CN110867630B - Dielectric phase shifter - Google Patents
Dielectric phase shifter Download PDFInfo
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- CN110867630B CN110867630B CN201911199731.2A CN201911199731A CN110867630B CN 110867630 B CN110867630 B CN 110867630B CN 201911199731 A CN201911199731 A CN 201911199731A CN 110867630 B CN110867630 B CN 110867630B
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- phase shifter
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- 239000002184 metal Substances 0.000 claims abstract description 66
- 229910052751 metal Inorganic materials 0.000 claims abstract description 66
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 54
- 239000011889 copper foil Substances 0.000 claims description 54
- 238000009413 insulation Methods 0.000 claims description 4
- 238000010295 mobile communication Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 210000002414 leg Anatomy 0.000 description 5
- 230000010363 phase shift Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/18—Phase-shifters
-
- 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
Landscapes
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention relates to the technical field of mobile communication base station antennas, and provides a dielectric phase shifter, which comprises: the low-frequency microstrip line structure comprises a first dielectric plate, a second dielectric plate, a low-frequency stripline structure, a matching microstrip line and a metal cavity with one open end, wherein the low-frequency stripline structure is arranged in the metal cavity; an opening is formed in the side edge of the metal cavity, and the opening is far away from the opening; a first buckle is arranged on the first dielectric slab above the slow wave strip line structure, and a first clamping groove is arranged on the second dielectric slab below the slow wave strip line structure; the slow wave strip line structure is provided with a first chute; the first buckle penetrates through the first sliding chute and then is connected with the first clamping groove, so that the first medium plate and the second medium plate can simultaneously reciprocate linearly in a direction perpendicular to the opening; the matching microstrip line at the opening is used for feeding the slow wave strip line structure. The dielectric phase shifter needs a small stroke when the first dielectric plate and the second dielectric plate are pulled to slide, but the phase shifting amount is large, and the occupied 5G whole antenna position is small.
Description
Technical Field
The invention relates to the technical field of mobile communication base station antennas, in particular to a dielectric phase shifter.
Background
In mobile communication coverage, compared with a conventional mechanical downtilt antenna, the electrically tunable antenna is more flexible to adapt to modern complex scenes, and gradually becomes the first choice of the downtilt antenna. With the gradual development of 5G communication technology and the complexity of application environment, the 5G antenna with fixed tilt angle has not been able to meet the future development. Therefore, the electronic tuning technology is also applied to the 5G antenna in a straightforward manner, and the phase shifter is used as a key component of the electronic tuning technology, and the size and performance of the phase shifter directly affect the size and index of the 5G antenna.
The dielectric phase shifter mainly drives the dielectric plate covered on the strip line to slide, so that the length of the strip line covered with the dielectric is changed, and the phase is changed. In order to increase the phase shift amount of the phase shifter, the length of the change of the medium covering the transmission line needs to be increased.
However, lengthening the length variation range of the transmission line brings a series of technical difficulties of electrical performance stability such as the size, amplitude fluctuation, standing wave ratio, insertion loss and the like of the motor of the phase shifter. The existing dielectric phase shifter has the defects of small phase shifting amount, overlarge size and single adjusting mode.
Disclosure of Invention
Technical problem to be solved
In view of the technical defects and application requirements, the present application provides a dielectric phase shifter to solve the disadvantages of small phase shift amount and overlarge size of the existing dielectric phase shifter.
(II) technical scheme
In order to solve the above problems, the present invention provides a dielectric phase shifter, including: the slow wave microstrip line structure comprises a first dielectric plate, a second dielectric plate, a slow wave stripline structure, a matching microstrip line and a metal cavity with one open end, wherein the slow wave stripline structure is fixedly arranged in the metal cavity;
an opening is formed in the side edge of the metal cavity, and the opening is far away from the opening; a first buckle is arranged on the first dielectric slab above the slow wave strip line structure, and a first clamping groove is arranged on the second dielectric slab below the slow wave strip line structure; the slow wave strip line structure is provided with a first chute; the first buckle penetrates through the first sliding groove and then is connected with the first clamping groove, so that the first medium plate and the second medium plate can simultaneously reciprocate linearly in a direction perpendicular to the opening; the matching microstrip line arranged at the opening is used for feeding the slow wave strip line structure.
The slow wave strip line structure comprises a first body, and a first copper foil line and a second copper foil line which are symmetrically distributed about the first sliding groove are arranged on the first body.
The first copper foil wire and the second copper foil wire are arranged in a folded shape.
A second sliding groove is formed in the middle of the first copper foil wire, a third sliding groove is formed in the middle of the second copper foil wire, and the second sliding groove and the third sliding groove are symmetrically arranged relative to the first sliding groove;
the first medium plate is provided with two second buckles which are symmetrically arranged relative to the first buckle, and the second medium plate is provided with two second clamping grooves which are symmetrically arranged relative to the first clamping groove.
The starting point and the ending point of the first copper foil wire and the second copper foil wire are both provided with a first metal pad, and the first metal pad is provided with a first notch;
the matching microstrip line comprises a second body, a third copper foil line and a fourth copper foil line are arranged on the second body, and second metal pads matched with the first gaps are arranged at the termination points of the third copper foil line and the fourth copper foil line.
The metal cavity is arranged on the base plate, the opening is provided with a protruding structure, and the second body is provided with a second notch matched with the protruding structure.
Wherein, the protruding structure is provided with a heat insulation hole.
And the upper surface of the first dielectric plate and/or the lower surface of the second dielectric plate are/is uniformly distributed with bump structures.
And limiting grooves for placing the slow-wave strip line structures are arranged on two opposite sides in the metal cavity.
Wherein, the bottom of metal cavity is provided with a plurality of supporting legss in an integrated manner.
(III) advantageous effects
According to the dielectric phase shifter provided by the invention, the metal cavity can be fixedly arranged on a reflecting plate or a PCB of the 5G antenna, the first dielectric plate and the second dielectric plate are driven by an external power source to simultaneously move outwards relative to the slow wave strip line structure, at the moment, the slow wave strip line structure is fixed in the metal cavity, namely, the first dielectric plate and the second dielectric plate simultaneously move outwards of the metal cavity, so that the phase distribution in the 5G antenna is changed to realize beam shaping, and the feed is carried out on the slow wave strip line structure through the matching microstrip line arranged at the opening. The dielectric phase shifter needs a small stroke when the first dielectric plate and the second dielectric plate are pulled to slide, but the phase shift quantity is large, and the volume of the whole dielectric phase shifter occupies 5G of the position of the whole antenna; and the microstrip line is matched for feeding the slow-wave stripline structure, and no cable is required to be welded, so that the batch consistency and low cost are ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is an exploded view of a dielectric phase shifter according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a metal chamber provided in an embodiment of the present invention;
FIG. 3 is a side view of a metal chamber provided by an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a slow wave stripline structure provided in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a first dielectric plate according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a second dielectric plate according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a matching microstrip line provided in an embodiment of the present invention;
wherein, 1, a metal cavity; 11. supporting legs; 12. an opening; 13. a raised structure; 14. a heat insulation hole; 15. a limiting groove; 2. a slow wave stripline structure; 21. a first copper foil wire; 22. a first metal pad; 23. a first notch; 24. a first chute; 3. a first dielectric plate; 31. a first rectangular slot; 32. a first mounting hole; 33. a first buckle; 34. a second buckle; 35. a bump structure; 4. a second dielectric plate; 41. a second rectangular slot; 42. a second mounting hole; 43. a first card slot; 44. a second card slot; 5. matching a microstrip line; 51. a third copper foil wire; 52. a second metal pad; 53. a third metal pad; 54. a second notch.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, fig. 2, fig. 4, fig. 5, and fig. 6, a dielectric phase shifter according to an embodiment of the present invention includes: the slow wave microstrip line structure comprises a first dielectric plate 3, a second dielectric plate 4, a slow wave stripline structure 2, a matching microstrip line 5 and a metal cavity 1 with one open end, wherein the slow wave stripline structure 2 is fixedly arranged in the metal cavity 1;
the first dielectric plate 3 and the second dielectric plate 4 have the same size and are rectangular. The metal cavity 1 is in a hollow cuboid shape, and the left side of the metal cavity 1 is open;
the side edge of the metal cavity 1 is provided with an opening 12 in a U shape, and the opening 12 is arranged far away from the opening, namely the opening 12 is arranged close to the right side of the metal cavity 1; wherein, the metal cavity 1 is provided with two symmetrically arranged openings 12;
a first buckle 33 is arranged on the first dielectric slab 3 above the slow wave stripline structure 2, and a first clamping groove 43 is arranged on the second dielectric slab 4 below the slow wave stripline structure 2; a first chute 24 is arranged on the slow wave stripline structure 2;
the slow wave stripline structure 2 is rectangular, and the first card slot 43 is arranged along the length direction of the slow wave stripline structure 2. The first locking groove 43 is matched with the first buckle 33, and the first sliding groove 24 is matched with the first buckle 33;
the first buckle 33 passes through the first sliding chute 24 and then is connected with the first clamping groove 43, so that the first medium plate 3 and the second medium plate 4 can simultaneously reciprocate linearly in a direction perpendicular to the opening;
the first buckle 33 is positioned on the right side of the first dielectric plate 3, the first clamping groove 43 is positioned on the right side of the second dielectric plate 4, the left side of the first dielectric plate 3 is provided with a first mounting hole 32, the left side of the second dielectric plate 4 is provided with a second mounting hole 42, the first mounting hole 32 and the second mounting hole 42 are positioned outside the metal cavity 1, and an external power source drives the first dielectric plate 3 and the second dielectric plate 4 to move through the first mounting hole 32 and the second mounting hole 42;
the matching microstrip line 5 installed at the opening is used for feeding the slow wave stripline structure 2, namely, the external power supply feeds the slow wave stripline structure 2 through the matching microstrip line 5.
In the initial state, a part of the first dielectric plate 3, the entire slow wave stripline structure 2, and a part of the second dielectric plate 4 are located in the metal cavity 1.
In the embodiment of the present invention, the metal cavity 1 may be fixedly installed on a reflection board or a PCB of the 5G antenna, the first dielectric plate 3 and the second dielectric plate 4 are driven by an external power source to move outward relative to the slow wave stripline structure 2, at this time, the slow wave stripline structure 2 is fixed inside the metal cavity 1, that is, the first dielectric plate 3 and the second dielectric plate 4 move outward of the metal cavity 1, so as to change phase distribution in the 5G antenna to implement beam shaping, and the matching microstrip line 5 installed at the opening feeds the slow wave stripline structure 2. The dielectric phase shifter needs a small stroke when the first dielectric plate and the second dielectric plate are pulled to slide, but the phase shift quantity is large, and the volume of the whole dielectric phase shifter occupies 5G of the position of the whole antenna; no welding cable is needed for feeding the slow wave strip line structure 2 through the matching microstrip line 5, and the batch consistency and the low cost are ensured.
On the basis of the above embodiment, as shown in fig. 4, the slow-wave strip line structure includes a first body, and a first copper foil line 21 and a second copper foil line (not shown) are disposed on the first body and symmetrically distributed about the first sliding groove 24.
In the embodiment of the present invention, the starting point and the ending point of the first copper foil wire 21 are both located at the upper side edge of the first body, and the starting point and the ending point of the second copper foil wire are both located at the lower side edge of the first body. The first body is rectangular in shape, the first sliding groove 24 is arranged along the length direction of the first body, and the first sliding groove 24 is located at the middle position of the first body.
It should be noted that the first copper foil wire 21 and the second copper foil wire are both arranged in a folded shape.
On the basis of the above embodiment, as shown in fig. 5 and 6, a second sliding groove (not shown in the figure) is arranged in the middle of the first copper foil wire 21, a third sliding groove (not shown in the figure) is arranged in the middle of the second copper foil wire, and the second sliding groove and the third sliding groove are symmetrically arranged about the first sliding groove 24;
the first dielectric plate 3 is provided with two second latches 34 arranged symmetrically with respect to the first latch 33,
the second dielectric board 4 is provided with two second card slots 44 symmetrically arranged with respect to the first card slot 43.
It should be noted that the two second latches 34 are both located on the right side of the first dielectric slab 3, and the two second card slots 44 are both located on the right side of the second dielectric slab 4. Two first rectangular slots 31 are arranged on two sides of the second buckle 34, and two second rectangular slots 41 are arranged on two sides of the second clamping groove 44.
In the embodiment of the present invention, a second buckle 34 passes through the second sliding slot and is connected to a second locking slot 44; the other second buckle 34 passes through the third sliding slot and then is connected with the other second clamping slot 44.
On the basis of the above embodiment, the starting point and the ending point of the first copper foil wire 21 and the second copper foil wire are both provided with a first metal pad 22, and the first metal pad 22 is provided with a first notch 23; wherein, the first gap 23 needs to be metallized;
as shown in fig. 7, the matching microstrip line 5 includes a second body, a third copper foil line 51 and a fourth copper foil line (not shown in the figure) are disposed on the second body, and a second metal pad 52 adapted to the first notch 23 is disposed at each of the termination points of the third copper foil line 51 and the fourth copper foil line.
It should be noted that the starting point of the third copper foil line 51 is located at the lower side of the second body, the starting point of the third copper foil line 51 is provided with a third metal pad 53, and the ending point of the third copper foil line 51 is located at the upper side of the second body; the starting point of the fourth copper foil wire is positioned at the lower side of the second body, the starting point of the fourth copper foil wire is provided with a third metal pad 53, and the end point of the fourth copper foil wire is positioned at the upper side of the second body.
In the embodiment of the present invention, the second metal pad 52 of the third copper foil line 51 of the first matching microstrip line 5 is connected to the first notch on the first metal pad 22 at the starting point of the first copper foil line 21 in a matching manner; the second metal pad 52 of the fourth copper foil wire of the first matching microstrip line 5 is matched and connected with the first gap on the first metal pad 22 of the termination point of the first copper foil wire 21;
the second metal pad 52 of the third copper foil line 51 of the second matching microstrip line 5 is connected with the first gap on the first metal pad 22 at the starting point of the second copper foil line in a matching manner; the second metal pad 52 of the fourth copper foil wire of the second matching microstrip line 5 is connected in a matching manner with the first notch on the first metal pad 22 at the termination point of the second copper foil wire. An external feeding signal is inputted through the third metal pad 53.
On the basis of the above embodiment, as shown in fig. 2, a protruding structure 13 is disposed on the bottom plate of the metal cavity 1 and at the opening 12, and a second notch 54 adapted to the protruding structure 13 is disposed on the second body.
In the embodiment of the present invention, the matching microstrip line 5 is fixed on the metal cavity 1 through the matching installation of the second notch 54 and the protruding structure 13. The matching microstrip line 5 is arranged vertically to the bottom plate of the metal cavity 1. At this time, the matching microstrip line 5 is arranged perpendicular to the slow wave stripline structure 2.
The protruding structure 13 is provided with a heat insulation hole 14.
On the basis of the above embodiment, the bump structures 35 are uniformly distributed on the upper surface of the first dielectric plate 3 and/or the lower surface of the second dielectric plate 4.
In the embodiment of the present invention, the bump structures 35 on the first dielectric plate 3 abut against the upper inner wall of the metal cavity 1, and the bump structures 35 on the second dielectric plate 4 abut against the lower inner wall of the metal cavity 1, so as to ensure that the first dielectric plate 3 and the second dielectric plate 4 clamp the slow-wave stripline structure 2 and are located in the central position inside the metal cavity 1.
On the basis of the above embodiment, as shown in fig. 3, the two opposite sides inside the metal cavity 1 are provided with the limiting grooves 15 for placing the slow-wave stripline structure 2.
In the embodiment of the present invention, the two limiting grooves 15 are located at the same height, the limiting groove 15 is located at the middle position, and the shape of the limiting groove 15 may be rectangular. The slow wave stripline structure 2 is pushed into the metal cavity 1 along the limiting groove 15 through the opening.
On the basis of the above embodiment, the bottom of the metal cavity 1 is integrally provided with a plurality of supporting legs 11.
In the embodiment of the present invention, the number of the supporting legs 11 may be four, and the metal cavity is fixedly mounted on the reflection plate or the PCB of the 5G antenna through the supporting legs 11.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A dielectric phase shifter, comprising: the slow wave microstrip line structure comprises a first dielectric plate, a second dielectric plate, a slow wave stripline structure, a matching microstrip line and a metal cavity with one open end, wherein the slow wave stripline structure is fixedly arranged in the metal cavity;
an opening is formed in the side edge of the metal cavity, and the opening is far away from the opening; a first buckle is arranged on the first dielectric slab above the slow wave strip line structure, and a first clamping groove is arranged on the second dielectric slab below the slow wave strip line structure; the slow wave strip line structure is provided with a first chute; the first buckle penetrates through the first sliding groove and then is connected with the first clamping groove, so that the first medium plate and the second medium plate can simultaneously reciprocate linearly in a direction perpendicular to the opening; the matching microstrip line arranged at the opening is used for feeding the slow wave strip line structure;
the slow wave strip line structure comprises a first body, and a first copper foil line and a second copper foil line which are symmetrically distributed around the first sliding groove are arranged on the first body;
the starting point and the ending point of the first copper foil wire and the second copper foil wire are both provided with a first metal pad, and the first metal pad is provided with a first notch;
the matching microstrip line comprises a second body, a third copper foil line and a fourth copper foil line are arranged on the second body, and second metal pads matched with the first gaps are arranged at the termination points of the third copper foil line and the fourth copper foil line;
a protruding structure is arranged on the bottom plate of the metal cavity and positioned at the opening, and a second notch matched with the protruding structure is formed in the second body;
and the raised structure is provided with a heat insulation hole.
2. The dielectric phase shifter of claim 1, wherein the first copper foil wire and the second copper foil wire are each arranged in a folded shape.
3. The dielectric phase shifter as claimed in claim 2, wherein a second runner is provided in the middle of the first copper foil wire, a third runner is provided in the middle of the second copper foil wire, and the second runner and the third runner are symmetrically arranged with respect to the first runner;
the first medium plate is provided with two second buckles which are symmetrically arranged relative to the first buckle, and the second medium plate is provided with two second clamping grooves which are symmetrically arranged relative to the first clamping groove.
4. The dielectric phase shifter of claim 1, wherein bump structures are uniformly distributed on the upper surface of the first dielectric plate and/or the lower surface of the second dielectric plate.
5. The dielectric phase shifter of claim 1, wherein the metal cavity is provided with limiting grooves on opposite sides of the interior thereof for placing the slow wave stripline structure.
6. The dielectric phase shifter as recited in claim 1, wherein a plurality of support legs are integrally formed at a bottom of the metal cavity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199731.2A CN110867630B (en) | 2019-11-27 | 2019-11-27 | Dielectric phase shifter |
| PCT/CN2020/115138 WO2021103748A1 (en) | 2019-11-27 | 2020-09-14 | Dielectric phase shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199731.2A CN110867630B (en) | 2019-11-27 | 2019-11-27 | Dielectric phase shifter |
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| Publication Number | Publication Date |
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| CN110867630A CN110867630A (en) | 2020-03-06 |
| CN110867630B true CN110867630B (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911199731.2A Active CN110867630B (en) | 2019-11-27 | 2019-11-27 | Dielectric phase shifter |
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| CN (1) | CN110867630B (en) |
| WO (1) | WO2021103748A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110867630B (en) * | 2019-11-27 | 2021-06-11 | 中信科移动通信技术股份有限公司 | Dielectric phase shifter |
| CN111585024B (en) * | 2020-05-20 | 2023-03-31 | 中信科移动通信技术股份有限公司 | Dielectric phase shifter and 5G base station antenna |
| CN111668578A (en) * | 2020-07-06 | 2020-09-15 | 武汉虹信通信技术有限责任公司 | Dielectric phase shifter and base station antenna |
| US20240014533A1 (en) * | 2020-07-24 | 2024-01-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Stripline phase shifter |
| CN111883880B (en) * | 2020-07-31 | 2021-10-26 | 武汉虹信科技发展有限责任公司 | Phase shifter and base station antenna |
| CN112003017B (en) * | 2020-07-31 | 2023-04-14 | 中信科移动通信技术股份有限公司 | Phase-shifting feed device of array antenna and array antenna |
| CN212542636U (en) * | 2020-08-12 | 2021-02-12 | 昆山恩电开通信设备有限公司 | High-performance cavity phase shifter applied to 5G system |
| CN114976647A (en) * | 2022-05-09 | 2022-08-30 | 南通大学 | Dielectric phase shifter for base station array antenna |
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| CN203721853U (en) * | 2014-02-27 | 2014-07-16 | 武汉虹信通信技术有限责任公司 | Novel cavity phase shifter |
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| CN109802234A (en) * | 2019-01-30 | 2019-05-24 | 京信通信技术(广州)有限公司 | Antenna for base station and its phase shift feeder equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110867630B (en) * | 2019-11-27 | 2021-06-11 | 中信科移动通信技术股份有限公司 | Dielectric phase shifter |
-
2019
- 2019-11-27 CN CN201911199731.2A patent/CN110867630B/en active Active
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2020
- 2020-09-14 WO PCT/CN2020/115138 patent/WO2021103748A1/en active Application Filing
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|---|---|---|---|---|
| CN203721853U (en) * | 2014-02-27 | 2014-07-16 | 武汉虹信通信技术有限责任公司 | Novel cavity phase shifter |
| JP2016072658A (en) * | 2014-09-26 | 2016-05-09 | マスプロ電工株式会社 | Antenna device and RFID system |
| CN207368177U (en) * | 2017-11-16 | 2018-05-15 | 深圳国人通信股份有限公司 | A kind of antenna for base station broadband medium phase shifter |
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| CN109802234A (en) * | 2019-01-30 | 2019-05-24 | 京信通信技术(广州)有限公司 | Antenna for base station and its phase shift feeder equipment |
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| Publication number | Publication date |
|---|---|
| WO2021103748A1 (en) | 2021-06-03 |
| CN110867630A (en) | 2020-03-06 |
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