Differential feed broadband dual-polarized plane base station antenna

A technology of differential feeding and base station antenna, which is applied in the direction of antenna, antenna parts, antenna grounding switch structure connection, etc., can solve the problems of RF front-end loss, low integration, and system efficiency reduction, and achieve stable pattern and antenna structure Simplicity, the effect of a simple feeding network

Active Publication Date: 2017-01-04
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of balun will cause RF front-end loss, lower system efficiency, and lower integration

Method used

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  • Differential feed broadband dual-polarized plane base station antenna
  • Differential feed broadband dual-polarized plane base station antenna
  • Differential feed broadband dual-polarized plane base station antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] Such as figure 1 and Figure 4 As shown, a differentially fed broadband dual-polarized planar base station antenna includes an antenna radiation unit 1, a reflector 2 and a four-port feed network 4, and the antenna radiation unit 1 is fixed on the reflector 2 by four support columns 3 above, the distance is 40mm.

[0034] Such as figure 2 As shown, the antenna radiation unit 1 is a planar structure, including a dielectric substrate 5, a first polarizer 7, a second polarizer 10, and a coupling unit 6, and the first polarizer 7 is specifically a +45-degree polarizer , the second polarizer is a -45 degree polarizer, the first polarizer 7 is etched on the lower surface of the dielectric substrate 5, the second polarizer 10 is etched on the upper surface of the dielectric substrate 5, the The coupling unit 6 is etched on the upper surface and the lower surface of the dielectric substrate 5 , and the four-port feed network 4 is located at the center of the dielectric subs...

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PUM

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Abstract

The invention discloses a differential feed broadband dual-polarized plane base station antenna. The differential feed broadband dual-polarized plane base station antenna comprises an antenna radiating unit, a reflecting plate and a four-port feed network, wherein the antenna radiating unit is fixed above the reflecting plate through a support column; the antenna radiating unit is of a plane structure, and comprises a dielectric substrate, a first polarized vibrator, a second polarized vibrator and a coupling unit; the first polarized vibrator is etched on the lower surface of the dielectric substrate; the second polarized vibrator is etched on the upper surface of the dielectric substrate; the coupling unit is etched on the upper surface and the lower surface of the dielectric substrate; and the four-port feed network is positioned at the center of the dielectric substrate. The antenna has the advantages of broad bandwidth, high isolation degree, high gain, stable radiation direction pattern, simple and compact structure and the like, is applicable to mobile communication base station antennas, and is easy to be integrated with a differential circuit.

Description

technical field [0001] The invention relates to the field of mobile communication base station antennas, in particular to a differential feed broadband dual-polarized planar base station antenna. Background technique [0002] The rapid development of the mobile communication system has made the competition in the mobile communication market more intense, making the communication channel crowded, and the requirements for the communication system have been continuously improved. The base station antenna is an important part of the mobile communication system, and its performance plays an important and even decisive role in the communication system. Today, the development trend of base station antennas is no longer a single antenna that works independently, but more and more integrated with other communication units to jointly complete signal processing and propagation. [0003] Because the balanced circuit can greatly reduce crosstalk, the RF front-end usually uses a differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q1/24
CPCH01Q1/246H01Q1/38H01Q1/50Y02D30/70
Inventor 李融林高晓娜崔悦慧刘辉牛耀
Owner SOUTH CHINA UNIV OF TECH
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