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Integrated four-point differential feed low-profile dual-polarized oscillator unit and base station antenna

A low-profile, dual-polarization technology, applied in the field of antennas and communications, can solve the problems of inconsistent current distribution of the two polarized vibrator arms, increased processing and assembly complexity of the antenna array, and asymmetrical field patterns of the two polarized patterns. , to achieve the effect of saving manpower, simple structure and reducing errors

Inactive Publication Date: 2018-06-08
SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of large-scale antenna arrays, especially in 5G low-frequency bands (such as 3.3-3.6GHz, 4.8-5GHz proposed by the Ministry of Industry and Information Technology), will significantly increase the complexity of antenna array processing and assembly
[0003] At present, there are mainly two forms of base station antenna oscillators, die-casting oscillators and PCB oscillators, both of which have their own advantages and disadvantages: die-casting oscillators are integrally formed and have a high degree of integration, but when used in large-scale arrays, the weight of the antenna array is relatively large; PCB The vibrator is relatively light in weight, but requires more assembly processes

Method used

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  • Integrated four-point differential feed low-profile dual-polarized oscillator unit and base station antenna
  • Integrated four-point differential feed low-profile dual-polarized oscillator unit and base station antenna
  • Integrated four-point differential feed low-profile dual-polarized oscillator unit and base station antenna

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Example Embodiment

[0048] Example 1

[0049] Reference Figure 1-4 In this embodiment, the dielectric substrate 1 and the dielectric support 2 are integrally molded by injection molding, and the metal radiation surface 3 is formed on the dielectric substrate 1 by laser direct molding. The feed pin 5 is also set on the dielectric support by laser direct molding. 2, finally install the dielectric support 2 on the 180° phase difference plate 10; the dual-polarized vibrator unit provided by the present invention directly forms the overall shape of the vibrator through the above method, and then forms the metal radiation surface by laser molding , Simple structure, no need for conventional screws and other fasteners during assembly, less assembly process, saving manpower, reducing cost, suitable for mass production, and reducing errors caused by human operation, greatly improving Productivity.

[0050] Of course, in other embodiments, the formation methods of the dielectric substrate 1, the dielectric su...

Example Embodiment

[0072] Example 2

[0073] This embodiment is a modification made on the basis of Embodiment 1. In this embodiment, the metal radiating surface 3 adopts a direct feeding method.

[0074] Specifically, refer to Picture 10 , The setting of the coupling piece and the annular coupling gap is omitted. The four power feeding parts on the metal radiating surface 3 are directly provided with a through hole penetrating the metal radiating surface 3 and the dielectric substrate 2, and the through hole is formed by metallization Hole 7, the metalized via 7 directly connects the metal radiation surface 3 and the corresponding feeding pin 5.

[0075] Compared with the first embodiment, this embodiment omits the arrangement of the coupling piece, the structure is simpler, and the assembly is more convenient.

Example Embodiment

[0076] Example 3

[0077] In this embodiment, this embodiment is a modification made on the basis of Embodiment 1. In this embodiment, the metal radiating surface 3 adopts the power feeding mode of coupling feeding.

[0078] Specifically, refer to Picture 11 In this embodiment, the metal radiating surface 3 is a complete radiating surface, and the coupling plate is at a position corresponding to the feeding part on the back of the dielectric substrate 2 and the coupling plate is connected to the feed pin 5, and the coupling plate and the metal radiating surface 3 are arranged in parallel up and down Realize feed coupling.

[0079] Further, the coupling piece includes two semi-circular coupling pieces 16 and semi-circular coupling pieces 17 which are symmetrically arranged with respect to the line connecting the two feed pins 5 in the same group. Of course, in other embodiments, the specific structure and shape of the coupling sheet can also be adjusted according to specific needs, ...

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Abstract

The invention provides an integrated four-point differential feed low-profile dual-polarized oscillator unit and a base station antenna comprising the dual-polarized oscillator unit. The dual-polarized oscillator unit comprises a dielectric substrate and a 180-degree phase differential plate which are vertically arranged in parallel. The dielectric substrate and the 180-degree phase differential plate are connected through a dielectric bracket in a supporting way. The surface, which is back to the 180-degree phase differential plate, of the dielectric substrate is provided with a metal radiation surface. The metal radiation surface is provided with four feed parts of which every two are grouped. The two feed parts of the same group are centrally symmetrical about the metal radiation surface. The two groups of feed parts are orthogonally arranged at the angles of +45 degrees and -45 degrees. The positions, which are corresponding to the four feed parts, of the 180-degree phase differential plate are respectively provided with a feed connecting point. Each feed part and the corresponding feed connecting point are connected through a feed pin. The two feed connecting points connectedwith the feed parts of the same group are connected and then connected with an antenna feed network.

Description

technical field [0001] The invention relates to the technical field of antennas and communications, in particular to an integrated four-point differential feed low-profile dual-polarized vibrator unit and a base station antenna. Background technique [0002] The base station antenna is the electrical bridge between the user terminal and the base station in the air in the mobile communication system. It is the most critical component in the entire antenna feeder system. The quality of the base station antenna directly affects the communication quality. With the development of 5G communication, massive MIMO (massive antenna technology) is one of the key technologies of 5G. Large-scale antenna arrays will significantly improve system capacity, communication rate and bandwidth. However, the use of large-scale antenna arrays, especially in the 5G low-frequency band (such as 3.3-3.6GHz, 4.8-5GHz proposed by the Ministry of Industry and Information Technology), will significantly i...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/24
CPCH01Q1/246H01Q1/38H01Q1/50
Inventor 张凯张思远魏珂
Owner SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS
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