WO2016074592A1 - 一种阵列天线可调移相装置和天线 - Google Patents
一种阵列天线可调移相装置和天线 Download PDFInfo
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- WO2016074592A1 WO2016074592A1 PCT/CN2015/094083 CN2015094083W WO2016074592A1 WO 2016074592 A1 WO2016074592 A1 WO 2016074592A1 CN 2015094083 W CN2015094083 W CN 2015094083W WO 2016074592 A1 WO2016074592 A1 WO 2016074592A1
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- Prior art keywords
- dielectric
- strip line
- dielectric element
- network
- cavity
- Prior art date
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- 239000002184 metal Substances 0.000 claims description 23
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- 239000000463 material Substances 0.000 claims description 11
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- 239000006260 foam Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 claims description 2
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- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims 1
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- 230000008859 change Effects 0.000 description 6
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- 230000010363 phase shift Effects 0.000 description 5
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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
-
- 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
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0075—Stripline fed arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- 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 a medium phase shifter device, and more particularly to an array antenna adjustable phase shifting device and an antenna
- the device is used to feed signals between a common transmission line and two or more ports, for example, from an input port of the array antenna to a radiator of the array antenna.
- the base station ESC antenna realizes beam downtilt adjustment of the base station antenna through a phase shifter in the beamforming network, and has the advantages of large down-tilt angle range, high precision, good pattern control, 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 constant thus changing the wavelength of the electromagnetic wave, is equivalent to the change in the electromagnetic wave travel, ie the change in the feed phase.
- the second is to change the length of the feeder line, increase or decrease the length of the feeder line, that is, directly increase or decrease the stroke of the electromagnetic wave, thereby achieving the change of the feed phase.
- a beamforming network is described in US Pat. No. 5,949, 303.
- the technical solution is that the dielectric element piece moves between the chassis and the curved feed network to realize a phase shift function, and the phase difference between different output ports is passed.
- the transmission line of the feed network is realized by different media coverage lengths.
- the shortcoming of this scheme is: Since the curved return lines are all parallel to each other, the lateral direction of the device is relatively wide, and the relative position of the output interruption is constrained by the distribution, which is not conducive to reducing the reflected signal, and is not conducive to design with wide frequency.
- the responsive components also add to the structural complexity of the phase shifter, which in some applications can be contradictory to reality.
- a beamforming network is described in the CN1547788A patent, the technical proposal of which is to achieve phase shift of multiple ports by relative sliding between a highly integrated circuit board and a whole elongated medium plate.
- the core idea is similar to US5949303, but the too slender dielectric plate is difficult to ensure long-term maintenance due to material and mechanical strength.
- the deformed dielectric plate will be unevenly loaded during moving, which may cause the phase shifter to move.
- the card is dead or affects the phase shift accuracy.
- the purpose of the present application is to provide a new beam shaping network with improved structure and the application of the beamforming network, in view of the deficiencies of the existing beamforming network.
- One aspect of the present application discloses an array antenna tunable phase shifting device for feeding signals between a common input port and two or more ports, the device including a conductor cavity, a feeder a branch network, a dielectric component, and a tie rod; a first edge of the conductor cavity is provided with an input port and an output port, and a second edge is provided with a tie rod of a dielectric element;
- the feeder branch network includes a transformer metal rectangular cavity portion of different widths for subtracting Small signal reflection through the network, the feeder branch network couples part of the input port and the output port through one or more feeder nodes;
- the dielectric element contains one or more transformer sections for reducing signal reflection through the network;
- the drawbar is along the cavity Placed on the second edge, the dielectric element is attached to the tie rod, the dielectric element is adjacent to the feeder branch network portion and the dielectric element connected to the first node from the input port contains a transformer portion, and the remaining portion of the dielectric element Transforming only at the end that overlaps the feeder branch network section
- the transformer portion of the dielectric element is formed by reducing the width of the dielectric element.
- the transformer portion of the dielectric element is formed by reducing the thickness of the dielectric element.
- the drawbar is made of a thermally elongated material, which is a metal or fiberglass.
- the feeder branch network consists of a strip line located inside the conductor cavity; the conductor cavity is composed of two wide walls located on the strip line and the lower portion, and two narrow walls.
- the conductor cavity is formed into a metal profile cavity by an extrusion process.
- the conductor cavity comprises a plurality of longitudinally-oriented protruding latching portions, the longitudinally-oriented protruding latching positions being disposed on a wide cavity inner surface adjacent the second edge.
- each dielectric element comprises two identical portions disposed between the wide walls of the conductor cavity, the two identical portions being respectively located on opposite sides of the strip line portion, the dielectric element Fixed to the lever.
- each dielectric element is made in one piece and includes a longitudinal hollow slot for the placement of the strip line and a longitudinal bore or channel for connecting the tie rod.
- each of the dielectric elements includes a longitudinal guide slot for projecting the longitudinally oriented tabs for placement on the inner surface of the wide wall.
- the dielectric element is made of plastic by an extrusion process.
- each dielectric element comprises a longitudinal hollow slot for receiving a strip line, the inner surface of the longitudinal hollow slot being provided with a chamfer guiding the strip line and a small for mounting the dielectric element on the tie rod The boss and the small boss are loaded into the holes in the tie rod.
- the dielectric component is integrally formed by injection molding, and the dielectric component is provided with at least one notch for adjusting the contact area of the dielectric component with the feed network.
- the strip line at least partially connected to the output port comprises a dielectric substrate and is located between the wide walls on either side of the strip line.
- the substrate of the dielectric element is made of a material having a low dielectric constant.
- the material having a low dielectric constant is a polyethylene foam.
- the stripline at least partially connected to the output port comprises a non-conductive spacer, the spacer supporting a stripline between the wide walls.
- the strip line is formed on one side of the substrate of the lower dielectric element, and the substrate supports a strip line between the wide walls.
- the substrate of the upper dielectric element is located above the strip line on the substrate of the lower dielectric element.
- the strip line is formed on both sides of the thin substrate of the dielectric element, the substrate supporting a strip line between the wide walls.
- At least one of the feeders located between the node and the output port includes a wave impedance that is at least 20% higher than the impedance of the output port and the transformer portion connected to the output port.
- Another aspect of the present application is an antenna comprising the apparatus of the present application, wherein at least two antenna elements are connected to an output port of the apparatus either directly or through a coaxial cable.
- the array antenna adjustable phase shifting device of the present application is designed according to the phase shifting principle of the insertion medium method, the feeding network is highly integrated, adopts a strip line connection, and has no nonlinear electrical connection point, Good intermodulation characteristics;
- the dielectric element placed in the guiding groove makes the transmission error small, the downward tilting precision is high, the transmission is smooth, and the dielectric element moves, and the phase shifting amount changes linearly.
- FIG. 1 is a schematic diagram of an internal structure of a beam forming network in an embodiment of the present application
- FIG. 2 is a schematic diagram of an overall appearance of a beam forming network in an embodiment of the present application
- FIG. 3 is a schematic overall cross-sectional view of a beam forming network in an embodiment of the present application.
- FIG. 4 is a partially enlarged schematic structural view of a dielectric element in an embodiment of the present application.
- FIG. 5 is a schematic diagram of an internal structure of a beam forming network in another embodiment of the present application.
- FIG. 6 is a schematic diagram of an overall appearance of a beam forming network in another embodiment of the present application.
- FIG. 7 is a schematic overall cross-sectional view of a beam forming network in another embodiment of the present application.
- FIG. 8 is a schematic diagram of an overall appearance of a polymer beamforming network device in an embodiment of the present application.
- FIG. 9 is a schematic cross-sectional view of a two-layer metal cavity of a polymer beamforming network device in an embodiment of the present application.
- FIG. 10 is a schematic overall cross-sectional view of a polymer beamforming network device in an embodiment of the present application.
- FIG. 11 is a schematic diagram showing the internal structure of a polymer beamforming network device in an embodiment of the present application.
- the array antenna adjustable phase shifting device of the present application comprises an input port, at least two output ports, a feeding network connecting the input and output ports, a dielectric substrate supporting the feeding network, a drawbar, and a rod a dielectric element piece and a rectangular metal cavity.
- the feed network is highly integrated.
- the feeder network connecting the array elements of the antenna array does not use cables. Instead, the strip lines are integrated in the feed network.
- the feed network is fixed on the dielectric substrate of the two support feed networks. In the middle, the two ends of the conductor cavity are closed, and the other end faces are closed to form a long integrated rectangular cavity.
- the feeding network with the dielectric block is installed on one side of the rectangular cavity, and the dielectric component block is fixed according to the design.
- the upper and lower dielectric blocks of the dielectric element block sandwich the strip line of the feed network
- the dielectric element block has a guiding groove
- the other side of the metal cavity has a guiding groove and a guiding card position, in the metal cavity
- the guiding card is stuck in the guiding groove of the dielectric component block
- the pull rod is placed in the guiding groove of the metal cavity, so that the insulating dielectric block is pulled on the feeding grid by pulling the pull rod
- the planar space of the surface moves.
- This new beamforming network architecture shows that if an array antenna has N radiators, the beamforming network will have N-1 phase shifters, resulting in high quality patterns on the horizontal and vertical planes.
- the feed network connecting the array elements of the antenna array does not use cables, but is integrated into the feed network using strip lines.
- the feed network is highly integrated, and the feeder network connecting the array elements of the antenna array does not use cables, but is integrated into the feed network using strip lines.
- the feed network is fixed between two symmetrical insulating dielectric substrates.
- the insulating dielectric substrate has a fixed hole location for the fixed feed network.
- the dielectric substrate is about longer than the length of the feed network.
- the width of the feed network is about wider than the width of the dielectric substrate. There is no coverage of the dielectric substrate at the input and output ports of the feed network.
- the beamforming network will include N-1 phase shifters.
- the cavity in which the feed network is installed is a long conductor cavity at both ends of the mouth.
- the narrow side wall of the conductor cavity has an input/output port mounting hole, and the wider surface has an insulating medium substrate fixing hole.
- One side of the conductor cavity has a guiding groove and a guiding card.
- a feed network with an insulating dielectric substrate mounted is disposed on one side of the side wall bore of the cavity.
- a dielectric element piece is fixed to the sliding rod.
- the dielectric element piece is vertically symmetrical with a narrow deep groove in the middle to the bottom thereof, but does not penetrate.
- the strip line is located in the middle of a narrow deep groove of the dielectric element piece.
- the dielectric element piece has a guide groove on one side.
- the dielectric element has one or more notches on the sheet, and the shape and number of the notches are designed.
- the bottom side of the dielectric element piece has a hot riveted post that holds the FRP rod.
- the dielectric element piece may be composed of two dielectric sheets, or it may be integrally formed as one piece.
- the dielectric element has a chamfer on the sheet to guide the strip line.
- a sliding pull rod mounted with a dielectric element piece is disposed on a side of the cavity body having a guide groove and a guide card.
- the conductor cavity in which the feed network is mounted is constructed as a single or multi-layer cavity. There is a small barrier cavity on the other side of the metal cavity, and the output input port is disposed in the small cavity.
- FIG. 1 shows a first embodiment of the present invention, including output ports 8 a , 8b , 8 C , 8d , 8e , input port 9, and a sliding mechanism, package
- the dielectric element blocks 2a, 2b and 4, the FRP rod 6, the sliding block 5, the FRP rod 6 have fixed holes, the dielectric element blocks 2a, 2b and 4 have plastic posts on one side, and the dielectric element block is passed through a hot riveting process.
- 2a, 2b and 4 are fixed on the FRP rod 6, and the sliding block 5 is subjected to a large pulling force. We use the POM to make the sliding block 5.
- the sliding block 5 is also designed with a cylinder, through the hot riveting process. It is fixed to the FRP rod 6.
- Two identical dielectric substrates 7 are sandwiched by a strip line 3, and the dielectric substrate has fixed holes 10a, 10b, 10c, and the strip line 3 is tightly fixed to the two liners by using plastic fasteners or plastic hot riveting. Between the bottom.
- the metal cavity 1 has a notch on one side, and the output ports 8a, 8b, 8c, 8d, 8e of the feed network, and the input port 9 are mounted in these notches. As shown in Fig.
- the strip line 3 on which the dielectric substrate 7 is mounted is fixed in the metal cavity 1 by plastic rivets l la, l ib , 11c , l id , l ie , output ports 8a, 8b, 8c, 8d , 8e, the input port 9 is exposed to the outside of the metal cavity 1, and the FRP rod 6 can also be used as a scale.
- FIG. 3 is a cross-sectional view of the entire cavity, the glass steel rod 6
- the dielectric element blocks 2a, 2b and 4 are provided with guiding grooves 13, and the guiding grooves 13 are carded on the guiding card 12 of the metal cavity 1, and the dielectric element piece has a chamfer 21a
- the chamfer 21a serves to guide the strip line
- the strip line 3 is disposed in the elongated slots in the dielectric element blocks 2a, 2b and 4.
- the beamforming network of the ETA base station antenna of this example is shown in FIG. 5-7.
- the solution of this example is basically similar to that of Embodiment 1, except that the input terminals 50a, 50b, 50c, 50d, 50e, and the output port 511. - a small cavity 512 is added to the side, as shown in FIG. 5, including a metal cavity 51, a metal cavity 51
- the upper jaw has holes 50a, 50b, 50c, 50d, 50e, 511, a strip line 53, a substrate dielectric block 55 having fixed mounting holes 57 thereon, which are banded by plastic hot riveting or fasteners such as plastic screws.
- the wire 53 is sandwiched between two identical substrate dielectric blocks 55 and mounted on one side of the input and output ports 511, 50a, 50b, 50c, 50d, 50e, and the dielectric element blocks 52, 54, 56 are heated by plastic
- the riveting is fixed to the FRP rod 59, and the sliding block 58 is a POM material, which is also fixed to the FRP rod 59 by heat riveting. As shown in FIG.
- 73 is a riveting point, and a FRP rod 59 is disposed in the guiding groove 72.
- the sliding carriage 58 and the dielectric member block 56 have guiding grooves 71 which are disposed in the guiding card 74, the dielectric element block.
- the upper jaw has an elongated slot,
- the cross section has a chamfer 70 which, when the pull rod 59 is pulled, adjusts to guide the strip line.
- the surface of the metal cavity has fixing holes 60a, 60b, 60c, 60d, 60e, and the dielectric substrate 55 and the strip line 53 are fixed in the cavity by plastic rivets.
- 61a, 61b, 61c, 61d, 61e are the holes of the output port on the surface of the cavity
- 62 is the hole of the input port on the surface of the cavity
- 512 is a small cavity, closed output input port, in the dual-polarized antenna This design can effectively suppress coupling.
- FIG. 8-11 The beamforming network device of the EA base station antenna of this example is shown in FIG. 8-11, and the device is actually superposed by the beamforming networks of the two embodiments.
- Figure 11 shows the internal structure of the first layer, as shown in Figure 11, including a metal cavity 110, a feed network mounted therein, and a strip line 101 mounted between the two dielectric substrates 102, with fasteners
- the holes 113, 117 are fixedly fastened and mounted on the output ports 12 0a, 120b, 120c, 120d, 120e, the input port 121, the side of the support end 83, and the dielectric member blocks 104, 114 are fixed on the sliding rod 106. , 116, slide the carriage 118.
- One side of the metal cavity 110 has a small cavity structure 82 in which the input and output ports are located.
- the cavity shown in Fig. 8 has a two-layer structure, Fig. 9 is a cross-sectional view thereof, and in Fig. 8, the holes 80a, 80b, 80c, 80d are fixed.
- 80e has plastic rivet locking substrate 102, 85a, 85b, 85c, 85d, 85e is the hole of the output port ⁇ on the surface of the cavity, 84 is the hole of the input port ,, 83 is the support port, 82 is the small cavity Body, the input and output ports are located therein, and the upper and lower chambers are separated from each other. More specifically, as shown in FIG.
- 10, 101 and 109 are strip lines in the upper and lower chambers, 102 and 108 dielectric substrates, and strip lines are sandwiched therebetween, and the dielectric element block has elongated slots and strips.
- the line is located in the middle of the elongated slot, and the dielectric blocks 104 and 107 have chamfers 103 which act as strip lines.
- the fiberglass tie rod 106 is located in a guide groove located in the cavity, and the slide carriage 105 is located in the cavity guide card. This pulls the FRP rod 106 ⁇ , and the entire part can move smoothly in the cavity.
- Option 3 applies to long antenna designs or multi-band antenna designs.
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/507,763 US10446896B2 (en) | 2014-11-11 | 2015-09-11 | Adjustable phase shifting device including branched feed lines with transformer portions for feeding an antenna array |
EP15859899.5A EP3220472B1 (en) | 2014-11-11 | 2015-11-09 | Adjustable phase shifting device for array antenna and antenna |
RU2017106918A RU2650416C9 (ru) | 2014-11-11 | 2015-11-09 | Антенна и антенная решетка с регулируемыми фазовращателями |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410630651.9A CN104466405A (zh) | 2014-11-11 | 2014-11-11 | 一种阵列天线可调移相装置 |
CN201410630651.9 | 2014-11-11 |
Publications (1)
Publication Number | Publication Date |
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WO2016074592A1 true WO2016074592A1 (zh) | 2016-05-19 |
Family
ID=52912055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2015/094083 WO2016074592A1 (zh) | 2014-11-11 | 2015-11-09 | 一种阵列天线可调移相装置和天线 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10446896B2 (zh) |
EP (1) | EP3220472B1 (zh) |
CN (2) | CN104466405A (zh) |
RU (1) | RU2650416C9 (zh) |
WO (1) | WO2016074592A1 (zh) |
Cited By (2)
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CN114424406A (zh) * | 2019-09-25 | 2022-04-29 | 华为技术有限公司 | 天线振子的馈线网络 |
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CN104466405A (zh) * | 2014-11-11 | 2015-03-25 | 李梓萌 | 一种阵列天线可调移相装置 |
CN106207320B (zh) * | 2015-04-29 | 2019-10-01 | 华为技术有限公司 | 移相器和天线 |
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CN106972265B (zh) * | 2017-04-28 | 2023-07-18 | 广州司南技术有限公司 | 基站天线的空间立体移相器 |
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US20170288306A1 (en) | 2017-10-05 |
CN104466405A (zh) | 2015-03-25 |
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US10446896B2 (en) | 2019-10-15 |
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