Small high and low frequency coaxial dual-polarized base station antenna unit

Abstract

The invention provides a small high and low frequency coaxial dual-polarized base station antenna unit, and effectively solves the problem that a present coaxial base station antenna unit is large is size on the premise that high radiation performance of a high frequency oscillator is ensured. The antenna unit comprises a low frequency oscillator (1), a high frequency oscillator (2) and a reflecting plate (4), wherein the low frequency oscillator (1) is coaxial with the high frequency oscillator (2), and mounted vertically on the reflecting plate (4); and the axes of the two oscillators (1 and 2) are vertical to the reflecting plate (4) and intersect with the central position of the reflecting plate. An isolating ring composed of multiple isolating sheets (3) is arranged on the reflecting plate (4) by taking the central position of the reflecting plate as the circular center, and used to reduce coupling between the low frequency oscillator (1) and the high frequency oscillator (2) and adjust the directional diagram of the high frequency oscillator (2) at the same time. The small high and low frequency coaxial dual-polarized base station antenna unit has the advantages of small size, wide frequency band and high radiation performance, and can be used to a base station antenna array in a new generation of communication system.

Description

technical field [0001] The invention belongs to the technical field of antennas, and relates to a small high-low frequency coaxial dual-polarization base station antenna unit with excellent radiation performance, which can be used in mobile communication base station antenna arrays. Background technique [0002] The base station is a public mobile communication base station, which is a form of radio station, and refers to a radio transceiver station that transmits information between mobile phone terminals through a mobile communication switching center in a certain radio coverage area. The information transmission is carried out through the antenna erected on the base station. Therefore, the performance of the base station antenna determines whether it can meet the needs of users. Base station antennas can be divided into single-polarization and dual-polarization base station antennas according to the polarization mode. For traditional single-polarized antennas, when the n...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and propose a small high-low frequency coaxial dual-polarized base station antenna unit, which can effectively solve the existing high-low frequency coaxial antenna unit under the premise of ensuring that the high-frequency vibrator has good radiation characteristics. Technical problem with the large size of the axis base station antenna unit

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