CN111883883A - PCB moves looks ware and basic station antenna - Google Patents
PCB moves looks ware and basic station antenna Download PDFInfo
- Publication number
- CN111883883A CN111883883A CN202010809344.2A CN202010809344A CN111883883A CN 111883883 A CN111883883 A CN 111883883A CN 202010809344 A CN202010809344 A CN 202010809344A CN 111883883 A CN111883883 A CN 111883883A
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- China
- Prior art keywords
- pcb
- sliding
- phase shifter
- cavity
- flat plate
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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)
Abstract
The embodiment of the invention relates to the technical field of antennas, and discloses a PCB phase shifter and a base station antenna, wherein the PCB phase shifter comprises: the PCB comprises a first PCB, a second PCB, a sliding support frame and a cavity with one open side; the cavity cover is arranged on the first PCB to construct a sliding area; the sliding support frame comprises a flat plate, a transmission shaft is constructed on the top surface of the flat plate, and a first sliding groove is formed in the cavity; the flat board is located in the sliding area and the second PCB board is detachably mounted on the bottom surface of the flat board, and the transmission shaft is located in the first sliding groove. The PCB phase shifter provided by the embodiment of the invention can be directly connected with the transmission plate through the transmission shaft, an additional transmission adapter is not needed, the installation is convenient and fast, and the cost is lower; the clearance of first PCB board and second PCB board is stable, has guaranteed index reliability.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a PCB phase shifter and a base station antenna.
Background
A base station, i.e. a public mobile communication base station, is an interface device for a mobile device to access the internet, and is a form of a radio station, which is a radio transceiver station for information transmission with a mobile phone terminal through a mobile communication switching center in a certain radio coverage area. The base station and the terminal transmit and receive signals through the medium of the antenna.
The base station antenna is used as the final control terminal of the mobile communication network to finally adjust the network provided for the user. The electric downtilt function of the electrically tunable antenna can meet the requirements that the same type antenna is in different use areas and different communication load areas, and the downtilt angle can be adjusted through remote control, so that larger network capacity is provided, communication interference is reduced, and labor cost is reduced. With the development of 5G communication technology, the 5G antenna with a fixed tilt angle cannot meet the requirements of future development, so that the electrical tuning technology is also applied to the 5G antenna.
The phase shifter is used as a key component of the electric tuning technology, and the size and the performance of the phase shifter directly influence the size and the performance index of the 5G antenna. At present, what extensively adopted among the conventional electrically tunable antenna has the medium to move looks ware and PCB and moves looks ware, and the medium moves looks ware and mostly is metal cavity structure, and this structure is installed on the antenna reflecting plate with plastics buckle or metallic structure spare, moves looks ware cost higher, and the installation has a high demand to structural member intensity, and occupation space position is big, and antenna layout is inflexible. The PCB phase shifter has the problem that the gap between the sliding PCB of the phase shifter and the main PCB is unstable or too large in the sliding process, so that the power amplitude of the port is greatly changed, and various performance indexes of the electric tilt antenna beam in the downward inclination are influenced.
Disclosure of Invention
The embodiment of the invention provides a PCB phase shifter and a base station antenna, which are used for solving or partially solving the problem of poor working performance of the conventional PCB phase shifter.
In a first aspect, an embodiment of the present invention provides a PCB phase shifter, including: the PCB comprises a first PCB, a second PCB, a sliding support frame and a cavity with one open side;
the cavity cover is arranged on the first PCB to construct a sliding area; the sliding support frame comprises a flat plate, a transmission shaft is constructed on the top surface of the flat plate, and a first sliding groove is formed in the cavity; the flat board is located in the sliding area and the second PCB board is detachably mounted on the bottom surface of the flat board, and the transmission shaft is located in the first sliding groove.
On the basis of the technical scheme, a sliding shaft is constructed on the bottom surface of the flat plate, and a second sliding groove is formed in the first PCB; the sliding shaft penetrates through the second PCB and then is positioned in the second sliding groove.
On the basis of the technical scheme, the sliding shaft is sleeved with an elastic piece used for enabling the first PCB to be attached to the second PCB.
On the basis of the technical scheme, the cavity is provided with a positioning column, and the first PCB is provided with a positioning hole matched with the positioning column.
On the basis of the technical scheme, the cavity is detachably connected with the first PCB.
On the basis of the technical scheme, the cavity is provided with the elastic clamping hook, and the first PCB is provided with the mounting groove matched with the elastic clamping hook.
On the basis of the technical scheme, a first boss is constructed on the top surface of the flat plate or the inner surface of the cavity.
On the basis of the technical scheme, a buckle used for connecting the transmission plate is installed at the end part of the transmission shaft.
On the basis of the technical scheme, a second boss is constructed on the outer surface of the cavity.
In a second aspect, an embodiment of the present invention provides a base station antenna, including the PCB phase shifter provided in the foregoing technical solutions.
According to the PCB phase shifter and the base station antenna provided by the embodiment of the invention, the transmission shaft is directly connected with the transmission plate in a buckling manner, and the flat plate is driven to move in the sliding region through the power transmitted by the transmission shaft, so that the second PCB is driven to move from one end of the first PCB to the other end of the first PCB, and the phase shifting function is realized. The PCB phase shifter provided by the embodiment of the invention can be directly connected with the transmission plate through the transmission shaft, an additional transmission adapter is not needed, the installation is convenient and fast, and the cost is lower; the clearance of first PCB board and second PCB board is stable, has guaranteed index reliability.
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 a schematic structural diagram of a PCB phase shifter according to an embodiment of the present invention;
FIG. 2 is an exploded view of a PCB phase shifter according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a chamber according to an embodiment of the invention;
FIG. 4 is a schematic structural view of a sliding support according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a second PCB board according to an embodiment of the invention;
fig. 6 is a schematic structural diagram of a first PCB according to an embodiment of the present invention.
Reference numerals:
1. a cavity; 101. a housing; 102. a first chute; 103. a second boss; 104. a positioning column; 105. an elastic hook; 106. grooving; 2. a sliding support frame; 201. a flat plate; 202. buckling; 203. a first boss; 204. a sliding shaft; 3. a spring; 4. a second PCB board; 401. a substrate; 402. a second microstrip line group; 403. a through hole; 5. a first PCB board; 501. a first microstrip line group; 502. positioning holes; 503. mounting grooves; 504. a second runner.
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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, a PCB phase shifter according to an embodiment of the present invention includes: the PCB comprises a first PCB (printed circuit board) 5, a second PCB 4, a sliding support frame 2 and a cavity 1 with one open side; the first PCB 5 is in a static state, and the second PCB 4 is in a moving state; the cavity 1 is covered on the first PCB 5 to construct a sliding area, and a space between the top surface of the first PCB 5 and the inner surface of the cavity 1 is the sliding area; the size of the second PCB 4 is smaller than the size of the first PCB 5; the second PCB 4 is arranged in close contact with the first PCB 5.
As shown in fig. 3 and 4, the sliding support frame 2 includes a plate 201, a transmission shaft (not shown) is configured on the top surface of the plate 201, and a first sliding groove 102 is formed on the cavity 1; the plate 201 is located in the sliding area and the second PCB 4 is detachably mounted on the bottom surface of the plate 201, and the transmission shaft is located in the first sliding groove 102.
It should be noted that, the cavity 1 includes a rectangular casing 101, the casing 101 is made of a non-metal material, the casing 101 has a certain elastic deformation capability, the bottom of the casing 101 is open, a first sliding groove 102 penetrating through the outer surface and the inner surface is formed on the casing 101, and the first sliding groove 102 extends along the length direction of the casing 101.
It can be understood that, in order to ensure the stability of the sliding of the flat plate 201, two transmission shafts are configured on the top surface of the flat plate, and two first sliding grooves 102 are formed on the corresponding housing 101 at intervals.
In the embodiment of the present invention, the transmission shaft is directly connected to the transmission plate in a snap-fit manner, and the flat plate 201 is driven to move in the sliding region by the power transmitted by the transmission shaft, so as to drive the second PCB 4 to move from one end of the first PCB 5 to the other end of the first PCB 5, thereby achieving the phase shifting function. The PCB phase shifter provided by the embodiment of the invention can be directly connected with the transmission plate through the transmission shaft, an additional transmission adapter is not needed, the installation is convenient and fast, and the cost is lower; the clearance between the first PCB 5 and the second PCB 4 is stable, and index reliability is guaranteed.
As shown in fig. 5 and fig. 6, a plurality of first microstrip lines arranged in parallel are disposed on the first PCB 5, and the first microstrip lines form a first microstrip line group 501; the second PCB 4 is provided with a plurality of symmetrically arranged second microstrip lines, which may be U-shaped microstrip lines, and the plurality of second microstrip lines form a second microstrip line group 402. The first microstrip line group 501 and the second microstrip line group 402 may ensure a distance between the two by disposing a coating on the substrate 401.
On the basis of the above embodiments, as shown in fig. 4, 5 and 6, the bottom surface of the flat plate 201 is configured with the sliding shaft 204, and the first PCB 5 is provided with the second sliding slot 504; the sliding shaft 204 penetrates the second PCB 4 and is located in the second sliding groove 504.
It should be noted that, for the stability of transmission, four sliding shafts 204 are configured on the bottom surface of the flat plate 201, and the four sliding shafts 204 are correspondingly arranged at four top corners of the flat plate 201; two second sliding grooves 504 which are arranged in parallel are formed in the corresponding first PCB 5, and the two sliding shafts 204 are positioned in the same second sliding groove 504; the second PCB 4 is formed with four through holes 403. The two through holes 403 are located in an area enclosed by the same U-shaped microstrip line, and the sliding shaft 204 sequentially passes through the through holes 403 and the second sliding groove 504 during assembly.
It can be understood that, on the substrate corresponding to the first PCB 5, four first microstrip lines are sequentially disposed along the width direction of the substrate, one second sliding slot 504 is disposed between the first microstrip line and the second first microstrip line, and another second sliding slot 504 is disposed between the third microstrip line and the fourth first microstrip line. The first microstrip line and the second microstrip line correspond to one U-shaped microstrip line, and the third microstrip line and the fourth microstrip line correspond to the other U-shaped microstrip line.
On the basis of the above embodiment, the sliding shaft 204 is sleeved with an elastic member for attaching the first PCB 5 and the second PCB 4.
It should be noted that the elastic member may be a spring 3, the spring 3 is in a compressed state, and the first PCB 5 and the second PCB 4 can move smoothly relative to each other through elastic deformation of the spring 3, and stability of electrical performance can be ensured. Wherein, one end of the spring 3 is contacted with the bottom surface of the flat plate 201, the other end of the spring 3 is contacted with the top surface of the second PCB 4, and the bottom surface of the second PCB 4 is contacted with the top surface of the first PCB 5.
In the embodiment of the invention, the elasticity of the spring is utilized to keep the gap between the first PCB 5 and the second PCB 4 stable, thereby ensuring the index reliability, and the first PCB 5 and the second PCB 4 form electric coupling.
On the basis of the above embodiments, as shown in fig. 3 and fig. 6, the cavity 1 is configured with the positioning post 104, and the first PCB 5 is provided with a positioning hole 502 adapted to the positioning post 104.
It should be noted that, for convenience of installation and positioning, two opposite side surfaces of the housing 101 are respectively configured with a positioning column 104, and two positioning holes 502 symmetrically arranged are correspondingly formed on the first PCB 5, and the positioning columns 104 are located in the positioning holes 502 during assembly.
On the basis of the above embodiment, the cavity 1 is detachably connected with the first PCB 5.
It should be noted that the cavity 1 and the first PCB 5 may be connected by a snap connection. For example, two opposite side surfaces of the housing 101 are configured with the elastic hooks 105, and the first PCB 5 is configured with mounting grooves 503 adapted to the elastic hooks 105.
It can be understood that two elastic hooks 105 can be configured on the same side of the housing 101, the positioning column 104 is located between the two elastic hooks 105, and the connecting portion between the housing 101 and the elastic hooks 105 is provided with a slot 106, so that the elastic hooks 105 have a certain elasticity.
On the basis of the above embodiment, as shown in fig. 4, the top surface of the plate 201 or the inner surface of the chamber 1 is configured with the first boss 203.
It should be noted that, the top surface of the flat plate 201 is provided with the first boss 203 in a strip structure, which can prevent the flat plate 201 from rubbing too much with the inner surface of the housing 101 during the sliding process, so as to prevent the sliding from being blocked. Wherein, the top surface of the flat plate 201 is provided with two first bosses 203 which are symmetrically arranged.
On the basis of the above embodiment, as shown in fig. 4, a buckle 202 for connecting the driving plate is installed at the end of the driving shaft.
It should be noted that the transmission shaft and the buckle 202 are of an integrated structure, so as to realize direct connection with the transmission plate. Wherein two transmission shafts are constructed on the top surface of the plate 201.
On the basis of the above described embodiment, the cavity 1 is configured with a second boss 103 on its outer surface.
It should be noted that, the second boss 103 in a strip or bump structure is disposed on the top surface of the housing 101, so that it is possible to prevent the housing 101 from being too rubbed with the bottom surface of the transmission plate in the sliding process, which may cause the sliding to be blocked, and reduce the transmission resistance, thereby making the transmission smoother.
The PCB phase shifter provided by the embodiment of the invention adopts the non-metal cavity, realizes the installation by the elastic clamping hook integrated with the cavity, reduces the structural installation parts, has light weight, is easy to realize the assembly of the PCB phase shifter and the 5G antenna, is simple to install, does not need cables and welding with a feed network of a whole machine, and is easy to replace; the elasticity of the spring is utilized to ensure the stable clearance between the first PCB and the second PCB, thereby ensuring the index reliability; the mode that the sliding support frame is directly connected with the transmission plate is adopted, a transmission adapter is not needed, the installation is convenient and fast, and the cost is lower; the phase shifter can be installed as an independent module, and can also be partially integrated on a whole machine feed net PCB, so that the consistency is good, and convenience and flexibility are realized.
In another aspect, the present invention further provides a base station antenna including the PCB phase shifter according to the above embodiments.
In the embodiment of the invention, the PCB phase shifter has simple structure, light weight and small volume, does not need welding and is easy to be arranged on the reflecting plate of the 5G complete machine antenna. Therefore, the base station antenna has small volume, stable phase-shifting performance and convenient maintenance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A PCB phase shifter, comprising: the PCB comprises a first PCB, a second PCB, a sliding support frame and a cavity with one open side;
the cavity cover is arranged on the first PCB to construct a sliding area;
the sliding support frame comprises a flat plate, a transmission shaft is constructed on the top surface of the flat plate, and a first sliding groove is formed in the cavity;
the flat board is located in the sliding area and the second PCB board is detachably mounted on the bottom surface of the flat board, and the transmission shaft is located in the first sliding groove.
2. The PCB phase shifter of claim 1, wherein a sliding shaft is formed on a bottom surface of the flat plate, and a second sliding slot is formed on the first PCB; the sliding shaft penetrates through the second PCB and then is positioned in the second sliding groove.
3. The PCB phase shifter of claim 2, wherein the sliding shaft is sleeved with an elastic member for attaching the first PCB to the second PCB.
4. The PCB phase shifter as claimed in any one of claims 1 to 3, wherein the cavity is configured with a positioning post, and the first PCB is provided with a positioning hole adapted to the positioning post.
5. A PCB phase shifter according to any one of claims 1 to 3, wherein the cavity is detachably connected to the first PCB.
6. The PCB phase shifter as claimed in claim 5, wherein the cavity is configured with a resilient hook, and the first PCB is formed with a mounting groove adapted to the resilient hook.
7. A PCB phase shifter according to any one of claims 1 to 3, wherein the top surface of the plate or the inner surface of the cavity is configured with a first boss.
8. A PCB phase shifter according to any one of claims 1 to 3, wherein a clip for connecting the driving plate is installed at an end of the driving shaft.
9. A PCB phase shifter according to any one of claims 1 to 3, wherein the cavity is configured with a second boss on an outer surface thereof.
10. A base station antenna comprising a PCB phase shifter according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010809344.2A CN111883883A (en) | 2020-08-12 | 2020-08-12 | PCB moves looks ware and basic station antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010809344.2A CN111883883A (en) | 2020-08-12 | 2020-08-12 | PCB moves looks ware and basic station antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111883883A true CN111883883A (en) | 2020-11-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010809344.2A Pending CN111883883A (en) | 2020-08-12 | 2020-08-12 | PCB moves looks ware and basic station antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111883883A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112259941A (en) * | 2020-11-18 | 2021-01-22 | 深圳国人科技股份有限公司 | Phase shifter |
| CN112436249A (en) * | 2020-11-13 | 2021-03-02 | 扬州市宜楠科技有限公司 | Phase shifter |
| CN116491022A (en) * | 2020-11-11 | 2023-07-25 | 上海诺基亚贝尔股份有限公司 | Phase shifter and antenna device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201838690U (en) * | 2010-08-03 | 2011-05-18 | 东莞台霖电子通讯有限公司 | Phase shifter provided with reverse relative configuration type electric adjusting unit |
| CN102231451A (en) * | 2011-04-21 | 2011-11-02 | 江苏捷士通科技股份有限公司 | Integrated phase shifter including power distribution network |
| CN111490316A (en) * | 2020-05-11 | 2020-08-04 | 江苏雳通通讯科技有限公司 | Phase shifter assembly and electrically-controlled base station antenna with same |
-
2020
- 2020-08-12 CN CN202010809344.2A patent/CN111883883A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201838690U (en) * | 2010-08-03 | 2011-05-18 | 东莞台霖电子通讯有限公司 | Phase shifter provided with reverse relative configuration type electric adjusting unit |
| CN102231451A (en) * | 2011-04-21 | 2011-11-02 | 江苏捷士通科技股份有限公司 | Integrated phase shifter including power distribution network |
| CN111490316A (en) * | 2020-05-11 | 2020-08-04 | 江苏雳通通讯科技有限公司 | Phase shifter assembly and electrically-controlled base station antenna with same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116491022A (en) * | 2020-11-11 | 2023-07-25 | 上海诺基亚贝尔股份有限公司 | Phase shifter and antenna device |
| CN116491022B (en) * | 2020-11-11 | 2024-04-23 | 上海诺基亚贝尔股份有限公司 | Phase shifter and antenna device |
| CN112436249A (en) * | 2020-11-13 | 2021-03-02 | 扬州市宜楠科技有限公司 | Phase shifter |
| CN112259941A (en) * | 2020-11-18 | 2021-01-22 | 深圳国人科技股份有限公司 | Phase shifter |
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Application publication date: 20201103 |