity. Transmission line 215 connects the feeder network components in two adjacent conductor cavities to form a complete spatial three-dimensional feed network.
  • the invention puts the feeding network component into each layer of the conductor cavity, and connects the feeding network components disposed in the adjacent two layers of the conductor cavity with the transmission line to form a spatial three-dimensional feeding network, which greatly reduces the volume of the feeding network. Therefore, the volume of the phase shifter is greatly reduced, and when the phase shifter assembly is used for the base station antenna, the size of the antenna can be greatly reduced, and transportation and use can be facilitated.
  • the transmission line 215 is disposed in the conductor housing, and is connected to a feeding network disposed in two adjacent conductor cavities, so that the feeding network between the adjacent layers and the transmission line form an integral three-dimensional feeding network.
  • the transmission line 215 is not directly in direct contact with the conductor housing 100, that is, there is a gap between the transmission line 215 and the conductor housing 100 to achieve insulation without short circuit.
  • one end of the transmission line 215 is disposed in one layer of the conductor cavity, and the other end extends through the layer of the conductor cavity into another layer of the conductor cavity adjacent to the layer of the cavity.
  • the transmission line 215 is disposed in the conductor housing 100 to avoid leakage of electromagnetic waves. More signals can be transmitted to the antenna oscillator.
  • the sub-phase shifter assembly includes a feed network coupled to the transmission line and a dielectric component assembly slidably coupled to the feed network, the dielectric component assembly disposed within the conductor cavity of the conductor being disposed within the conductor cavity
  • the feed network slides back and forth to change the contact area of the dielectric component assembly and the feed network;
  • the feed network is a metal conductor strip line or a printed circuit board provided with a microstrip line.
  • the spatial stereo phase shifter is used for a base station antenna, the contact area of the dielectric element component and the feed network component is changed by sliding the dielectric element assembly back and forth relative to a feed network disposed in the cavity, thereby adjusting the base station.
  • the beam direction of the antenna is used for a base station antenna.
  • the feeder network components are simple in structure, easy to install, and can significantly improve production efficiency.
  • each layer of the conductor cavity is integrally formed, and each layer of the conductor cavity is provided with a cavity for moving the feeder circuit component into or out of the conductor cavity, and the conductor shell is superposed or assembled by the multilayer conductor cavity or by metal
  • the conductor profile is integrally formed.
  • the feeder circuit component can be repaired by removing it from the cavity, and the maintenance is very convenient.
  • the insulating component 233 is an insulating dielectric substrate
  • the insulating dielectric substrate disposed in the inner layer of the conductor cavity is composed of an insulating dielectric substrate A230 and an insulating dielectric substrate B231 disposed in the conductor cavity of the layer.
  • the insulating dielectric substrate A230 and the insulating dielectric substrate B231 in the layer conductor cavity are respectively disposed above and below the feed network provided in the layer conductor cavity. That is, an insulating dielectric substrate A230 is disposed on the feeding grid disposed in the cavity, and an insulating dielectric substrate B231 is disposed under the feeding grid disposed in the cavity.
  • the dielectric component assembly disposed in the conductor cavity of the layer is further fixedly connected with a tie rod, and the insulation component disposed in the conductor cavity of the layer is fixedly connected to the feed network disposed in the conductor cavity of the layer, and is disposed on the layer guide
  • the insulating component within the body cavity is fixedly coupled to the conductor housing 100. Pulling the lever allows the dielectric component assembly to move back and forth relative to the feed network, facilitating phase shifting.
  • the multilayer conductor cavity is a two-layer conductor cavity, and the two conductor cavities are an upper conductor cavity 105 and a lower conductor cavity 106, respectively, and the feed network disposed in the upper conductor cavity 105 is an upper layer.
  • the feed network 419, the feed network disposed in the lower conductor cavity is the lower feed network 420.
  • the two-layer conductor cavity is provided, and the conductor housing 100 is easily manufactured and installed while greatly reducing the size of the base station antenna.
  • the upper layer conductor cavity is exemplified: the dielectric component assembly 227 disposed in the upper conductor cavity 105 is fixedly connected with a pull rod 229, and the insulating component 233 disposed in the conductor cavity of the layer is disposed in the cavity.
  • the metal strip line is fixedly connected, and the insulating component 233 disposed in the cavity is fixedly connected to the conductor housing 100.
  • the feed network disposed within each layer of the conductor cavity includes a metal conductor piece and a plurality of ports connected to the metal conductor piece.
  • the metal conductor piece of each feed network component and the plurality of ports connected to the metal conductor piece may be integrally formed.
  • the metal conductor strip line may be composed of a metal conductor piece and a plurality of ports connected to the metal conductor piece.
  • the lower layer feed network 420 includes a first input port 232 and N first output ports; the upper layer feed network 419 includes N three port networks, each of the three port networks including two second output ports and one a first input port is connected to a second input port; the transmission line 215 is at least one, and each of the first output ports is connected to a second input port by a transmission line; wherein N is a positive integer.
  • the lower feed network 420 also includes metal conductor pieces that are coupled to a first input port 232 and N first output ports.
  • Each three-port network also includes a metal conductor piece that is connected to a first output port and two second output ports that belong to the three-port network.
  • N is six.
  • the N first output ports are a first output port 214, a first output port 217, a first output port 219, a first output port 221, a first output port 223, a first output port 225, and six three-port networks.
  • the second output port 201 The two output ports 202 belong to a three-port feed network; the second output port 203 and the second output port 204 belong to a three-port feed network; the second output port 205 and the second output port 206 belong to a three-port feed network;
  • the second output port 207 and the second output port 208 belong to a three-port feed network; the second output port 209 and the second output port 210 belong to a three-port feed network; the second output port 211,
  • the second output port 212 belongs to a three-port feed network.
  • the second input port 213 and the first output port 214 are connected by a transmission line 215, the second input port 216 and the first output port 217 are connected by a transmission line 215, and the second input port 218 and the first output port 219 are passed through one
  • the transmission line 215 is connected, the second input port 220 and the first output port 221 are connected by a transmission line 215, the second input port 222 and the first output port 223 are connected by a transmission line 215, the second input port 224 and the first output port.
  • the 225 is connected by a transmission line 215.
  • the top of the conductor housing is provided with a window communicating with the upper conductor cavity, the window comprising a window A104 and N windows B, each window B being disposed directly above the second output port of a three-port network a first window 101, a second window 102 disposed directly above the second input port of the three-port network, and a third window 103 disposed directly above the other second output port of the three-port network; wherein each window B
  • the second window 102 is also disposed directly above a transmission line connected to the second input port of the three-port network and the first output port connected to the transmission line. This facilitates the connection of the antenna elements to the various ports through the window.
  • the projection of the window directly above each port in the horizontal direction is larger than the projection of the port in the horizontal direction, thereby making it easier to mount the antenna element and the port together.
  • the conductor housing 100 further includes an open conductor spacer 114 disposed in each of the conductor cavities, and the conductor spacer 114 disposed in each of the conductor cavities divides the layer conductor cavities into communication with each other.
  • a left conductor cavity and a right conductor cavity; a protrusion (a protrusion 422 or a protrusion 423) is fixedly disposed on a right side of the insulating medium substrate disposed in each of the conductor cavities, and the protrusion is disposed on the a metal conductor piece of a feed network disposed in each conductor cavity is disposed in the left conductor cavity, and a port connected to the metal conductor piece disposed in the conductor cavity of the layer passes through
  • the left conductor cavity extends into the right conductor cavity.
  • the insulating dielectric substrate and the feed network are less likely to move back and forth when the pull rod is pulled back and forth.
  • the conductor spacer 114 includes an upper conductor spacer disposed in the upper conductor cavity and a lower conductor spacer disposed in the lower conductor cavity, and the upper conductor spacer separates the upper conductor cavity into the upper left conductor cavity 111 and the upper right conductor cavity 109, the lower conductor spacer partitions the lower conductor cavity into a lower left conductor cavity 110 and a lower right conductor cavity 108.
  • the upper left conductor cavity 111, the upper right conductor cavity 109, the lower left conductor cavity 110, and the lower right layer cavity 108 are flush before and after. That is, the left conductor cavity is the upper left cavity 111 or the lower lower cavity 110, and the right conductor cavity is the upper right cavity 109 or the lower right cavity 108.
  • a through hole is formed in the top of the lower right conductor cavity 108, and one end of the transmission line is disposed in the lower right conductor cavity 108, and the other end extends through the through hole into the upper right conductor cavity 109.
  • the lower end of each transmission line 215 may be disposed in the lower right layer cavity 108, and the upper end extends through the through hole into the upper right layer cavity 109, that is, each transmission line is disposed through the lower right layer cavity 108 and the upper right layer cavity 109.
  • the lower conductor spacer is provided with a first opening and N second openings
  • the upper conductor spacer is provided with N third openings, N fourth openings and N fifth openings
  • the first input port 232 extends from the lower left conductor cavity through the first opening into the lower right conductor cavity 108
  • each of the first output ports extends from the lower left conductor cavity through a second opening into the lower right conductor cavity 108
  • a second output port of each three-port network extends from the upper left conductor cavity 111 through a third opening into the upper right conductor cavity 109, and the other second output port of the three-port network is from the upper left conductor cavity
  • the body 111 extends through a fifth opening into the upper right conductor cavity 109.
  • the second input port of the three port network extends from the upper left conductor cavity through a fourth opening into the upper right conductor cavity 109.
  • the protrusions 423 on the right side of the insulating dielectric substrate disposed in the lower cavity are N+1, each of the protrusions 423 is disposed in an opening; and the protrusion 422 on the right side of the insulating dielectric substrate disposed in the upper cavity There are 3N, and each protrusion 423 is stuck in one opening.
  • the projection of the first output port and the second input port connected by a transmission line 215 in the horizontal direction is staggered, and the transmission line 215 is respectively connected to the first output port and the second input port, preferably welding. That is, the first output line and the second input line disposed directly under one window are staggered by projection in the horizontal direction, thereby facilitating soldering.
  • the conductor housing 100 further includes a guiding boss 112 fixedly disposed in each of the conductor cavities, and a pull rod disposed in the conductor cavity encloses a guiding member and a dielectric component disposed in the conductor cavity
  • the bosses 112 are matched with the guide grooves.
  • the guiding groove provided in the upper cavity is the guiding groove 228, and the guiding groove provided in the lower cavity is the guiding groove 306.
  • the matching of the guiding boss 112 and the guiding groove means that the guiding groove can just be sleeved outside the guiding boss and the pull rod and the dielectric component assembly can slide back and forth along the guiding boss 112 through the guiding groove, thereby pulling the device disposed in the cavity.
  • the pull rod can move the pull rod disposed in the cavity and the dielectric member disposed in the cavity back and forth along the guiding boss 112 to move back and forth more easily.
  • the guiding bosses 112 disposed in each of the conductor cavities are upper and lower, and the tie rods disposed in the conductor cavities of the layers are disposed on the two guiding bosses 112 and the left side wall and the top of the conductor cavity.
  • the wall and the bottom plate enclose a groove 113.
  • the pull rod can only move back and forth along the guiding boss 112 without moving left and right, thereby more accurately adjusting the beam direction of the base station antenna.
  • the conductor housing is further provided with a strip window, and the anchor rod in the conductor cavity is fixedly connected with an anchor, and the anchor disposed in the conductor cavity is disposed through the strip window and can move back and forth along the strip window.
  • the anchor is disposed in the upper conductor cavity, and the anchor disposed in the upper conductor cavity and the pull rod disposed in the lower conductor cavity are connected by a first connecting portion; or the anchor is disposed in the lower conductor cavity.
  • the anchor in the lower conductor cavity and the pull rod disposed in the upper conductor cavity are connected by a first connecting portion; or the upper and lower conductor cavities are respectively provided with an anchor, and the anchor and the device disposed in the upper conductor cavity The anchors in the lower conductor cavity are connected by a first connection.
  • the conductor housing 100 is further provided with a strip window 107.
  • the anchor rod 226 is fixedly connected to the pull rod disposed in the upper conductor cavity, and is disposed in the upper conductor cavity.
  • the anchor 226 passes through the strip window and is movable back and forth along the strip window; the anchor 226 disposed in the upper conductor cavity and the pull rod disposed in the lower conductor cavity are connected by the first connecting portion.
  • the forward or rearward force of the anchor 226 causes the anchor 226 to move back and forth along the strip window 107, moving the dielectric element assembly 323 and the dielectric element assembly 324 back and forth, thereby changing the contact area of the dielectric element assembly with the feed network.
  • the pull rod disposed in the lower conductor cavity 105 may also be provided with an anchor 226, and the first connecting member is fixedly connected to the anchor 226 disposed in the lower cavity and the anchor 226 disposed in the upper cavity, respectively.
  • the dielectric component assembly disposed in each layer of the conductor cavity includes at least one dielectric component, and each of the dielectric components disposed in the conductor cavity of the layer is respectively fixedly connected to a pull rod disposed in the conductor cavity of the layer, each dielectric component At least two notches for adjusting a contact area (how much) of the dielectric element provided in the conductor cavity of the layer are provided; each dielectric element is integrally formed by injection molding. This can broaden the bandwidth.
  • the dielectric element is fixedly connected to the pull rod by heat riveting or tight fitting, and the dielectric element assembly disposed in each layer of the conductor cavity includes a plurality of dielectric elements respectively connected to the pull rods disposed in the conductor cavity of the layer.
  • the pull rod is a glass steel rod.
  • FIG. 5 to 8 are perspective views of a spatial stereoscopic phase shifter dielectric element assembly of the present application, including an upper dielectric element assembly 323 disposed within the upper conductor cavity and a lower dielectric element assembly 324 disposed within the lower conductor cavity, wherein
  • the upper dielectric component assembly 323 includes six upper dielectric elements 305 and one anchor 226, each of which is made of polypropylene (PP) or polystyrene (PS plastic) or polytetrafluoroethylene or TPX ( The poly-4-methylpentene-1) or PPE is integrally formed by an injection molding process, and each of the dielectric members 305 has an elongated slot 317 in the middle, and the left portion of the metal conductor piece is located in the elongated slot 317 (even if The dielectric element 305 on the left side of the feed network component is sleeved outside the feed network component.
  • PP polypropylene
  • PS plastic polystyrene
  • TPX polytetrafluor
  • Each of the dielectric elements 305 is fixedly connected to the FRP rod 321 .
  • the left side of the dielectric element 305 is provided with a small cylinder 318, 319. 320
  • the upper FRP rod 321 is provided with holes 314, 315, 316 corresponding to the small cylinders 318, 319, 320
  • the small cylinders 318, 319, 320 are inserted into the holes 314, 315, 316 on the FRP rod, and then plastic
  • the heat riveting process secures the dielectric member to the FRP rod 321 .
  • the other respective upper dielectric members 305 and anchors 226 are also fixedly coupled to the FRP rod 321 by the same method.
  • the guide groove 228 is surrounded by six dielectric elements 305, an anchor 226 and a FRP rod 321 .
  • the anchor 226 can also be provided with an elongated slot.
  • the left portion of the upper feed network 419 can also be partially placed in the elongated slot. By pulling the pull rod, all upper feed networks 419 can be placed in all elongated slots. Move back and forth.
  • Anchor 226 can be a bump.
  • the lower dielectric element assembly 324 includes three dielectric elements 301, one dielectric element 303, one anchor 226, and one support block 302, wherein both the dielectric element 301 and the dielectric element 303 are integrally formed by injection molding through a plastic having a high dielectric constant.
  • the dielectric element 301 is made of the same material as that of the dielectric element 303.
  • the support block 302 is made of a very low dielectric constant material.
  • the dielectric element 301 has small cylinders 311, 312, 313 on one side and holes 307, 308, 309 on the lower glass fiber reinforced plastic rod 322.
  • the small cylinders 311, 312, 313 are inserted into the holes 307, 308, 309, and the dielectric member is fixed to the FRP rod 322 by a plastic hot riveting process.
  • the dielectric member 303, the support block 302, and the anchor 226 are fixed to the FRP rod 322 in the same manner.
  • the guiding groove 306 is composed of a dielectric element 301, a dielectric element 303, a supporting block 302, an anchor 226 and a FRP rod 322.
  • the dielectric element 301 is provided with an elongated slot 310, and the dielectric element 303 has an elongated slot 325.
  • the supporting block 302 is also An elongated slot is provided in which the left portion of the lower feed network is placed in these elongated slots, and the drag of the anchor 226 causes the dielectric element to move over the feed network.
  • the anchor 226 disposed in the lower conductor cavity may also be provided with an elongated slot, and the left side portion of the lower feed network may also be partially placed in the elongated slot. By pulling the pull rod, all the lower feed networks may be All the elongated slots move back and forth.
  • each feed network and insulation assembly (the insulation assembly is also used to insulate the feed network from the conductor cavity) 233, preferably by means of an insulating dielectric rod passing through the insulation assembly and the feed network.
  • . 9 to 12 are schematic diagrams showing the structure of a spatial stereo phase shifter of the present application.
  • the conductor cavity includes an upper feed network 419, a lower feed network 420, an upper dielectric component 323, a lower dielectric component 324, and six transmission lines. 215.
  • the upper feed network 419 includes six three-port networks 416, and the insulating medium substrate 403 and the insulating medium substrate 404 disposed on the upper layer of the upper feed network are made of a plastic foam material, and the upper layer feed network and the insulation.
  • the dielectric substrates 403, 404 are fixedly connected by at least one insulating dielectric rod (a rod made of an insulating material) passing through the upper feed network and the insulating dielectric substrates 403, 404.
  • the insulating dielectric substrates 403 and 404 are all provided with protrusions 422.
  • Each of the protrusions 422 is provided with a positioning hole 421.
  • Each protrusion 422 is locked in an opening, and the protrusion 422 cooperates with the conductor housing 100.
  • each port of the upper layer feeding network (the port is the first input port and the N first output ports) is provided with a through hole, and each insulating dielectric rod 405 passes through a positioning. And a through hole of the upper feeding network disposed under the positioning hole (preferably directly below), the upper feeding network and the insulating dielectric substrates 403, 404 are positioned and fixed to each other, and then insulated by a hot plastic riveting process
  • the dielectric rod 405 is closely connected to the insulating dielectric substrate 403, the insulating dielectric substrate 404, and the upper layer feeding network, thereby tightly fixing the insulating dielectric substrate 403, the insulating dielectric substrate 404, and the upper layer feeding network.
  • the three-port network 416 is fixedly connected to the insulating dielectric substrates 403, 404, and the insulating dielectric rod 405 may be a plastic rod.
  • the upper dielectric component assembly 419 includes six identical dielectric components 305, each of which is inserted into six dielectric components 305 such that each dielectric component and a three-port feed network inserted into the dielectric component form A sub-phase shifter is provided, and therefore, the sub-phase shifter assembly disposed in the upper conductor cavity includes six sub-phase shifters.
  • Each three-port feed network includes a second input port and two second output ports connected to a first output port, and the six three-port feed network includes twelve second output ports and six Two input ports.
  • the lower layer feed network 420 includes a seven port feed network 418, wherein the seven ports are a first input port (main input port) 232 and six first output ports, respectively, and the six first output ports are respectively port 214, Port 217, port 219, port 221, port 223, and port 225, seven-port feed network 418 and insulating dielectric substrates 401, 402 are insulated by at least one through seven-port feed network 418 and insulating dielectric substrates 401, 402. The media rod is fixedly connected.
  • the insulating dielectric substrate 401 and the insulating dielectric substrate 402 are provided with protrusions 423, and each of the protrusions 423 is provided with a positioning hole 412, and each protrusion 423 is clamped in an opening of the lower conductor cavity, and the protrusion 423 interacts with the conductor housing 100 to function as a lower layer feed network.
  • Each port of the lower layer feed network (the port is a first input port and six first output ports) is provided with a through hole.
  • Each of the insulating dielectric rods 405 in the lower conductor cavity passes through a positioning hole 412 and a through hole of a seven-port feed network disposed under the positioning hole 412 (preferably directly below) to connect the seven-port feed network 418 and
  • the insulating dielectric substrates 401 and 402 are positioned and fixed to each other, and then the insulating dielectric rods 405 are closely connected to the insulating dielectric substrate 401, the insulating dielectric substrate 402, and the lower layer feeding network through a thermal plastic riveting process, thereby making the insulating dielectric lining.
  • the spatial stereo phase shifter further includes an insulating limit bar 424 for restricting the seven-port feed network 418 from moving back and forth relative to the insulating dielectric substrates 403, 404, the insulating limit bar passing through the insulating dielectric substrates 401, 402.
  • the positioning hole 413 is in close contact with the corner of the seven-port feeding network 418, so that the seven-port feeding network 418 and the insulating dielectric substrates 401, 402 can be better fixed together without moving back and forth, of course, the positioning hole 413 is the most It is preferably disposed in the middle of the insulating dielectric substrate to better secure the seven-port feed network 418 and the insulating dielectric substrates 401, 402.
  • the upper conductor cavity may also be provided with an insulating limiting rod that passes through the insulating dielectric substrates 401, 402 and is in close contact with the corner of the feeding network disposed in the conductor cavity.
  • the lower dielectric element assembly 324 includes three short dielectric elements 301, one long dielectric element 303, one support block 302, and a long dielectric element 303 disposed adjacent the first input port (main input port), the long dielectric element
  • the 303 and the feed network 418 form a bidirectional phase shifter
  • the other three short dielectric elements 301 and the feed network 418 form a one-way phase shifter
  • the support block 302 functions to support the strip line, and therefore is disposed on the lower layer.
  • the phase shifter assembly within the conductor cavity contains a 5-subphase phase shifter.
  • the transmission line 215 is used to connect the upper and lower layer feed networks.
  • the pin pins 408, 409 of one transmission line 215 are inserted into the holes 414, 415 of a second input port 213 of the upper layer feed network, and the pin pins 410, 411 of the transmission line are inserted into the lower layer feed network.
  • the holes 406, 407 of the first output port 214 the second input port 213 and the first output port 214 are connected by a transmission line 215.
  • the remaining five transmission lines 215 are connected to the upper and lower feed networks accordingly, so that the first input port of the upper six six-port networks is connected with the six first output ports of the lower layer to form an overall network.
  • the electrical network includes a main input port and 12 second output ports.
  • the sub-phase shifter component disposed in the upper conductor cavity includes six sub-phase shifters, and the sub-phase shifter component disposed in the lower conductor cavity includes There are 5 sub-phase shifters, and the spatial stereo phase shifter has a total of 11 sub-phase shifters.
  • the dielectric constant value of the dielectric component assembly disposed in each of the conductor cavities is set to be the phase of the phase shifter disposed in the conductor cavities of the respective layers when the dielectric component assemblies disposed in the conductor cavities of the respective layers are synchronously moved.
  • the anchor 226 disposed in the upper conductor cavity and the anchor 226 disposed in the lower conductor cavity are connected by a first connecting portion, and the first connecting portion may be a rod-shaped member. As long as the rod member or anchor 226 has a back and forth force, the dielectric component assembly disposed in the upper conductor cavity and the dielectric component assembly disposed in the lower conductor cavity can be moved back and forth synchronously.
  • each of the dielectric elements disposed in each of the conductor cavities is of the same dielectric material having the same dielectric constant, and the dielectric constant of the dielectric component of the upper conductor housing is between 2.0 and 2.8
  • the material used in the dielectric component assembly in the lower conductor conductor cavity has a dielectric constant value of Between 3.0 and 5.0 (for example, ceramic materials, modified PPE materials), the dielectric constants of the dielectric element materials in different conductor conductor cavity layers are different, and the dielectric constant has a difference ⁇ between them.
  • the phase of the feed network disposed in the conductor cavity of each layer can be changed synchronously, simplifying the transmission system of the ESC antenna.
  • a portion of the feed network disposed in any one of the conductor cavities extends into the dielectric substrate and another portion is exposed outside the dielectric substrate.
  • the dielectric component components disposed in each of the conductor cavities are disposed on the left side of the feed network, and the insulating dielectric substrate and the dielectric component components disposed in each of the conductor cavities are disposed in the left conductor cavity, and are disposed on the layer guide
  • the rods, dielectric component components, and dielectric substrate in the body cavity are arranged from left to right in the leftmost direction.
  • the insulating dielectric substrate is made of a low dielectric constant, low loss material.
  • the low dielectric constant, low loss material may be, for example, one or more of polypropylene (PP), polyethylene (PE), polytetrafluoroethylene (PTFE), TPX (poly 4-methylpentene-1) .
  • PP polypropylene
  • PE polyethylene
  • PTFE polytetrafluoroethylene
  • TPX poly 4-methylpentene-1
  • the insulating medium substrate is made of a foamed material.
  • the foam material is used for transportation and the gain of the antenna can be improved.
  • each of the conductor cavities is a rectangular parallelepiped conductor cavity with cavities at both ends, and each three-port network is arranged in order from front to back, and the tie rods and the guide bosses are parallel to the long sides of the rectangular parallelepiped conductor cavities.
  • the ports of the feed network disposed in the lower cavity are also arranged from front to back.
  • the first input port is disposed at an intermediate position of each of the second input ports, which facilitates the stripline of the feed network component. Arrangement can save more raw materials.
  • the first output port and the second input port connected by a transmission line 215 are preferably in close proximity for easy installation.
  • the drawbars 321, 322 are parallel to the guide bosses 11, thereby moving the dielectric substrate back and forth relative to the feed network assembly.
  • the insulating medium substrate and the conductor housing are fixedly connected by rivets.
  • it is connected by a rivet that passes through the insulating medium substrate and the conductor housing.
  • the feeder network components When installing, the feeder network components can be installed first, and then the respective feeder network components are inserted into the cavity from the cavity of one layer of the cavity, and then the first output ports and the respective second input ports are connected through the transmission line. Finally, the insulating medium substrate and the conductor housing 100 are fixedly connected by rivets, and the installation is very convenient, and the installation can be completed within 10 minutes, which greatly improves the production efficiency. Set two chambers to save material.
  • each of the first output ports and each of the second input ports are connected by a transmission line.
  • the feed network is divided into upper and lower layers, and the upper and lower feed networks are combined into a whole through a transmission line, thereby forming a spatial stereo phase shifter, which comprises a main input port and 12 output ports.
  • a spatial stereo phase shifter which comprises a main input port and 12 output ports.
  • phase shifter of the present invention When the phase shifter of the present invention is used for an antenna, a signal is input from the first input port to each of the first output ports, and a signal transmitted from each of the first output ports is transmitted to and through a transmission line connected to the first output port. a second input port connected to the transmission line, and then transmitting the signal to two second output ports belonging to a three-port feed network and the second input port, respectively, and transmitting to each second output port Antenna vibrator.
  • the present invention also provides a spatial stereo phase shifter assembly for a base station antenna, the spatial stereo phase shifter assembly comprising the two interconnected spatial stereoscopic mover assemblies described in Embodiment 1, and two moving directions
  • the components are mirrored left and right.
  • the phase shifter is composed of a left spatial stereo phase shifter 532 and a right spatial stereo phase shifter 533 disposed on the right side of the left phase shifter.
  • the left spatial stereo phase shifter 532 and the right spatial stereo phase shifter 533 are front and rear, Up and down flush.
  • the conductor housings of the two spatial stereoscopic movers are integrally formed to form the outer casing 531 of the phase shifter assembly.
  • the phase shifter assembly further includes a second connection portion 528 that is fixedly coupled to the anchors of the upper portions of the two spatial stereo phase shifters, respectively.
  • the second connecting portion 528 may be disposed on the conductor housing 531, and the second connecting portion 528 is a dragging pad or a tow bar.
  • a guiding groove 534 may be disposed on the outer casing 531, and the second connecting portion 528 may be provided with a guiding protrusion matching the guiding groove 534.
  • the guiding protrusion is disposed in the guiding groove 534, and the second connecting portion 528 is forward or When the force is backward, the second connecting portion 528 can be moved back and forth along the guiding groove 534.
  • the guiding groove, the pull rod and the guiding protrusion are preferably arranged in parallel.
  • the elongated rods of the respective dielectric elements of the tie rod and the dielectric element assembly are also preferably parallel to facilitate pulling.
  • Figure 13 is a schematic view showing the structure of the phase shifter assembly of the present application, which comprises an integrally formed conductor housing 531 having eight conductor cavities 501, 502, 504, 505, 507, 508, 509 therein. 510, wherein 501 and 510 are disposed on the left side to form a pair, and the conductor cavity 501 and the conductor cavity 502 together form a lower conductor cavity of the left space stereo phase shifter, and the conductor cavity 510 and the conductor cavity 509 are combined.
  • the lateral metal wall 506 isolates the upper feed network component from the lower feed network component.
  • the small windows 513, 517 are two windows directly above the three-port network of the left space stereo phase shifter, and the windows 523, 518 are two windows directly above the three-port network of the right space stereo phase shifter, left
  • the spatial stereo phase shifter and the right spatial stereo phase shifter each have 12 output ports.
  • the insulating dielectric substrate provided in the upper conductor cavity can be fixed to the outer casing by the rivet which penetrates into the fixing hole, and the lower insulating dielectric substrate can be fixed to the metal casing 531 by the same method.
  • the long window 514 and the long window 521 are respectively a second window of the left spatial stereo phase shifter and the right spatial stereo phase shifter, and the window 526 and the window 527 are the window A of the left spatial stereo phase shifter and the right spatial stereo phase shifter, respectively.
  • the main input port is located in the middle of the upper portion of the outer casing, and the push-pull carriage slides back and forth along the elongated strip windows 529, 530 and the guiding groove 534, thereby driving the dielectric component assembly disposed in each of the conductor cavities relative to the conductor cavity.
  • the feed network in the body slides back and forth, changing the contact area of the dielectric component assembly and the feed network, thereby adjusting the beam direction.
  • the metal casing 531 is provided with a circular hole, and the insulating medium substrate is provided with a fixing hole corresponding to the circular hole, and the insulating medium substrate and the conductor casing are fixed together by the explosion rivet through the circular hole and the fixing hole.
  • a circular hole and a fixing hole provided near a window B are taken as an example: a rivet passes through the circular hole 511 and the fixing hole 601, a rivet passes through the circular hole 512 and the fixing hole 602, and The rivet passes through the circular hole 515 and the fixing hole 605, and a rivet passes through the circular hole 516 and the fixing hole 606 to fix the upper dielectric substrate disposed on the left side to the conductor housing; a rivet passes through the circular hole 525 and the fixing hole 701, A rivet passes through the circular hole 524 and the fixing hole 704, a rivet passes through the circular hole 520 and the fixing hole 706, and a rivet passes through the circular hole 519 and the fixing hole 708 to fix the upper insulating dielectric substrate provided on the right side to the conductor housing.
  • a circular hole and a fixing hole are respectively arranged in the vicinity of each window B to better securely connect the insulating dielectric substrate and the conductor housing.
  • 604 is a transmission line
  • the insulating dielectric rods 610, 611, 609 are insulating dielectric rods of the left space stereo phase shifter
  • the port 603 and the port 607 are two second output ports of a three-port network of the left space stereo phase shifter; The first input port of the left space stereo phase shifter.
  • Figure 15 is a view showing an exploded view of the right space stereo phase shifter of the present application, wherein the upper insulating dielectric substrates 710, 711 and the lower dielectric substrates 713, 714 are made of a low dielectric constant plastic foam material, There are six mutually independent three-port networks 712 between the insulating dielectric substrate 710 and the insulating dielectric substrate 711, 702 and 707 are two second output ports of one of the three-port networks 712, and 705 is the three-port network 712.
  • the second input port, 703 is an insulating dielectric rod, and the dielectric substrate and the strip line are fixed to each other.
  • the lower layer feeding network is a seven-port network, including one main input port, six output ports, and 715 for the lower layer feeding. Network stripline.
  • the upper dielectric component assembly 718 includes six identical dielectric elements 716 that are capable of forming six sub-phase shifters with the upper feed network; the lower dielectric component assembly 719 includes three identical short dielectric elements 717, one long
  • the dielectric elements 720, which form five sub-phase shifters with the upper layer feeding network, are designed to simplify the transmission system in order to ensure that the upper and lower layers of the tie rods are synchronously adjusted, and the dielectric constant of the upper dielectric element is different from the dielectric constant of the lower dielectric element.
  • the present invention separates the two layers of the feeder grid into a whole by placing the phase shifter feed network in two metal conductor cavities, and then passing them through the transmission line, and then using them in different conductor cavities.
  • Dielectric elements with different dielectric constants so that we can use one transmission system to simultaneously move the upper and lower dielectric components to move together, which simplifies the transmission system. Otherwise, we need two sets of transmission systems to drive the upper and lower layers separately. Dielectric element. Therefore, the present invention extends the phase shifter to a three-dimensional structure, and forms a spatial stereo phase shifter capable of reducing the width of the original planar phase shifter by 50%.
  • the present invention enables us to Designing smaller-sized ESC antennas, these antennas will no longer use cables, and if the antenna has M radiators, then this beamforming network will have M-1 sub-phase shifters, so we can design high Quality antenna pattern.
  • a second output port of the left spatial stereo phase shifter and a second output port of the right spatial stereo phase shifter are respectively connected to one antenna element.
  • the outer casing and the casing are preferably not provided with openings to prevent electromagnetic waves from leaking. It is also preferable that the lateral metal wall and the longitudinal metal wall 503 are not provided with openings to prevent electromagnetic waves from leaking.
  • phase shifter and phase shifter components are suitable for all frequency bands, especially for fourth-generation mobile base station antennas at 610-960MHz and 1420-2690MHz, 3300-3900MHz and other multi-frequency base station antennas and future fifth-generation mobile communication antennas.
  • the conductor of the present invention may be a material such as metal aluminum or aluminum alloy. More than two fingers.
  • the upper and lower feed networks of the phase shifters are only relative. In fact, the upper and lower feed networks can be reversed. Of course, the upper and lower layers of each phase shifter that make up the phase shifter components are fed. The network is also relative, ie the upper and lower feed networks of each phase shifter that make up the phase shifter component are also tunable.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)

Abstract

La présente invention concerne le domaine technique des dispositifs de communication, et en particulier un déphaseur stéréo spatial pour une antenne de station de base. Le déphaseur stéréo spatial comprend une enveloppe de conducteur qui est pourvue intérieurement de multiples couches de cavité de conducteur et d'ensembles de réseau de sources agencés dans les cavités de conducteur, et un ensemble d'isolation isolé de l'enveloppe de conducteur. Le déphaseur stéréo spatial comprend en outre une ligne de transmission, qui est utilisée pour connecter deux couches adjacentes d'ensembles de réseau de sources et qui est isolée de l'enveloppe de conducteur. La présente invention place un ensemble de réseau de sources dans une cavité de conducteur dans chaque couche, et utilise une ligne de transmission pour connecter des ensembles de réseau de sources agencés dans deux couches adjacentes de cavité de conducteur de façon à former un réseau de sources stéréo spatial, de telle sorte que la largeur du réseau de sources est réduite de 50 %, et lorsque le déphaseur stéréo spatial est utilisé pour une antenne de station de base, il est possible de disposer d'un espace suffisant pour concevoir un réseau de formation de faisceau hautement intégré sans câble, ce qui permet d'améliorer l'efficacité de production et la cohérence de l'antenne, d'économiser des matériaux, de réduire les coûts et de faciliter le transport.
PCT/CN2018/084083 2017-04-28 2018-04-23 Déphaseur stéréo spatial pour antenne de station de base, et ensemble déphaseur WO2018196713A1 (fr)

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