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Dual-polarization radiating element and broadband base station antenna

A technology of radiation unit and base station antenna, which is applied to the combination of antenna units with different polarization directions, the structural form of radiation elements, antennas, etc., can solve the problems of high design difficulty, achieve simple structure, high performance, simple and compact structure, and reduce design effect of difficulty

Inactive Publication Date: 2011-09-07
COMBA TELECOM TECH (GUANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of broadband antenna has a wider bandwidth than conventional base station antennas, and the requirements for the standing wave ratio of the antenna are also extremely strict, which poses a high challenge in terms of design difficulty.

Method used

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  • Dual-polarization radiating element and broadband base station antenna
  • Dual-polarization radiating element and broadband base station antenna
  • Dual-polarization radiating element and broadband base station antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A dual-polarized radiation unit is a necessary constituent unit of an array antenna. Such as image 3 As shown, the dual-polarized radiation unit includes a metal reflective base plate 8, two pairs of oscillators 10 mounted on the metal reflective base plate 8, and corresponding connection terminals. The oscillator arms 4 of each pair of oscillators 10 are parallel to each other and have the same polarization direction; the oscillator arms 4 between the two pairs of oscillators 10 are perpendicular to each other. The feeder cables on each pair of vibrators 10 are connected in parallel to form a polarization. Side walls 9 are respectively provided on both longitudinal edges of the metal reflective bottom plate 8 . The vibrator arm 4 of the vibrator 10 is at a 45-degree angle to the longitudinal direction of the metal reflective base plate 8, forming a dual polarization of +45° polarization and -45° polarization, and the vibrator arms 4 of the two pairs of vibrator are ...

Embodiment 2

[0044] Such as Figure 5 As shown, on the basis of Embodiment 1, the arrangement of the oscillators has been changed. The oscillator arms 4 of the two pairs of oscillators 10 are arranged in a square, wherein the oscillator arms 4 of one pair of oscillators 10 are parallel to the longitudinal direction of the metal reflective base plate 8, and the oscillator arms 4 of the other pair of oscillators 10 are perpendicular to the longitudinal direction of the metal reflective base plate 8, A set of horizontally polarized and vertically polarized dual-polarized radiating units is formed.

Embodiment 3

[0046] Such as Figure 6 As shown, the vibrator arms 4 of each pair of vibrator 10 installed on the metal reflective base plate 8 are on the same straight line, that is, arranged in a line; the vibrator arms 4 between two pairs of vibrator 10 are arranged perpendicular to each other in a cross shape. The vibrator arms 4 of each pair of vibrator 10 described herein may form an angle of 45° with the longitudinal direction of the metal reflective base plate 8; The vibrator arm 4 is perpendicular to the longitudinal direction of the metal reflective base plate 8, forming a set of +45° polarized and -45° polarized dual-polarized radiation units.

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Abstract

The invention discloses a dual-polarization radiating element comprising a metal reflection baseplate and two pairs of vibrators arranged on the metal reflection baseplate, wherein vibrator arms of each pair of vibrators are mutually parallel or in the same line, and vibrator arms between the two pairs of vibrators are mutually perpendicular. The invention also discloses a broadband base station antenna which is formed by the linear arrangement of a plurality of dual-polarization radiating elements. The dual-polarization radiating element disclosed by the invention has the following advantages that the shapes of the vibrator arms are matched with a feeding mode of the vibrators, an integral forming mode of the stamping and bending of a metal plate is adopted, and the cost is greatly reduced; and the space between the vibrators is increased, meanwhile, the distance between the radiating elements is also increased, therefore the design difficulty of the partition degree of the antennae is reduced; and the characteristics of simple and compact structure, high performance, easiness of manufacture, convenience for installation and use, wide bandwidth, high gain, favorable cross polarization ratio, and favorable partition performance are achieved.

Description

【Technical field】 [0001] The invention relates to the field of mobile communication base station antennas, in particular to a dual-polarized radiation unit and a broadband base station antenna. 【technical background】 [0002] With the rapid development of mobile communication technology and applications, the electromagnetic environment is becoming more and more complex, which puts forward higher and higher requirements for the design of mobile communication dual-polarization directional antennas. The electrical performance of some antennas requires broadband, high isolation, and high gain. The main axis cross-polarization discrimination rate is required to be greater than 20dB, and the ±60° cross-polarization discrimination rate is required to be greater than 10dB. At the same time, it must have good directivity and beam convergence. And the coordination of the surrounding environment; in addition, it is required to be small in size, light in weight, beautiful in appearance,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q21/00
CPCH01Q9/28H01Q21/24
Inventor 刘良涛余国鑫
Owner COMBA TELECOM TECH (GUANGZHOU) CO LTD
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