CN114976647A - Dielectric phase shifter for base station array antenna - Google Patents
Dielectric phase shifter for base station array antenna Download PDFInfo
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- CN114976647A CN114976647A CN202210496348.9A CN202210496348A CN114976647A CN 114976647 A CN114976647 A CN 114976647A CN 202210496348 A CN202210496348 A CN 202210496348A CN 114976647 A CN114976647 A CN 114976647A
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- phase shift
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- dielectric
- base station
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- 230000010363 phase shift Effects 0.000 claims abstract description 54
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
- H01Q3/36—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with variable phase-shifters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
The invention provides a dielectric phase shifter for a base station array antenna, which comprises a cavity, a phase shifting circuit arranged in the cavity, and a dielectric plate which is covered on the phase shifting circuit and can move along the length direction of the cavity. The phase shift unit comprises two phase shift units in the form of slow wave structures and two phase shift units in the form of U-shaped transmission lines. The phase shifting unit in the form of a slow wave structure is small in size, so that the dielectric phase shifter for the base station array antenna is beneficial to miniaturization; the input port and the output port of the phase shifting unit in the form of the U-shaped transmission line are positioned on the same side, so that the output ports can be ensured to be arranged on one side of the phase shifting circuit according to the magnitude sequence of the phase shifting amount, the problem that connecting lines are overlapped when the phase shifter is connected with a base station antenna is avoided, the wire arrangement of the connecting lines is simplified, and meanwhile, the length of the required connecting lines is shortened. The dielectric plate is used for adjusting the relative dielectric constant in the phase shift area so as to control the phase of the signal at each output port.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a phase shifter for a base station antenna, wherein output ports of the phase shifter are arranged according to the phase shift amount.
Background
In a communication system, a base station generally needs to rely on an array antenna formed by a certain number of antenna units to implement signal transceiving, and a phase shifter can play a role in controlling the radiation direction of the array antenna, thereby implementing coverage optimization of wireless signals of a cell. The specific working principle is that a phase shifter is utilized to construct specific phase difference among antenna units, so that electromagnetic waves radiated by the array antenna are superposed in a specific direction.
The existing phase shifter has the defects of unreasonable arrangement of output ports, large size and the like, the output ports which are arranged in a staggered mode not only need additional cables to compensate phase delay generated when the antennas are connected, but also can be overlapped in a staggered mode, the complexity of circuit arrangement is greatly increased, the production cost and the energy loss are increased, and the miniaturization of an antenna system is not facilitated.
Disclosure of Invention
The invention aims to: the defects of the prior art are overcome, and the dielectric phase shifter for the base station array antenna is provided with the output ports which are arranged according to the phase shift quantity.
In order to achieve the above object, the dielectric phase shifter for a base station array antenna provided by the present invention comprises a cavity, a phase shift circuit disposed in the cavity, and a dielectric plate covering the phase shift circuit and capable of moving along the length direction of the cavity, and is characterized in that: the phase shift circuit comprises two phase shift units in a slow wave structure form, two phase shift units in a U-shaped transmission line form, an input port and five output ports, wherein the input port and the third output port are directly connected, the second output port and the fourth output port are respectively connected with the input port through the phase shift units in the slow wave structure form on the corresponding side, the first output port and the fifth output port are respectively connected with the input port through the phase shift units in the U-shaped transmission line form on the corresponding side and the phase shift units in the slow wave structure form, and the input end and the output end of the phase shift units in the U-shaped transmission line form are positioned on the same side.
The phase-shifting unit in the slow-wave structure form has small size and large phase-shifting amount of unit size, and is beneficial to miniaturization of a circuit; the input end and the output end of the phase shifting unit in the form of the U-shaped transmission line are positioned on the same side, so that the compact arrangement can be realized, and meanwhile, the output ports of the phase shifter are ensured to be arranged on one side of the phase shifting circuit according to the magnitude sequence of the phase shift amount, so that the problem that connecting lines are overlapped when the phase shifter is connected with a base station antenna is avoided, the wire arrangement of the connecting lines is simplified, and meanwhile, the length of the required connecting lines is shortened.
The output ports of the dielectric phase shifter used for the base station array antenna correspond to the antenna units one by one according to spatial arrangement positions, so that the arrangement of connecting cables between the phase shifter and the antenna is greatly simplified, the length of the required cable is reduced to the greatest extent, the production cost is reduced, the overall size of an antenna system is reduced, and the possible additional energy loss caused by longer cables is avoided.
Drawings
The invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a dielectric phase shifter for a base station array antenna according to an embodiment of the present invention in a changed state;
fig. 2 is a schematic structural diagram of a dielectric phase shifter for a base station array antenna according to another variation state of the present invention;
in the figure, 1-phase shift circuit; 11-a phase shifting unit in the form of a slow-wave structure; a phase shift unit in the form of a 12-U transmission line; 2-a dielectric plate; 21-a rectangular notch; 3-a cavity; IN-input port; p1 — first output port; p2-second output port; p3-third output port; p4-fourth output port; p5-fifth output port.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in fig. 1 and fig. 2, a dielectric phase shifter for a base station array antenna according to the present invention includes a cavity 3, a phase shifting circuit 1 disposed in the cavity 3, and a dielectric plate 2 disposed over the phase shifting circuit 1 and movable along a length direction of the cavity 3. The phase shift circuit 1 includes an input port IN, a phase-fixed third output port P3 directly connected to the input port IN, four phase shift units, and four output ports (a first output port P1, a second output port P2, a fourth output port P4, and a fifth output port P5) connected to the phase shift units IN one-to-one correspondence. Specifically, the phase shift circuit 1 includes two phase shift units 11 IN the form of slow-wave structures and two phase shift units 12 IN the form of U-shaped transmission lines, the second output port P2 and the fourth output port P4 are respectively connected to the input port IN through the phase shift unit 11 IN the form of a slow-wave structure on the corresponding side, and the first output port P1 and the fifth output port P5 are respectively connected to the input port IN through the phase shift unit 12 IN the form of a U-shaped transmission line on the corresponding side and the phase shift unit 11 IN the form of a slow-wave structure.
IN this embodiment, the input port IN and the five output ports (P1, P2, P3, P4, P5) are located on the same side of the phase shifter. The signal inputted from the input port IN is divided into five routes and outputted from each output port, and the first to fifth output ports (P1, P2, P3, P4, P5) are arranged on one side of the phase shifter for the base station antenna IN order of magnitude of phase shift amount, and the phase shift amount of each output port is arranged IN an arithmetic progression.
The phase shift amounts of the first output port P1 and the fifth output port P5 are twice as large as those of the second output port P2 and the fourth output port P4, respectively.
The phase shift unit 11 in the form of a slow wave structure has small size, which is beneficial to the miniaturization of a phase shift circuit; the phase shifting unit 12 in the form of a U-shaped transmission line is composed of two common phase shifting units in the form of transmission lines, and the input end and the output end of the phase shifting units are located on the same side, so that the output ports of the phase shifters can be arranged on one side of the phase shifting circuit in sequence according to the magnitude of the phase shifting amount while realizing compact arrangement, so that the problem that connecting lines are overlapped when the phase shifters are connected with a base station antenna is avoided, the arrangement of the connecting lines is simplified, and the length of the required connecting lines is shortened.
In this embodiment, under the condition that the maximum movable distance of the dielectric plate 2 is fixed, the maximum phase shift amount of the phase shift unit 11 in the form of the slow-wave structure is twice that of the phase shift unit in the form of a single transmission line. The phase shift unit 12 in the form of a U-shaped transmission line is formed by bending a transmission line, and is equivalent to a phase shift unit in the form of two transmission lines connected in series, so that the maximum phase shift amount of the phase shift unit is consistent with that of the phase shift unit 11 in the form of a slow wave structure.
The dielectric plate 2 is provided with a rectangular notch for adjusting impedance matching. By moving the dielectric plate 2 along the length direction of the cavity, the area of each phase shift unit covered by the dielectric plate 2 can be changed, thereby realizing the phase adjustment. Fig. 1 and fig. 2 show schematic diagrams of a dielectric phase shifter for a base station array antenna provided by an embodiment of the invention in two extreme variation states.
Specifically, in the process that the sliding medium plate makes the phase shifter change from the state shown in fig. 1 to the state shown in fig. 2, the phase of the third output port P3 remains unchanged, the absolute values of the phase shift amounts of the other output ports increase continuously, and the ratio of the phase shift amounts of the respective ports remains unchanged, where the ratio is:
first output port P1: second output port P2: third output port P3: fourth output port P4: the fifth output port P5 is 2: 1: 0: -1: -2. Where the negative sign indicates that the phase of the output port is lagging.
The embodiment of the invention provides a dielectric phase shifter for a base station array antenna, and specific simulation performance parameters of the dielectric phase shifter are listed in the following table:
therefore, the output ports of the dielectric phase shifter for the base station array antenna are arranged on one side of the phase shifter in sequence according to the phase shift amount, and can correspond to the antenna units one by one according to spatial arrangement positions, so that the arrangement of connecting cables between the phase shifter and the array antenna is greatly simplified, the length of the required cables is reduced to the maximum extent, the production cost is favorably reduced, the overall size of an antenna system is reduced, and the possible additional energy loss caused by longer cables is avoided.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a dielectric phase shifter for basic station array antenna, includes cavity (3), sets up phase shift circuit (1) in cavity (3) and covers and establish on phase shift circuit (1) and can follow dielectric plate (2) that cavity length direction removed, its characterized in that: the phase shift circuit (1) comprises two phase shift units (11) IN the form of slow wave structures, two phase shift units (12) IN the form of U-shaped transmission lines, an input port (IN) and five output ports (P1, P2, P3, P4 and P5) which are positioned on the same side of the phase shifter, the input port (IN) and the third output port (P3) are directly connected, the second output port (P2) and the fourth output port (P4) are respectively connected with the input port (IN) through a phase shifting unit (11) IN a slow wave structure form at the corresponding side, the first output port (P1) and the fifth output port (P5) are respectively connected with the input port (IN) through a phase shifting unit (12) IN a U-shaped transmission line form at the corresponding side and a phase shifting unit (11) IN a slow wave structure form, the input end and the output end of the phase shifting unit (12) in the form of the U-shaped transmission line are positioned on the same side.
2. A dielectric phase shifter for a base station array antenna as claimed in claim 1, wherein: the first to fifth output ports (P1, P2, P3, P4, P5) are arranged on one side of the phase shifter for the base station antenna in order of magnitude of phase shift amount, and the phase shift amounts of the respective output ports are arranged in an arithmetic progression.
3. A dielectric phase shifter for a base station array antenna as claimed in claim 1, wherein: the phase shift amounts of the first output port (P1) and the fifth output port (P5) are twice that of the second output port (P2) and the fourth output port (P4), respectively.
4. A dielectric phase shifter for a base station array antenna as claimed in claim 1, wherein: the dielectric plate (2) capable of moving along the length direction of the cavity is used for adjusting the equivalent dielectric constant of each phase shifting unit in the phase shifting area so as to control the phase of a signal at each output port.
5. A dielectric phase shifter for a base station array antenna as claimed in claim 1, wherein: the dielectric plate (2) is provided with a rectangular notch (21) for adjusting impedance matching.
6. A dielectric phase shifter for a base station array antenna as claimed in claim 1, wherein: under the condition that the maximum movable distance of the dielectric plate (2) is fixed, the maximum phase shift amount of the phase shift unit (11) in the slow wave structure form is twice that of the phase shift unit in the single transmission line form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210496348.9A CN114976647A (en) | 2022-05-09 | 2022-05-09 | Dielectric phase shifter for base station array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210496348.9A CN114976647A (en) | 2022-05-09 | 2022-05-09 | Dielectric phase shifter for base station array antenna |
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| Publication Number | Publication Date |
|---|---|
| CN114976647A true CN114976647A (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210496348.9A Pending CN114976647A (en) | 2022-05-09 | 2022-05-09 | Dielectric phase shifter for base station array antenna |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921011A (en) * | 2015-12-28 | 2017-07-04 | 西安华为技术有限公司 | A kind of phase shifter and antenna |
| CN106972267A (en) * | 2017-04-28 | 2017-07-21 | 广州司南天线设计研究所有限公司 | A kind of space multistory phase shifter applied to antenna for base station |
| CN209133655U (en) * | 2018-12-05 | 2019-07-19 | 摩比科技（深圳）有限公司 | A kind of phase shifter and antenna for base station |
| CN110867630A (en) * | 2019-11-27 | 2020-03-06 | 武汉虹信通信技术有限责任公司 | Dielectric phase shifter |
| WO2022041621A1 (en) * | 2020-08-31 | 2022-03-03 | 京信通信技术(广州)有限公司 | Phaser and antenna |
-
2022
- 2022-05-09 CN CN202210496348.9A patent/CN114976647A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921011A (en) * | 2015-12-28 | 2017-07-04 | 西安华为技术有限公司 | A kind of phase shifter and antenna |
| CN106972267A (en) * | 2017-04-28 | 2017-07-21 | 广州司南天线设计研究所有限公司 | A kind of space multistory phase shifter applied to antenna for base station |
| CN209133655U (en) * | 2018-12-05 | 2019-07-19 | 摩比科技（深圳）有限公司 | A kind of phase shifter and antenna for base station |
| CN110867630A (en) * | 2019-11-27 | 2020-03-06 | 武汉虹信通信技术有限责任公司 | Dielectric phase shifter |
| WO2022041621A1 (en) * | 2020-08-31 | 2022-03-03 | 京信通信技术(广州)有限公司 | Phaser and antenna |
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