CN116995432A - Phase shifting device, assembling method thereof and base station antenna - Google Patents
Phase shifting device, assembling method thereof and base station antenna Download PDFInfo
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- CN116995432A CN116995432A CN202311244054.8A CN202311244054A CN116995432A CN 116995432 A CN116995432 A CN 116995432A CN 202311244054 A CN202311244054 A CN 202311244054A CN 116995432 A CN116995432 A CN 116995432A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 210000001503 joint Anatomy 0.000 claims abstract description 53
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000003032 molecular docking Methods 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000004378 air conditioning Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000000306 component Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
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- 239000000853 adhesive Substances 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000003466 welding 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
- H01Q3/32—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0087—Apparatus or processes specially adapted for manufacturing antenna arrays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
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Abstract
The application relates to a phase shifter device and an assembling method thereof and a base station antenna, wherein the phase shifter device comprises at least two phase shifters which are sequentially arranged along the longitudinal direction, the at least two phase shifters can be respectively and independently processed and are mutually connected and combined through a connecting component to realize a cavity with longer length, thereby solving the defects of processing precision reduction, difficult production, high cost and the like caused by overlong length of the cavity, and the processing precision of the conductive cavity of each phase shifter can be correspondingly ensured after the processing precision of the conductive cavity of each phase shifter is ensured; in addition, the feed butt joint parts and the common ground butt joint parts of the two adjacent phase shifters are all positioned outside the conductive cavity, and have enough large operation space to adopt the connecting component to carry out interconnection, so that the operation is more convenient, the assembly efficiency is higher, and after connection, microstrip line transmission structures are formed by cooperation, namely, the microstrip line transmission structures are converted into open microstrip line transmission structures to realize the connection of the two adjacent phase shifters, so that signals of the two adjacent phase shifters are stably and reliably transmitted.
Description
Technical Field
The present application relates to the field of antenna technologies, and in particular, to a phase shifting device, an assembling method thereof, and a base station antenna.
Background
The phase shifter is one of core components of the base station antenna, the performance of the base station antenna is directly determined by the advantages and disadvantages of the phase shifter, and further the coverage quality of a network is affected, and the multi-port dielectric phase shifter is widely applied to the base station antenna.
The phase shifter in the related art generally includes a cavity, a feeding network disposed inside the cavity, and a phase shifting medium. With the popularization of the green efficient antenna, the low-loss feed network becomes one of core technologies of the base station antenna. The length of the cavity of the phase shifter is prolonged, so that each output port of the phase shifter is close to a corresponding radiation unit, the length of the cable is greatly shortened, the loss of the cable can be effectively reduced, and the loss of a feed network is reduced.
However, for low-frequency or high-gain array antennas, the length of the array antenna is long, and the length of the phase shifter needs to be lengthened, which has the following problems: the processing difficulty, processing precision and processing cost of the components such as the cavity and the feed network of the phase shifter can be correspondingly increased along with the increase of the length dimension of the phase shifter, and when the dimensional precision of the cavity and the feed network is reduced, the performance consistency of the phase shifter is reduced.
Disclosure of Invention
Based on this, it is necessary to overcome the defects of the prior art, and to provide a phase shifting device, an assembling method thereof and a base station antenna, which can facilitate processing and assembling, improve assembling efficiency and improve product performance.
A phase shifting apparatus, the phase shifting apparatus comprising:
the phase shifters are sequentially arranged at intervals along the longitudinal direction of the phase shifters, and each phase shifter comprises a conductive cavity and a feed network penetrating through the conductive cavity; the feed network is provided with a feed butt joint part extending out of the conductive cavity, the conductive cavity is provided with a common floor, and the common floor is provided with a common ground butt joint part extending out of the conductive cavity; a kind of electronic device with high-pressure air-conditioning system
The connecting assembly comprises a first conductive piece and a second conductive piece, the feed butt joint parts of the adjacent two phase shifters are electrically connected through the first conductive piece, the common ground butt joint parts of the adjacent two phase shifters are electrically connected through the second conductive piece, and the connecting assembly, the feed butt joint parts of the adjacent two phase shifters and the common ground butt joint parts of the adjacent two phase shifters are matched to form a microstrip line transmission structure.
In one embodiment, the first conductive elements are respectively coupled with or directly connected with the feed butt joint parts of two adjacent phase shifters; the second conductive pieces are respectively coupled with or directly connected with the common ground butting parts of the two adjacent phase shifters.
In one embodiment, the first conductive element is configured as a first coupling tab; the second conductive member is configured as a second coupling piece.
In one embodiment, the opposite sides of the feed butt joint part are respectively provided with the first conductive pieces, or one side of the feed butt joint part is provided with the first conductive pieces; the second conductive pieces are respectively arranged on two opposite sides of the common-ground butt joint part, or the second conductive pieces are arranged on one side of the common-ground butt joint part.
In one embodiment, the phase shifting device further includes a first insulating layer disposed on the first conductive member and facing one side of the feed butt joint portion, and a second insulating layer disposed on the second conductive member and facing one side of the common ground butt joint portion.
In one embodiment, the thickness of the first insulating layer and the second insulating layer is set to be less than or equal to 0.5mm each.
In one embodiment, the common floor separates the conductive cavities to form two cavities arranged in parallel, two feed networks of each phase shifter are respectively arranged in the two cavities in a penetrating manner, and two feed butt joint parts of one phase shifter are respectively electrically connected with two feed butt joint parts of the other adjacent phase shifter through the first conductive piece.
The base station antenna comprises at least one phase shifting device, a reflecting plate and at least one antenna array, wherein the phase shifting device and the antenna array are correspondingly arranged and connected to the reflecting plate.
In one embodiment, the radiation units of the antenna array are sequentially arranged along the longitudinal direction; and each port of the phase shifting device is arranged corresponding to each radiating element of the antenna array.
In one embodiment, the surface of the co-floor is perpendicular to the surface of the reflecting plate; alternatively, the surface of the co-floor is parallel to the surface of the reflecting plate.
A method of assembling a base station antenna, the method comprising:
at least two conductive cavities of the phase shifting device are assembled and fixed on the back surface of the reflecting plate at intervals along the longitudinal direction, then the feed butt joint parts of two adjacent phase shifters are electrically connected through a first conductive piece, and the common ground butt joint parts of the two adjacent phase shifters are electrically connected through a second conductive piece.
In one embodiment, the step of mounting at least two conductive cavities of the phase shifting device to the back surface of the reflective plate comprises: the plate surface of the common floor is fixedly arranged on the back surface of the reflecting plate in a mode of being perpendicular to the plate surface of the reflecting plate.
The phase shifting device, the assembly method thereof and the base station antenna comprise at least two phase shifters which are sequentially arranged along the longitudinal direction, wherein the at least two phase shifters can be processed independently and are mutually connected and combined together through the connecting component, and a cavity with a longer length is realized, so that the defects of processing precision reduction, difficult production, high cost and the like caused by overlong length of the cavity are overcome, and the processing precision of the conductive cavity of each phase shifter can be correspondingly ensured after the processing precision of the conductive cavity of each phase shifter is ensured; in addition, the feed butt joint parts and the common ground butt joint parts of the two adjacent phase shifters are all positioned outside the conductive cavity, and have enough large operation space to adopt the connecting component to carry out interconnection, so that the operation is more convenient, the assembly efficiency is higher, and after connection, microstrip line transmission structures are formed by cooperation, namely, the microstrip line transmission structures are converted into open microstrip line transmission structures to realize the connection of the two adjacent phase shifters, so that signals of the two adjacent phase shifters are stably and reliably transmitted.
Drawings
Fig. 1 is a view angle structure diagram of a base station antenna according to an embodiment of the present application.
Fig. 2 is another view block diagram of the structure shown in fig. 1.
Fig. 3 is a schematic diagram of a phase shifter in the structure shown in fig. 1.
Fig. 4 is an enlarged structural view of fig. 3 at a.
Fig. 5 is a sectional view of the phase shifting device in the structure shown in fig. 1.
Fig. 6 is an enlarged structural view of fig. 5 at B.
10. A phase shifting device; 11. a phase shifter; 111. a conductive cavity; 1111. a chamber; 112. a feed network; 1121. a power feeding butt joint part; 113. a co-floor; 1131. a common ground docking portion; 12. a connection assembly; 121. a first conductive member; 122. a second conductive member; 13. a second insulating layer; 20. a reflection plate; 30. an antenna array; 31. and a radiation unit.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
Referring to fig. 1 to 6, fig. 1 is a view block diagram illustrating a base station antenna according to an embodiment of the present application. Fig. 2 shows another view block diagram of the structure shown in fig. 1. Fig. 3 shows a schematic diagram of the phase shifting apparatus 10 in the structure shown in fig. 1. Fig. 4 shows an enlarged structural view of fig. 3 at a. Fig. 5 shows a sectional structural view of the phase shifting apparatus 10 in the structure shown in fig. 1. Fig. 6 shows an enlarged structural view of fig. 5 at B. In one embodiment of the present application, a phase shifter 10 is provided, where the phase shifter 10 includes: at least two phase shifters 11 and a connection assembly 12 correspondingly disposed between the adjacent two phase shifters 11. At least two phase shifters 11 are sequentially arranged at intervals along the longitudinal direction (as shown by double arrow L in any one of fig. 1 to 3), and each phase shifter 11 includes a conductive cavity 111 and a feed network 112 penetrating inside the conductive cavity 111. The feed network 112 is provided with a feed docking portion 1121 protruding outside the conductive cavity 111, the conductive cavity 111 is provided with a common floor 113, and the common floor 113 is provided with a common ground docking portion 1131 protruding outside the conductive cavity 111. The connecting assembly 12 includes a first conductive member 121 and a second conductive member 122. The feed butt joint portions 1121 of two adjacent phase shifters 11 are electrically connected through the first conductive member 121, and the common ground butt joint portions 1131 of two adjacent phase shifters 11 are electrically connected through the second conductive member 122. The connection assembly 12, the feed butt joint 1121 of the two adjacent phase shifters 11, and the common ground butt joint 1131 of the two adjacent phase shifters 11 cooperate to form a microstrip line transmission structure.
The phase shifter 11 device comprises at least two phase shifters 11 which are sequentially arranged along the longitudinal direction, wherein the at least two phase shifters 11 can be processed independently and are connected and combined together through the connecting component 12, so that a cavity with a longer length is realized, the defects of reduced processing precision, difficult production, high cost and the like caused by overlong cavity length are overcome, and the processing precision of the conductive cavity 111 of each phase shifter 11 can be ensured, and the product performance can be correspondingly ensured; in addition, the feed butting portion 1121 and the common ground butting portion 1131 of the two adjacent phase shifters 11 are both located outside the conductive cavity 111, and have a large enough operation space to connect with each other by adopting the connection assembly 12, so that the operation is relatively convenient, the assembly efficiency is relatively high, and after connection, microstrip line transmission structures are formed by cooperation, that is, the microstrip line transmission structures are converted into open microstrip line transmission structures, so that the connection of the two adjacent phase shifters 11 is realized, and signals of the two adjacent phase shifters 11 are stably and reliably transmitted.
The conductive cavity 111 may be a metal cavity, or may include a dielectric body and a metal layer disposed on an outer surface and an inner surface of the dielectric body.
It should be noted that the number of phase shifters 11 of one phase shifter 10 includes, but is not limited to, two, three, four, five or other numbers, and may be flexibly set and adjusted according to practical requirements. The number of phase shifters 11 of each phase shifter 10 may be the same or different. Wherein, when the number of the phase shifters 11 of one phase shifter 10 is two, the connection assembly 12 is correspondingly set to one; when the phase shifters 11 of one phase shifting device 10 are provided in three, the connection members 12 are provided in two correspondingly; when the phase shifters 11 of one phase shifting device 10 are set to four, the connection members 12 are correspondingly set to three.
Referring to fig. 3 to 6, in the present embodiment, two phase shifters 11 of one phase shifter 10 are specifically provided for example, but the present application is not limited thereto. Wherein when the number of phase shifters 11 combined to form one phase shifter 10 is two, the two phase shifters 11 are arranged at intervals in the longitudinal direction thereof to form an interval region, each phase shifter 11 is provided with a feeding butt joint 1121 protruding outside the conductive cavity 111 and a common ground butt joint 1131. The connection assembly 12 is provided as one, the connection assembly 12, the feeding butting portion 1121 and the common grounding butting portion 1131 are all located in the interval area, the first conductive piece 121 of the connection assembly 12 is respectively connected with the two feeding butting portions 1121, and the second conductive piece 122 of the connection assembly 12 is respectively connected with the two common grounding butting portions 1131.
It should be noted that, the "feeding docking portion 1121" may be a part of the feeding network 112, that is, the "feeding docking portion 1121" and the other part of the feeding network 112 "are integrally formed; or may be a separate component from the other portions of the feed network 112, i.e., the feed docking portion 1121 may be manufactured separately and then combined with the other portions of the feed network 112 into a single piece.
It should be noted that, the "common-ground plate 113" may be a part of the "conductive cavity 111", that is, the "ground common-ground plate 113" is integrally formed with the "other part of the conductive cavity 111"; or a separate component which is separable from the other part of the conductive cavity 111, namely, the common floor 113 can be independently manufactured and then combined with the other part of the conductive cavity 111 into a whole.
Note that, the "common ground butting portion 1131" may be a part of the common floor 113, that is, the "common ground butting portion 1131" and the "other part of the common floor 113" are integrally manufactured; or may be a separate component from the other portions of the common floor 113, i.e., the common ground interface 1131 may be manufactured separately and then integrated with the other portions of the common floor 113.
Referring to fig. 4 and 6, in one embodiment, the first conductive members 121 are respectively coupled to or directly connected to the feed interfacing portions 1121 of the adjacent two phase shifters 11; the second conductive members 122 are respectively coupled to or directly connected to the common ground interfaces 1131 of the adjacent two phase shifters 11.
It should be noted that the coupling connection means that the two conductive members are not connected to each other in a direct electrical contact manner, but are provided with a gap or are separated from each other by an insulating member, for example, and the energy transmission is achieved by the coupling manner.
In addition, the direct connection means that the two conductive members are electrically connected through physical contact, and the two conductive members are electrically connected through mechanical connection, or are connected and fixed through mutual bonding of conductive adhesive, or can be connected through welding. The mechanical connection mode includes, but is not limited to, the connection of fasteners such as metal screws, metal pins, metal rivets and the like.
Referring to fig. 4 and 6, in one embodiment, the first conductive element 121 is configured as a first coupling piece; the second conductive member 122 is provided as a second coupling piece. Thus, the first conductive element 121 is configured as a first coupling piece, so that the coupling amount between the feed butt joint portions 1121 of the two adjacent phase shifters 11 is larger, and the signal transmission effect is good; in addition, the second conductive member 122 is configured as a second coupling piece, so that the coupling amount between the common ground butting portions 1131 of the adjacent two phase shifters 11 is large, and the common ground effect is good.
Referring to fig. 4 and fig. 6, in one embodiment, first conductive members 121 are disposed on opposite sides of the feeding docking portion 1121; the opposite sides of the common ground docking portion 1131 are respectively provided with the second conductive members 122. In this way, opposite sides of the feeding docking portion 1121 are respectively coupled to the first conductive member 121, in other words, opposite sides of the feeding docking portion 1121 are respectively coupled to the first conductive member 121, so that the size of the surface of the first conductive member 121 can be effectively reduced. Similarly, opposite sides of the common-ground butting portion 1131 are respectively coupled to the second conductive member 122, in other words, opposite sides of the common-ground butting portion 1131 are respectively coupled to the second conductive member 122, so that the surface size of the second conductive member 122 can be effectively reduced.
Of course, as some alternatives, one side of the feeding docking portion 1121 is provided with the first conductive member 121, and the other side omits the first conductive member 121. In addition, one side of the common ground butting portion 1131 is provided with the second conductive member 122, and the other side omits the second conductive member 122.
Referring to fig. 4 and 6, in one embodiment, the phase shifting device 10 further includes a first insulating layer (not shown) disposed on the first conductive member 121 and facing one side of the feeding docking portion 1121, and a second insulating layer 13 disposed on the second conductive member 122 and facing one side of the common-ground docking portion 1131. Thus, under the action of the first insulating layer, the first conductive piece 121 is respectively in insulating fit with the feed butt joint parts 1121 of the two adjacent phase shifters 11, so as to realize coupling connection with the feed butt joint parts 1121 of the two phase shifters 11 respectively; under the action of the second insulating layer 13, the second conductive piece 122 is respectively in insulating fit with the common-ground butting parts 1131 of the two adjacent phase shifters 11, so as to realize coupling connection with the common-ground butting parts 1131 of the two phase shifters 11 respectively.
In some embodiments, the first insulating layer and the second insulating layer 13 each include, but are not limited to, an insulating film or an insulating sheet.
In some embodiments, when the opposite sides of the feeding docking portion 1121 are each provided with one first conductive member 121, the opposite sides of the feeding docking portion 1121 are each provided with a first insulating layer, and are connected to the first conductive members 121 through the first insulating layers. In addition, when one second conductive member 122 is disposed on each of the opposite sides of the common-ground butting portion 1131, each of the opposite sides of the common-ground butting portion 1131 is provided with a second insulating layer 13, and is connected to the second conductive member 122 through the second insulating layer 13.
In one embodiment, the thickness of each of the first insulating layer and the second insulating layer 13 is set to be less than or equal to 0.5mm, for example, 0.4mm, 0.3mm, 0.2mm, 0.1mm, or the like. In this way, the thickness of the first insulating layer and the second insulating layer 13 are sufficiently small, so that the first conductive element 121 and the feed butt joint portion 1121 have a better coupling effect, and the second conductive element 122 and the common ground butt joint portion 1131 have a better coupling effect.
Of course, as some alternatives, the thickness of the first insulating layer and the second insulating layer 13 may be any value greater than 0.5mm. Alternatively, the thickness of the first insulating layer is the same as that of the second insulating layer 13, that is, the first insulating layer and the second insulating layer are processed by using a film material with the same thickness. Of course, the thicknesses of the first insulating layer and the second insulating layer 13 may also be different, that is, the film materials with different thicknesses may be processed to obtain the first insulating layer and the second insulating layer, and how to set the first insulating layer and the second insulating layer may be flexibly adjusted and set according to actual requirements is not limited herein.
Referring to fig. 4 and fig. 6, in one embodiment, the common plate 113 separates the conductive cavity 111 to form two cavities 1111 arranged in parallel, two feed networks 112 of each phase shifter 11 are respectively disposed in the two cavities 1111, and two feed butt joint portions 1121 of one phase shifter 11 are respectively electrically connected to two feed butt joint portions 1121 of the adjacent other phase shifter 11 through the first conductive member 121. In this way, the feed network 112 of one of the chambers 1111 is responsible for transmission of one of the polarized signals, and the feed network 112 of the other chamber 1111 is responsible for transmission of the other polarized signal, thereby realizing transmission of the dual polarized signals.
In some embodiments, the conductive cavity 111 is provided as a chamber 1111 and the feed network 112 is provided as a corresponding chamber for transmission of single polarized signals.
In one embodiment, the phase shifting device 10 further comprises a phase shifting dielectric plate (not shown) movably disposed inside the conductive cavity 111. Thus, the phase can be adjusted by adjusting the position of the phase-shifting dielectric plate, and the effect of changing the direction of the antenna beam is achieved.
Referring to fig. 1, fig. 4 and fig. 6, in one embodiment, a base station antenna includes at least one phase shifter 10, a reflector 20 and at least one antenna array 30 according to any of the above embodiments, where the phase shifter 10 and the antenna array 30 are disposed corresponding to each other and connected to the reflector 20.
The above base station antenna, the phase shifter 10 includes at least two phase shifters 11 sequentially disposed along a longitudinal direction, where the at least two phase shifters 11 can be processed independently, and are connected and combined together by the connection component 12, so as to implement a cavity with a longer length, thereby solving the defects of reduced processing precision, difficult production, high cost and the like caused by overlong length of the cavity, and ensuring the processing precision of the conductive cavity 111 of each phase shifter 11, and accordingly ensuring the product performance; in addition, the feed butting portion 1121 and the common ground butting portion 1131 of the two adjacent phase shifters 11 are both located outside the conductive cavity 111, and have a large enough operation space to connect with each other by adopting the connection assembly 12, so that the operation is relatively convenient, the assembly efficiency is relatively high, and after connection, microstrip line transmission structures are formed by cooperation, that is, the microstrip line transmission structures are converted into open microstrip line transmission structures, so that the connection of the two adjacent phase shifters 11 is realized, and signals of the two adjacent phase shifters 11 are stably and reliably transmitted.
Referring to fig. 1 to 3, in one embodiment, the radiation units 31 of the antenna array 30 are sequentially disposed along a longitudinal direction (as shown in L of fig. 1 to 3). Alternatively, the antenna array 30 and the phase shifting device 10 are respectively located on opposite sides of the reflecting plate 20.
Referring to fig. 1 to 3, in one embodiment, each output port of the phase shifting device 10 corresponds to an input port of each radiating element 31 of the antenna array 30, and is electrically connected to the corresponding output port through a cable.
In one embodiment, the plate surface of the common plate 113 is perpendicular to the plate surface of the reflection plate 20. Thus, when the panel surface of the common floor 113 is perpendicular to the panel surface of the reflective plate 20, in the process of connecting the two adjacent phase shifters 11 by using the connection assembly 12, the first conductive member 121 is inserted perpendicular to the panel surface direction of the reflective plate 20 and connected to the feeding butt joint portion 1121 of the two adjacent phase shifters 11, and the second conductive member 122 is inserted perpendicular to the panel surface direction of the reflective plate 20 and connected to the feeding butt joint portion 1121 of the two adjacent phase shifters 11, so that the assembly operation is more convenient.
In another embodiment, the surface of the common plate 113 is parallel to the surface of the reflection plate 20, for example.
Referring to fig. 1 to 3, in one embodiment, the antenna array 30 is set to two columns, the operating frequency ranges are 690MHz-960MHz, each column of the antenna array 30 is provided with 6 radiating elements 31, the distance between two adjacent radiating elements 31 is set to 260mm, the length of the antenna array 30 is set to 1500mm, and the length of the phase shifter 10 is set to 1400mm.
Referring to fig. 1 to 6, in one embodiment, a method for assembling a base station antenna according to any one of the above embodiments includes:
at least two conductive cavities 111 of the phase shifter 10 are assembled and fixed on the back surface of the reflecting plate 20 at intervals in sequence along the longitudinal direction, then the feeding butt joint portions 1121 of two adjacent phase shifters 11 are electrically connected through the first conductive piece 121, and the common ground butt joint portions 1131 of two adjacent phase shifters 11 are electrically connected through the second conductive piece 122.
The assembly method of the base station antenna comprises the steps that at least two phase shifters 11 are sequentially arranged along the longitudinal direction, the at least two phase shifters 11 can be processed independently and are connected and combined together through the connecting assembly 12, and a cavity with a longer length is realized, so that the defects of reduced processing precision, difficult production, high cost and the like caused by overlong cavity length are overcome, and the processing precision of the conductive cavity 111 of each phase shifter 11 can be ensured, and the product performance can be correspondingly ensured; in addition, the feed butting portion 1121 and the common ground butting portion 1131 of the two adjacent phase shifters 11 are both located outside the conductive cavity 111, and have a large enough operation space to connect with each other by adopting the connection assembly 12, so that the operation is relatively convenient, the assembly efficiency is relatively high, and after connection, microstrip line transmission structures are formed by cooperation, that is, the microstrip line transmission structures are converted into open microstrip line transmission structures, so that the connection of the two adjacent phase shifters 11 is realized, and signals of the two adjacent phase shifters 11 are stably and reliably transmitted.
In addition, since the at least two conductive cavities 111 of the phase shifter 10 are assembled and fixed on the back surface of the reflecting plate 20 at intervals in sequence in the longitudinal direction, and then are respectively connected with the two adjacent phase shifters 11 through the connecting assembly 12, the assembling effect can be more stable and reliable.
In one embodiment, the step of assembling at least two conductive cavities 111 of the phase shifting device 10 to the back surface of the reflective plate 20 includes: the plate surface of the common plate 113 is fixedly installed on the back surface of the reflection plate 20 so as to be perpendicular to the plate surface of the reflection plate 20. Therefore, a larger operation space can be provided for the subsequent assembly operation of the two adjacent phase shifters 11 and the connecting assembly 12, and the assembly is more convenient.
In the description of the present application, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (12)
1. A phase shifting device, characterized in that the phase shifting device comprises:
the phase shifters are sequentially arranged at intervals along the longitudinal direction of the phase shifters, and each phase shifter comprises a conductive cavity and a feed network penetrating through the conductive cavity; the feed network is provided with a feed butt joint part extending out of the conductive cavity, the conductive cavity is provided with a common floor, and the common floor is provided with a common ground butt joint part extending out of the conductive cavity; a kind of electronic device with high-pressure air-conditioning system
The connecting assembly comprises a first conductive piece and a second conductive piece, the feed butt joint parts of the adjacent two phase shifters are electrically connected through the first conductive piece, the common ground butt joint parts of the adjacent two phase shifters are electrically connected through the second conductive piece, and the connecting assembly, the feed butt joint parts of the adjacent two phase shifters and the common ground butt joint parts of the adjacent two phase shifters are matched to form a microstrip line transmission structure.
2. The phase shifting device according to claim 1, wherein the first conductive members are respectively coupled to or directly connected to the feed interfacing portions of the adjacent two phase shifters; the second conductive pieces are respectively coupled with or directly connected with the common ground butting parts of the two adjacent phase shifters.
3. The phase shifting device of claim 2, wherein the first conductive member is provided as a first coupling tab; the second conductive member is configured as a second coupling piece.
4. A phase shifting device according to claim 3, wherein the opposite sides of the feed docking portion are respectively provided with the first conductive member, or one side of the feed docking portion is provided with the first conductive member; the second conductive pieces are respectively arranged on two opposite sides of the common-ground butt joint part, or the second conductive pieces are arranged on one side of the common-ground butt joint part.
5. The phase shifting device of claim 3, further comprising a first insulating layer disposed on the first conductive member opposite one of the sides of the feed butt joint, and a second insulating layer disposed on the second conductive member opposite one of the sides of the common ground butt joint.
6. The phase shifting device according to claim 5, wherein the thickness of each of the first insulating layer and the second insulating layer is set to be less than or equal to 0.5mm.
7. The phase shifting device according to claim 1, wherein the common floor separates the conductive cavities to form two cavities arranged in parallel, the two feed networks of each phase shifter are respectively arranged in the two cavities in a penetrating way, and two feed butt joint parts of one phase shifter are respectively electrically connected with two feed butt joint parts of the other adjacent phase shifter through the first conductive piece.
8. A base station antenna, characterized in that it comprises at least one phase shifting device according to any one of claims 1 to 7, a reflecting plate and at least one antenna array, said phase shifting device being arranged in correspondence with said antenna array and being connected to said reflecting plate.
9. The base station antenna of claim 8, wherein each radiating element of the antenna array is disposed sequentially along the longitudinal direction; and each port of the phase shifting device is arranged corresponding to each radiating element of the antenna array.
10. The base station antenna of claim 8, wherein the panel of the common floor is perpendicular to the panel of the reflector plate; alternatively, the surface of the co-floor is parallel to the surface of the reflecting plate.
11. A method of assembling a base station antenna according to any of claims 8 to 10, wherein the method of assembling comprises:
at least two conductive cavities of the phase shifting device are assembled and fixed on the back surface of the reflecting plate at intervals along the longitudinal direction, then the feed butt joint parts of two adjacent phase shifters are electrically connected through a first conductive piece, and the common ground butt joint parts of the two adjacent phase shifters are electrically connected through a second conductive piece.
12. The method of assembling a base station antenna according to claim 11, wherein the step of assembling at least two conductive cavities of the phase shifting device on the back surface of the reflecting plate comprises: the plate surface of the common floor is fixedly arranged on the back surface of the reflecting plate in a mode of being perpendicular to the plate surface of the reflecting plate.
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| CN202311244054.8A CN116995432B (en) | 2023-09-26 | 2023-09-26 | Phase shifting device, assembling method thereof and base station antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311244054.8A CN116995432B (en) | 2023-09-26 | 2023-09-26 | Phase shifting device, assembling method thereof and base station antenna |
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| CN116995432A true CN116995432A (en) | 2023-11-03 |
| CN116995432B CN116995432B (en) | 2024-01-26 |
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| CN111564681A (en) * | 2020-06-19 | 2020-08-21 | 京信通信技术(广州)有限公司 | Phase shifter and antenna |
| US20200303838A1 (en) * | 2017-12-11 | 2020-09-24 | Huawei Technologies Co., Ltd. | Feeding Device, Antenna, And Electronic Device |
| CN115663423A (en) * | 2022-12-26 | 2023-01-31 | 华南理工大学 | Antenna device and combined phase shifter |
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| CN206789668U (en) * | 2017-06-19 | 2017-12-22 | 京信通信系统（中国）有限公司 | A kind of phase shifter and antenna with radio frequency connector |
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| US20200303838A1 (en) * | 2017-12-11 | 2020-09-24 | Huawei Technologies Co., Ltd. | Feeding Device, Antenna, And Electronic Device |
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| CN116995432B (en) | 2024-01-26 |
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