CN111987410A - Modular AFU structure - Google Patents
Modular AFU structure Download PDFInfo
- Publication number
- CN111987410A CN111987410A CN202010870691.6A CN202010870691A CN111987410A CN 111987410 A CN111987410 A CN 111987410A CN 202010870691 A CN202010870691 A CN 202010870691A CN 111987410 A CN111987410 A CN 111987410A
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- Prior art keywords
- antenna
- afu
- modular
- vibrator
- vibrators
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- 229920003023 plastic Polymers 0.000 claims abstract description 37
- 239000000969 carrier Substances 0.000 claims abstract description 8
- 238000009826 distribution Methods 0.000 claims description 11
- 230000005855 radiation Effects 0.000 claims description 11
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention provides a modularized AFU structure, which comprises a holding pole and an antenna unit detachably arranged on the holding pole, wherein the antenna unit comprises an antenna housing, an antenna filter module, a power dividing plate, a rack arranged on the holding pole and a power supply transceiving module, the power dividing plate is provided with the antenna filter module, and the antenna filter module consists of a plurality of integrated plastic carriers distributed in an array manner, the design of the filter matching circuit is simplified.
Description
Technical Field
The invention belongs to the technical field of communication, and particularly relates to a modular AFU structure.
Background
The scale antenna technology, as a core key technology of 5G, plays a crucial role in meeting the technical requirements of the eMBB, urrllc and mtc (mass machine type communication) services. For example, for an eMBB scenario, the main technical indicators of the eMBB scenario are spectrum efficiency, peak rate, energy efficiency, user experience rate, and the like, high-order MU-MIMO transmission can obtain extremely high spectrum efficiency, and meanwhile, as the antenna scale increases, the influence of interference and noise between users tends to disappear, the transmission power required for achieving the same coverage and throughput will also be reduced, and energy efficiency will be improved.
It is well known that the main function of an antenna is to provide wireless coverage, i.e. to enable wireless signal transmission between a wired communication network and a wireless terminal. A filter is a frequency-selective device that passes certain frequency components of a signal while significantly attenuating other frequency components. By using the frequency selection function of the filter, interference noise can be filtered or spectrum analysis can be performed, in other words, all devices or systems which can pass specific frequency components in the signal and greatly attenuate or suppress other frequency components are called as filters. A filter is a device that filters waves. In popular terms, the antenna is responsible for receiving and transmitting electromagnetic wave signals, and the filter is responsible for filtering or inhibiting useless electromagnetic wave frequency signals, wherein the 5G antenna adopts the MIMO technology, the number of the antenna filters required by the 5G antenna is greatly increased, correspondingly, upstream equipment manufacturers also put forward higher requirements on material cost, performance and assembly, and great challenges are created for production enterprises.
Disclosure of Invention
In view of the above, the present invention provides a modular AFU structure capable of realizing an integrated structure of an antenna filter.
In order to achieve the purpose, the invention adopts the technical scheme that: a modularized AFU structure comprises a pole and an antenna unit detachably mounted on the pole, wherein the antenna unit comprises an antenna housing, an antenna filter module, a power dividing plate, a rack mounted on the pole and a power receiving and transmitting module, the antenna housing covers the power dividing plate and is fixed on the rack and the power receiving and transmitting module to form a closed space for protecting the power dividing plate, the antenna filter module is mounted on the power dividing plate and comprises a plurality of integrated plastic carriers distributed in an array manner, a plurality of vibrators are mounted on one surface of each integrated plastic carrier, a coaxial cavity for mounting a resonator is integrally arranged on the other surface of each integrated plastic carrier, a feed pin for transmitting and receiving signals of an antenna into the coaxial cavity is arranged at one end of each coaxial cavity, and one end of each feed pin is connected to the vibrator after penetrating through the integrated plastic carriers, the other end of the coaxial cavity is provided with a low-pass connecting rod used for leading out a filter signal, a low-pass medium is installed on the low-pass connecting rod, and the low-pass connecting rod is connected to the power splitting plate through a spring pin.
Furthermore, the integrated plastic carrier is provided with a vibrator power distribution circuit on one surface provided with a plurality of vibrators, the plurality of vibrators are connected to the vibrator power distribution circuit together, and a feed pin interface used for connecting a feed pin is further arranged on the vibrator power distribution circuit.
Furthermore, the plurality of vibrators are arranged at intervals, a plurality of metalized pillars are arranged at the joint of each vibrator and the vibrator power distribution circuit, and positioning holes for installing the vibrators are correspondingly formed in the vibrators.
Furthermore, the oscillator comprises an oscillator radiation sheet, a photo-drawing sheet and a plastic supporting medium, the oscillator radiation sheet, the photo-drawing sheet and the plastic supporting medium are integrally formed by adopting an in-mold injection molding process, and the positioning hole is formed in the oscillator radiation sheet.
Furthermore, each integrated plastic carrier is sequentially connected with the power distribution plate, the rack and the power supply transceiver module through fastening screws.
Furthermore, a plurality of resonators are installed in the coaxial cavity, and each resonator comprises a resonance rod and a screw adjusting sleeve installed in a matched mode with the resonance rod.
Furthermore, a filter cover plate is detachably arranged outside the coaxial cavity, and the adjusting screw sleeve component is installed on the filter cover plate.
Further, the outside of POGO PIN is provided with POGO PIN medium, and the POGO PIN is connected to the merit and divides the board through POGO PIN connected mode.
Compared with the prior art, the invention has the beneficial effects that: the invention takes high-performance plastic as a carrier, integrally forms the oscillator, the power dividing plate, the reflecting plate and the filter, and processes the oscillator power dividing circuit, the reflecting surface and the filter cavity by utilizing the LDS and the electroplating process, thereby greatly saving the assembly time and greatly reducing the material cost.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a modular AFU structure according to the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic view of the integrated plastic carrier at one of its angles;
FIG. 4 is a schematic view of the integrated plastic carrier at another angle;
FIG. 5 is a cross-sectional view of the integrated plastic carrier;
FIG. 6 is an exploded view of the integrated plastic carrier at one of the angles;
FIG. 7 is an exploded view of the integrated plastic carrier at another angle;
FIG. 8 is a schematic plan view of a plurality of integrated plastic carriers arranged in an array;
FIG. 9 is a schematic view of the connection of the integrated plastic carrier, power splitting plate, frame and power transceiver module;
FIG. 10 is an exploded view of a prior art AFU architecture;
the labels in the figure are: 1. the antenna comprises a pole, 2, an antenna cover, 3, an antenna filter module, 4, a power division board, 5, a frame and power supply transceiving module, 6, an integrated plastic carrier, 7, a vibrator, 701, a radiation sheet, 702, a photo drawing sheet, 703, a plastic supporting medium, 704, a positioning hole, 8, a resonator, 801, a resonance rod, 802, a screw adjusting sleeve piece, 9, a coaxial cavity, 10, a feed pin, 11, a low-pass connecting rod, 12, a low-pass medium, 13, a spring pin, 14, a vibrator power division circuit, 15, a feed pin interface, 16, a support column, 17, a fastening screw, 18, a filter cover plate, 19, a spring pin medium, 20 and a reflection plate.
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 described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.
The principle of the invention is as follows: the invention relates to an integrated structure of a modular antenna filter, which is integrally formed by utilizing High Performance Polymer (HPP), and a vibrator power dividing circuit 14 is integrated on an integrated plastic carrier 6 at an antenna end by utilizing an LDS (laser direct structuring) process. The other surface of the integrated plastic carrier 6 is a reflecting surface of the antenna, and a coaxial cavity 9 is integrated on the reflecting surface of the antenna, so that the integrated structure of the antenna filter is realized. During installation, the vibrator unit is used as a module to be installed on the AAU frame and is connected with the power division board through the POGO PIN.
The invention is described in detail below with reference to the accompanying drawings:
the utility model provides a modularization AFU structure, as shown in fig. 1 and fig. 2, includes that pole 1 and detachable install the antenna unit on pole 1, the antenna unit includes that antenna house 2, antenna filter module 3, merit divide board 4 and install frame and power transceiver module 5 on the pole, and antenna house 2 covers and establishes outside power divider board 4 and fix and form the airtight space that is used for protecting power divider board on frame and power transceiver module 5, and the merit divides and installs on board 4 antenna filter module 3.
As shown in fig. 8, the antenna filter module 3 is composed of a plurality of integrated plastic carriers 6 distributed in an array, the integrated plastic carriers 6 are integrally injection-molded by using high performance polymer (HPP engineering plastic), the design of a small-sized frame structure is favorable for maintaining the flatness of the surface of the frame structure, and the influence of the material due to the temperature expansion coefficient is reduced, as shown in fig. 3 and 7, the front surface of the integrated plastic carriers adopts an LDS process to laser process the oscillator power dividing circuit 14 and then electroplate the feed conductors, four pillars 16 are designed at the bottom of each oscillator 7 on the front surface, and the supports are connected with the oscillator power dividing circuit 14 after being metalized to be used as an installation support and a feed core conductor of the oscillator radiating patch 701.
As shown in fig. 7, the oscillator 7 includes an oscillator radiation piece 701, a photo drawing piece 702 and a plastic supporting medium 703, the oscillator radiation piece 701 and the photo drawing piece 702 are processed into a whole by an in-mold injection molding process, and four positioning holes 704 are formed on the oscillator radiation piece 701 and welded with four brackets 16 on the front side to form a complete oscillator radiation unit.
As shown in fig. 6, the middle protruding portion of the integrated plastic carrier 6 is recessed in the middle to serve as a coaxial cavity 9 and metallized, and the whole plane area is metallized to serve as the antenna reflection surface and the ground plane. The lower part of the resonator inside the coaxial cavity 9 is designed with a pillar for welding the resonator, as shown in fig. 4, the filter cover plate 18 is detachably arranged outside the coaxial cavity, and the tuning screw sleeve 802 is installed on the filter cover plate 18.
As shown in fig. 5, the integrated plastic carrier 6 is molded in a corresponding position to insert a feed PIN 10, the feed PIN 10 transmits the antenna transmission and reception signal into the coaxial cavity 9, the filter signal is led out through a low-pass medium 12 at the other end of the coaxial cavity and is connected with the power division plate 4 through a spring PIN 13, and the spring PIN 13 is connected to the power division plate 4 through a POGO PIN connection mode.
As shown in fig. 9, the integrated plastic carrier 6 is fastened by fastening screws 17 by extending support studs on the AAU frame.
Fig. 10 is an exploded schematic view of a conventional AFU structure, which is composed of a vibrator 7, a power dividing board 4, a reflection board, a coupling board, a filter 8, and a connector. The invention mainly replaces AFU products and decomposes the AFU products into modular installation. Compared with an AFU product with an old structure, the invention takes high-performance plastic as a carrier, integrally forms the oscillator 7, the power dividing plate 4, the reflecting plate, the coupling plate and the filter 8, and processes the oscillator power dividing circuit 14, the reflecting surface and the filter cavity by using LDS and an electroplating process, thereby greatly saving the assembly time and greatly reducing the material cost.
The invention takes the module as an assembly unit, and the filter is relatively fixed in a unified way relative to the oscillator unit (namely the position of the filter corresponding to each group of oscillators is fixed), thereby greatly improving the phase consistency of the AFU and simplifying the design of a matching circuit of the filter.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a modularization AFU structure, includes that embrace pole and detachable install the antenna element who embraces the pole, its characterized in that: the antenna unit comprises an antenna housing, an antenna filter module, a power dividing plate, a rack and a power supply transceiving module, wherein the rack and the power supply transceiving module are installed on a holding pole, the antenna housing covers the power dividing plate and is fixed on the rack and the power supply transceiving module to form a closed space for protecting the power dividing plate, the antenna filter module is installed on the power dividing plate and consists of a plurality of integrated plastic carriers which are distributed in an array manner, one surface of each integrated plastic carrier is provided with a plurality of vibrators, the other surface of each integrated plastic carrier is integrally provided with a coaxial cavity for installing resonators, one end of each coaxial cavity is provided with a feed pin for transmitting and receiving signals of an antenna into the coaxial cavity, one end of each feed pin penetrates through the integrated plastic carrier and is connected to the vibrator, and the other end of each coaxial cavity is provided with a low-pass connecting rod, the low-pass connecting rod is provided with a low-pass medium and is connected to the power distribution plate through a spring needle.
2. A modular AFU structure according to claim 1, wherein: the integrated plastic carrier is provided with a vibrator power distribution circuit on one surface provided with a plurality of vibrators, the plurality of vibrators are connected to the vibrator power distribution circuit together, and a feed pin interface used for connecting a feed pin is further arranged on the vibrator power distribution circuit.
3. A modular AFU structure according to claim 2, wherein: the plurality of vibrators are arranged at intervals, a plurality of metalized pillars are arranged at the joint of each vibrator and the vibrator power distribution circuit, and positioning holes for installing the vibrators are correspondingly formed in the vibrators.
4. A modular AFU structure according to claim 3, wherein: the oscillator comprises an oscillator radiation piece, a photo-drawing piece and a plastic supporting medium, wherein the oscillator radiation piece, the photo-drawing piece and the plastic supporting medium are integrally formed by adopting an in-mold injection molding process, and the positioning hole is formed in the oscillator radiation piece.
5. A modular AFU structure according to claim 1, wherein: each integrated plastic carrier is sequentially connected with the power distribution plate, the rack and the power supply transceiver module through fastening screws.
6. A modular AFU structure according to claim 1, wherein: a plurality of resonators are installed in the coaxial cavity, and each resonator comprises a resonance rod and a screw adjusting sleeve installed in a matched mode with the resonance rod.
7. A modular AFU construction according to claim 6 wherein: the filter cover plate is detachably arranged outside the coaxial cavity, and the adjusting screw sleeve component is installed on the filter cover plate.
8. A modular AFU structure according to claim 1, wherein: the outside of POGO PIN is provided with POGO PIN medium, and the POGO PIN is connected to the merit and divides on the board through POGO PIN connected mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010870691.6A CN111987410A (en) | 2020-08-26 | 2020-08-26 | Modular AFU structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010870691.6A CN111987410A (en) | 2020-08-26 | 2020-08-26 | Modular AFU structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111987410A true CN111987410A (en) | 2020-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010870691.6A Pending CN111987410A (en) | 2020-08-26 | 2020-08-26 | Modular AFU structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111987410A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122702A (en) * | 2021-11-18 | 2022-03-01 | 中信科移动通信技术股份有限公司 | AFU antenna |
| WO2022242282A1 (en) * | 2021-05-21 | 2022-11-24 | 京信射频技术(广州)有限公司 | Afu antenna structure |
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2020
- 2020-08-26 CN CN202010870691.6A patent/CN111987410A/en active Pending
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Cited By (3)
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|---|---|---|---|---|
| WO2022242282A1 (en) * | 2021-05-21 | 2022-11-24 | 京信射频技术(广州)有限公司 | Afu antenna structure |
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Application publication date: 20201124 |
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