CN113013587B - Base station antenna filter integrated module, array and preparation method thereof - Google Patents
Base station antenna filter integrated module, array and preparation method thereof Download PDFInfo
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- CN113013587B CN113013587B CN202110413892.8A CN202110413892A CN113013587B CN 113013587 B CN113013587 B CN 113013587B CN 202110413892 A CN202110413892 A CN 202110413892A CN 113013587 B CN113013587 B CN 113013587B
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- 238000002360 preparation method Methods 0.000 title abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 75
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- 238000001465 metallisation Methods 0.000 claims description 7
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- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000009713 electroplating Methods 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
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Classifications
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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
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The embodiment of the application discloses an integrated module of a base station antenna filter, an array and a preparation method thereof, wherein an antenna assembly and a filter assembly are integrated together by arranging a module support, the module support and the filter are integrally formed, a first PIN needle for externally connecting a radio frequency front-end circuit and a second PIN needle for connecting a metal circuit in the antenna assembly are embedded in the filter, and after the preparation is finished, the integrated module of the antenna filter is obtained, the assembly is not needed, and only the tuning test is needed for the filter, so that the preparation process is simplified, the time is saved, and the performance of the filter is improved.
Description
Technical Field
The application relates to the technical field of communication, in particular to an integrated module of a base station antenna filter, an array thereof and a preparation method thereof.
Background
The radio communication system generally comprises an antenna, a radio frequency front end, a radio frequency transceiver module and a baseband signal processor, wherein the radio frequency front end is a basic component for converting a digital signal into a radio frequency signal, and is also a core component of the radio communication system. The filter is the most important discrete device in the radio frequency front end, and enables specific frequency components in the signal to pass through and greatly attenuate other frequency components, so that the anti-interference performance and the signal-to-noise ratio of the signal are improved.
A common filter is a cavity filter, i.e. a microwave filter employing a resonant cavity structure. The cavity filter mainly comprises a cavity, a cover plate covered on the cavity, a tuning screw and other components. One cavity can be equivalent to an inductance and a parallel capacitance, so that a resonant stage is formed, and the microwave filtering function is realized. The cavity is provided with a resonant column, and the cover plate is provided with a screw hole for installing a tuning screw. The cover plate is arranged on the cavity, and the tuning screw is screwed into the cover plate, namely the debugging process of the resonance frequency.
At present, the filter and the antenna are separately designed and prepared, and finally the filter Unit AFU (ANTENNA FILTER Unit) of the antenna is obtained after the filter and the antenna are assembled together. Because of the production variability of the filter, the filter needs to be debugged for many times, and additional manufacturing errors are introduced when the antenna and the filter are assembled together in the follow-up process, so that the consistency of the filter and the antenna array is difficult to control effectively.
Disclosure of Invention
In order to solve the technical problems that the filter needs to be debugged for multiple times due to the production difference of the filter, and extra manufacturing errors are introduced when the antenna and the filter are assembled together later, and the consistency of the filter and the antenna array is difficult to control effectively, the application discloses a base station antenna filter integrated module, an array thereof and a preparation method thereof through the following embodiments.
The first aspect of the present application discloses an integrated module of a base station antenna filter, comprising: the module support is in a strip-shaped groove shape and comprises a bottom plate and side walls extending along two sides of the bottom plate in the direction perpendicular to the plate surface;
An antenna component is arranged on the upper surface of the bottom plate, a filter component is arranged on the lower surface of the bottom plate, and the upper surface of the bottom plate is the surface of a groove formed by the bottom plate and the side wall;
The antenna assembly comprises an antenna metal sheet and a metal circuit, wherein the metal circuit is attached to the upper surface of the bottom plate, the antenna metal sheet is arranged above the metal circuit through a hot-melt column, and electromagnetic coupling exists between the metal circuit and the antenna metal sheet;
the filter assembly comprises a filter and a filter cover plate; the filter includes a plurality of cylindrical cavities;
the outer frame of the filter is strip-shaped, and the plurality of cylindrical cavities are sequentially distributed in the outer frame in two rows;
The outer surfaces of the two cylindrical cavities at the outermost side of one end of the outer frame are respectively provided with a first boss, two support bosses are also arranged in the outer frame at the same end, the two first bosses are respectively connected to the two support bosses through connecting rods, each support boss is provided with a first PIN needle, and the first PIN needles are used for externally connecting a radio frequency front-end circuit;
Second bosses are arranged on the outer surfaces of the two cylindrical cavities at the outermost side of the other end of the outer frame, a second PIN needle is arranged in each second boss, and the second PIN needle penetrates through the bottom plate to be connected to the metal circuit;
The module support, the outer frame of the filter, the plurality of cylindrical cavities, the two first bosses, the two support bosses and the two second bosses are all integrally formed by plastic materials, and surface metallization is realized by adopting a selective electroplating mode;
The filter cover plate is provided with a plurality of threaded holes, the cylindrical cavities are in one-to-one correspondence with the positions of the threaded holes, and a plurality of tuning screws are installed in the cylindrical cavities through the filter cover plate through the threaded holes.
Optionally, the antenna metal sheet is square;
Four corners of the antenna metal sheet are respectively arranged above the metal circuit through four hot-melt columns, circuit bosses are arranged on the side faces of the two hot-melt columns, and one part of the metal circuit is in electromagnetic coupling with the antenna metal sheet through being erected on the circuit bosses.
Optionally, the antenna metal sheet is provided with three, and is installed above the metal circuit side by side with equal spacing.
Optionally, the metal circuit is electroplated on the upper surface of the bottom plate, or the metal circuit is laser etched on the upper surface of the bottom plate.
Optionally, two PIN holes are formed in the filter cover plate, and the first PIN extends out of the filter through the PIN holes;
The filter cover plate is characterized in that first locking screw holes are formed in two ends of the filter cover plate, and second locking screw holes are formed in two ends of an outer frame of the filter.
The second aspect of the application discloses a base station antenna filter integrated module array, which is formed by arranging a plurality of base station antenna filter integrated modules according to the first aspect of the application.
Optionally, the two adjacent base station antenna filter integrated modules are fixedly connected together through the side wall of the module support.
The third aspect of the present application discloses a method for preparing an integrated module of a base station antenna filter, which is used for preparing the integrated module of the base station antenna filter disclosed in the first aspect of the present application, and the method comprises:
The method comprises the steps of integrally injection molding a module support, an outer frame of a filter, a plurality of cylindrical cavities, two first bosses, two support bosses and two second bosses by adopting a plastic mold, wherein a first PIN needle is pre-embedded in a position corresponding to the support bosses in the plastic mold, and a second PIN needle is pre-embedded in a position corresponding to the second bosses;
Selectively plating the lower surfaces of the filter and the bottom plate to realize surface metallization, and plating a metal circuit on the upper surface of the bottom plate;
welding two ends of the connecting rod on the first boss and the bracket boss respectively;
Thermally fusing an antenna metal sheet over the metal lines;
and a plurality of tuning screws are respectively installed in the cylindrical cavities through a plurality of threaded holes and penetrate through the filter cover plate, and automatic tuning is performed.
The embodiment of the application discloses an integrated module of a base station antenna filter, an array and a preparation method thereof, wherein an antenna assembly and a filter assembly are integrated together by arranging a module support, the module support and the filter are integrally formed, a first PIN needle for externally connecting a radio frequency front-end circuit and a second PIN needle for connecting a metal circuit in the antenna assembly are embedded in the filter, and after the preparation is finished, the integrated module of the antenna filter is obtained, the assembly is not needed, and only the tuning test is needed for the filter, so that the preparation process is simplified, the time is saved, and the performance of the filter is improved.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of an integrated module of a base station antenna filter according to an embodiment of the present application;
Fig. 2 is a schematic structural diagram of a filter component in a base station antenna filter integrated module according to an embodiment of the present application;
Fig. 3 is a schematic structural diagram of a filter in a base station antenna filter integrated module according to an embodiment of the present application;
fig. 4 is an exploded structure diagram of an integrated module of a base station antenna filter according to an embodiment of the present application;
fig. 5 is another view angle explosion structure diagram of a base station antenna filter integrated module according to an embodiment of the present application;
Fig. 6 is a schematic structural diagram of an integrated module array of a base station antenna filter according to an embodiment of the present application;
fig. 7 is a schematic workflow diagram of a method for manufacturing an integrated module of a base station antenna filter according to an embodiment of the present application.
In fig. 1-7:
The antenna comprises a 1-module support, a 11-bottom plate, a 12-side wall, a 2-antenna assembly, a 21-antenna metal sheet, a 22-metal line, a 23-hot melting column, a 231-line boss, a 3-filter assembly, a 31-filter, a 310-outer frame, a 311-cylindrical cavity, a 312-first boss, a 313-support boss, a 314-connecting rod, a 315-first PIN needle, a 316-second boss, a 317-second PIN needle, a 318-tuning screw, a 319-second locking screw hole, a 32-filter cover plate, a 321-screw hole, a 322-PIN needle hole and a 323-first locking screw hole.
Detailed Description
In order to solve the technical problems that the filter needs to be debugged for multiple times due to the production difference of the filter, and extra manufacturing errors are introduced when the antenna and the filter are assembled together later, and the consistency of the filter and the antenna array is difficult to control effectively, the application discloses a base station antenna filter integrated module, an array thereof and a preparation method thereof through the following embodiments.
The first embodiment of the application discloses a base station antenna filter integrated module, which comprises: the module support 1, the module support 1 is the bar slot form, the module support 1 includes bottom plate 11 and follows the lateral wall 12 that the bottom plate 11 both sides perpendicular to face direction extended.
The antenna component 2 is mounted on the upper surface of the base plate 11, the filter component 3 is mounted on the lower surface of the base plate 11, and the upper surface of the base plate 11 is the surface where the groove formed by the base plate 11 and the side wall 12 is located. It should be noted that the upper surface and the lower surface of the base plate 11 are only one azimuth limitation for describing the clear structure, and in practical application, the upper surface and the lower surface may be switched according to the specific installation environment.
The antenna assembly 2 comprises an antenna metal sheet 21 and a metal wire 22, wherein the metal wire 22 is attached to the upper surface of the base plate 11, the antenna metal sheet 21 is installed above the metal wire 22 through a hot melt column 23, and electromagnetic coupling exists between the metal wire 22 and the antenna metal sheet 21.
In the embodiment, the antenna adopts a metal sheet, and in practical application, the mainstream base station antenna scheme can be applied, for example, a common dipole antenna can also be adopted.
At present, the firm attaching mode specifically comprises the following three implementation schemes: 1) An LDS laser etching process is adopted; 2) Adopting a selective electroplating process; 3) A hot melt process is employed.
In this embodiment, the metal line 22 is electroplated on the upper surface of the bottom plate 11, or the metal line 22 is laser etched on the upper surface of the bottom plate 11.
In the embodiment, a hot melting process is adopted, corresponding small hot melting columns are uniformly distributed on the places where the upper surface of the module support 1 needs to be attached, and the antenna metal sheet formed by integrally stamping the metal sheet in advance is subjected to hot melting attachment.
Referring to fig. 4-5, in some implementations, the antenna foil 21 is square. Four corners of the antenna metal sheet 21 are respectively arranged above the metal lines 22 through four hot-melt columns 23, wherein line bosses 231 are arranged on the side surfaces of the two hot-melt columns 23, and one part of the metal lines 22 is in electromagnetic coupling with the antenna metal sheet 21 by being erected on the line bosses 231. The antenna metal sheet 21 is provided with three, equally spaced side by side mounted above the metal tracks 22.
The filter assembly 3 comprises a filter 31 and a filter cover plate 32.
The filter 31 includes a plurality of cylindrical cavities 311, and the filter 31 and the module support 1 are integrally formed.
The outer frame 310 of the filter 31 is strip-shaped, and the plurality of cylindrical cavities 311 are sequentially arranged in two rows in the outer frame 310.
Referring to fig. 3, the outer surfaces of the two cylindrical cavities 311 located at the outermost side of one end of the outer frame 310 are respectively provided with a first boss 312, and two support bosses 313 are further disposed in the outer frame 310 at the same end, and the two first bosses 312 are respectively connected to the two support bosses 313 through a connecting rod 314. Specifically, a circle of grooves are formed in the support boss 313, a protrusion is formed in the first boss 312, one end of the connecting rod 314 is clamped in the grooves to be fixed on the support boss 313, and the other end of the connecting rod is sleeved on the protrusion to be fixed on the first boss 312. The connecting rod 314 may be made of plastic plating or metal, and is mainly used for signal transmission transition, and may be made of copper rod as an example.
Each support boss 313 is provided with a first PIN 315, and the first PIN 315 is used for externally connecting with a radio frequency front-end circuit. In some implementations, the first PIN 315 uses a POGO PIN connector with a spring, with one end crimped to the radio frequency plate and the other end fixed in the bracket boss 313 by in-mold injection. Two PIN holes 322 are formed in the filter cover plate 32, and the first PIN 315 extends out of the filter 31 through the PIN holes 322, so as to be convenient for externally connecting with a radio frequency front-end circuit.
Second bosses 316 are disposed on the outer surfaces of the two cylindrical cavities 311 located at the outermost side of the other end of the outer frame 310, and a second PIN 317 is disposed in each second boss 316, and the second PIN 317 is connected to the metal line 22 through the bottom plate 11. The second PIN 317 is pre-molded inside the second boss 316 and penetrates the upper surface of the base plate 11, so that the component can be seen only from the upper surface of the base plate 11, and only one point can be seen from fig. 4 because the second PIN protrudes only about one millimeter (enough to perform metal wire welding) from the upper surface of the base plate 11 in order not to affect the electrical performance.
Due to the requirement of the second PIN and the second boss 316, the corresponding port of the outer frame 310 can be adaptively expanded to two sides, as shown in fig. 3, the outer frame 310 is T-shaped, and the entire outer frame 310 takes the lower surface of the bottom plate 11 as the bottom.
The module support 1 (including the bottom plate 11 and the side wall 12), the outer frame 310 of the filter 31, the plurality of cylindrical cavities 311, the two first bosses 312, the two support bosses 313 and the two second bosses 316 are all made of plastic materials and are integrally formed through injection molding in a mold. The first PIN needle and the second PIN needle are formed through in-mold injection molding and pre-embedding. After injection molding is completed, the lower surfaces of the filter 31 and the bottom plate 11 are selectively electroplated to realize surface metallization, on one hand, metal ground is provided for the antenna assembly and is equivalent to a metal reflecting plate of the antenna to form forward radiation, and on the other hand, a resonant cavity of the filter assembly is formed, and the outer surfaces of the resonant cavities are all metal, so that a filtering effect is achieved. The area where the filter 31 is plated includes all areas of the inner and outer surfaces of the entire outer frame 310, the two first bosses 312, the two bracket bosses 313, the two second bosses 316, and the plurality of cylindrical cavities 311.
Based on the above disclosed module structure, the signal transmission process is: the antenna signal is obtained by the second PIN needle and transmitted to the filter, filtering is realized through a plurality of cylindrical cavities in sequence, then the antenna signal is transmitted to the first PIN needle through the connecting rod, and the first PIN needle transmits the signal to the radio frequency front-end circuit board.
The filter cover plate 32 is made of a metal aluminum plate, a plurality of threaded holes 321 are formed in the filter cover plate 32, the plurality of cylindrical cavities 311 are in one-to-one correspondence with the positions of the plurality of threaded holes 321, and a plurality of tuning screws 318 are installed in the plurality of cylindrical cavities 311 through the plurality of threaded holes 321 penetrating through the filter cover plate 32 respectively. The process of installing the plurality of tuning screws 318 in the plurality of cylindrical cavities 311 achieves both automatic tuning and the purpose of installing and securing the filter cover 32 to the filter 31.
The two ends of the filter cover plate 32 are respectively provided with a first locking screw hole 323, and the two ends of the outer frame 310 of the filter 31 are respectively provided with a second locking screw hole 319. The first locking screw hole 323 and the second locking screw hole 319 are corresponding in position, and can be used for fixing the filter cover plate 32, and can also be used for jointly fixing the filter 31 and the filter cover plate 32 on a special bearing platform.
The base station antenna filter integrated module disclosed in the above embodiment integrates an antenna assembly and a filter assembly together by arranging the module support, the module support and the filter are integrally formed, a first PIN needle for externally connecting a radio frequency front end circuit and a second PIN needle for connecting a metal circuit in the antenna assembly are embedded in the filter, after preparation is completed, the antenna filter integrated module is obtained, assembly is not needed, and tuning test is only needed for the filter in the follow-up process.
The existing antenna and filter are two independent components, after preparation is completed, the antenna is required to be debugged, then the filter is debugged, finally the antenna and the filter are assembled together, and then joint debugging is carried out. According to the application, the antenna and the filter are designed into an integrated structure, so that the assembly link of the antenna and the filter is avoided, and after the preparation is finished, the filter is only required to be debugged at the test port, so that the preparation process is simplified, the time is saved, and the performance of the filter is improved.
The second embodiment of the application discloses a base station antenna filter integrated module array, which is formed by arranging a plurality of base station antenna filter integrated modules according to the first embodiment of the application.
Referring to fig. 6, any two adjacent base station antenna filter integrated modules are fixedly connected together through the side wall 12 of the module bracket 1. When the method is specifically applied, any number of module arrays can be constructed according to design requirements.
The third embodiment of the present application discloses a method for preparing an integrated module of a base station antenna filter, for preparing an integrated module of a base station antenna filter as disclosed in the first embodiment of the present application, referring to a flowchart shown in fig. 7, the method comprises:
In step 100, the mold support 1, the outer frame 310 of the filter 31, the plurality of cylindrical cavities 311, the two first bosses 312, the two support bosses 313 and the two second bosses 316 are integrally injection molded by using a plastic mold.
The module support 1 (including the bottom plate 11 and the side walls 12), the outer frame 310 of the filter 31, the plurality of cylindrical cavities 311, the two first bosses 312, the two support bosses 313, and the two second bosses 316 are all made of plastic materials, and the plastic materials are typically high molecular polymers, such as PPS, for example.
Wherein, a first PIN 315 is pre-embedded in the plastic mold at a position corresponding to the support boss 313, and a second PIN 317 is pre-embedded in the plastic mold at a position corresponding to the second boss 316.
The first PIN 315 has a length that extends beyond the filter cover and the second PIN 317 has a length that extends beyond the top surface of the base plate 11. In particular, the length of the second PIN 317 extending beyond the upper surface of the chassis 11 is preferably about one millimeter.
Step 200, selectively plating the lower surfaces of the filter 31 and the chassis 11 to realize surface metallization, and plating the metal line 22 on the upper surface of the chassis 11.
After injection molding is completed, the lower surfaces of the filter 31 and the bottom plate 11 are selectively electroplated to realize surface metallization, on one hand, metal ground is provided for the antenna assembly and is equivalent to a metal reflecting plate of the antenna to form forward radiation, and on the other hand, a resonant cavity of the filter assembly is formed, and the outer surfaces of the resonant cavities are all metal, so that a filtering effect is achieved. The area where the filter 31 is plated includes all areas of the inner and outer surfaces of the entire outer frame 310, the two first bosses 312, the two bracket bosses 313, the two second bosses 316, and the plurality of cylindrical cavities 311.
And 300, welding two ends of a connecting rod 314 on the first boss 312 and the bracket boss 313 respectively. Specifically, before welding, one end of the connecting rod 314 is clamped in the groove of the support boss 313, the other end is sleeved on the protrusion of the first boss 312, and then spot welding is performed on the two ends respectively.
Step 400, the antenna foil 21 is heat-fused over said metal tracks 22. In actual operation, corresponding small hot-melting columns are uniformly distributed on the place where the upper surface of the bottom plate needs to be attached in advance, and then the antenna metal sheet is attached in a hot-melting mode.
In step 500, a plurality of tuning screws 318 are respectively installed in the plurality of cylindrical cavities 311 through the filter cover plate 32 by a plurality of threaded holes 321, and are automatically tuned. Specifically, the filter cover 32 is first mounted on the filter 31, and then the tuning screw 318 is automatically mounted by setting a tuning program using an automatic tuning machine.
The preparation and performance debugging of the base station antenna filter integrated module disclosed by the application can be completed through the five steps. Compared with the AFU assembly of the antenna filter unit in the prior art, the method not only reduces the number of parts and omits a large number of assembly procedures, but also combines debugging steps. The AFU debugging comprises filter debugging, antenna debugging and antenna filter joint debugging, and the base station antenna filter integrated module disclosed by the application is simple and efficient because of the integrated design, and only one-step debugging is needed and only performed.
After the preparation and performance debugging of the base station antenna filter integrated module are completed by utilizing the flow, a large-scale array can be formed according to the needs. In the base station antenna filter integrated module disclosed by the application, the module support 1 and the filter 31 are all made of plastic raw materials, so that the mass can be reduced to the greatest extent and the production cost can be reduced when a large-scale array is formed.
The application has been described in detail in connection with the specific embodiments and exemplary examples thereof, but such description is not to be construed as limiting the application. It will be understood by those skilled in the art that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present application and its embodiments without departing from the spirit and scope of the present application, and these fall within the scope of the present application. The scope of the application is defined by the appended claims.
Claims (6)
1. A base station antenna filter integrated module, comprising: the module support is in a strip-shaped groove shape and comprises a bottom plate and side walls extending along two sides of the bottom plate in the direction perpendicular to the plate surface;
An antenna component is arranged on the upper surface of the bottom plate, a filter component is arranged on the lower surface of the bottom plate, and the upper surface of the bottom plate is the surface of a groove formed by the bottom plate and the side wall;
The antenna assembly comprises an antenna metal sheet and a metal circuit, wherein the metal circuit is attached to the upper surface of the bottom plate, the antenna metal sheet is arranged above the metal circuit through a hot-melt column, and electromagnetic coupling exists between the metal circuit and the antenna metal sheet;
the filter assembly comprises a filter and a filter cover plate; the filter includes a plurality of cylindrical cavities;
the outer frame of the filter is strip-shaped, and the plurality of cylindrical cavities are sequentially distributed in the outer frame in two rows;
The outer surfaces of the two cylindrical cavities at the outermost side of one end of the outer frame are respectively provided with a first boss, two support bosses are also arranged in the outer frame at the same end, the two first bosses are respectively connected to the two support bosses through connecting rods, each support boss is provided with a first PIN needle, and the first PIN needles are used for externally connecting a radio frequency front-end circuit;
Second bosses are arranged on the outer surfaces of the two cylindrical cavities at the outermost side of the other end of the outer frame, a second PIN needle is arranged in each second boss, and the second PIN needle penetrates through the bottom plate to be connected to the metal circuit;
The module support, the outer frame, the plurality of cylindrical cavities, the two first bosses, the two support bosses and the two second bosses are all integrally formed by plastic materials, and surface metallization is realized by adopting a selective electroplating mode;
The filter cover plate is provided with a plurality of threaded holes, the plurality of cylindrical cavities are in one-to-one correspondence with the positions of the plurality of threaded holes, and a plurality of tuning screws are respectively installed in the plurality of cylindrical cavities through the plurality of threaded holes penetrating through the filter cover plate;
The antenna metal sheet is square;
Four corners of the antenna metal sheet are respectively arranged above the metal circuit through four hot melt columns, wherein circuit bosses are arranged on the side surfaces of the two hot melt columns, and one part of the metal circuit is in electromagnetic coupling with the antenna metal sheet through being erected on the circuit bosses;
the metal circuit is electroplated on the upper surface of the bottom plate, or the metal circuit is laser carved on the upper surface of the bottom plate.
2. The base station antenna filter integrated module of claim 1, wherein the antenna foil is provided with three equally spaced side-by-side mounting over the metal traces.
3. The base station antenna filter integrated module according to claim 1, wherein two PIN holes are formed in the filter cover plate, and the first PIN extends out of the filter through the PIN holes;
The filter cover plate is characterized in that first locking screw holes are formed in two ends of the filter cover plate, and second locking screw holes are formed in two ends of an outer frame of the filter.
4. A base station antenna filter integrated module array, comprising a plurality of base station antenna filter integrated module arrangements as claimed in any one of claims 1to 3.
5. The array of base station antenna filter integrated modules of claim 4, wherein any two adjacent base station antenna filter integrated modules are fixedly connected together by a side wall of a module bracket.
6. A method for preparing the base station antenna filter integrated module according to any one of claims 1 to 3, the method comprising:
The method comprises the steps of integrally injection molding a module support, an outer frame of a filter, a plurality of cylindrical cavities, two first bosses, two support bosses and two second bosses by adopting a plastic mold, wherein a first PIN needle is pre-embedded in a position corresponding to the support bosses in the plastic mold, and a second PIN needle is pre-embedded in a position corresponding to the second bosses;
Selectively plating the lower surfaces of the filter and the bottom plate to realize surface metallization, and plating a metal circuit on the upper surface of the bottom plate;
welding two ends of the connecting rod on the first boss and the bracket boss respectively;
Thermally fusing an antenna metal sheet over the metal lines;
and a plurality of tuning screws are respectively installed in the cylindrical cavities through a plurality of threaded holes and penetrate through the filter cover plate, and automatic tuning is performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110413892.8A CN113013587B (en) | 2021-04-16 | 2021-04-16 | Base station antenna filter integrated module, array and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110413892.8A CN113013587B (en) | 2021-04-16 | 2021-04-16 | Base station antenna filter integrated module, array and preparation method thereof |
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| Publication Number | Publication Date |
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| CN113013587A CN113013587A (en) | 2021-06-22 |
| CN113013587B true CN113013587B (en) | 2024-05-24 |
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| EP4362229A1 (en) * | 2022-10-28 | 2024-05-01 | Wuhan Fingu Electronic Technology Co., Ltd. | Antenna |
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| CN206023750U (en) * | 2016-09-09 | 2017-03-15 | 桂林电子科技大学 | A kind of antenna assembly of integrated RF front-end circuit |
| WO2019047091A1 (en) * | 2017-09-07 | 2019-03-14 | 广东通宇通讯股份有限公司 | Base station antenna and antenna array module thereof |
| CN215008558U (en) * | 2021-04-16 | 2021-12-03 | 苏州硕贝德创新技术研究有限公司 | Base station antenna filter integrated module and array thereof |
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| WO2016106551A1 (en) * | 2014-12-30 | 2016-07-07 | 深圳市大富科技股份有限公司 | Cavity filter, and remote radio device, signal transceiving apparatus, and tower mounted amplifier having cavity filter |
| CN206023750U (en) * | 2016-09-09 | 2017-03-15 | 桂林电子科技大学 | A kind of antenna assembly of integrated RF front-end circuit |
| WO2019047091A1 (en) * | 2017-09-07 | 2019-03-14 | 广东通宇通讯股份有限公司 | Base station antenna and antenna array module thereof |
| CN215008558U (en) * | 2021-04-16 | 2021-12-03 | 苏州硕贝德创新技术研究有限公司 | Base station antenna filter integrated module and array thereof |
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| CN113013587A (en) | 2021-06-22 |
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