Medium-sized dual-frequency vertical plane large flare angle spotlight antenna

Abstract

The invention discloses a medium-sized dual-frequency vertical plane large flare angle spotlight antenna. Through reasonably arranging structures inside the medium-sized dual-frequency vertical planelarge flare angle spotlight antenna, the aperture size of the antenna is reduced to 430 mm*430 mm, and performance indexes of the whole antenna structure can reach performance indexes of an antenna with the aperture size being 540 mm*540 mm, thus the realization of the performance indexes of the antenna can be ensured while the size of the whole antenna is reduced, thereby reducing the productioncost of the antenna. Through arranging a flanged reflecting plate and a baffle plate, a front-to-rear ratio and beam convergence of the antenna are increased, the beam width of a low-frequency horizontal plane is narrowed through arranging a low-frequency guiding plate, low-frequency gain is further improved, high-frequency gain and directivity are improved through arranging a high-frequency guiding plate, and + / -45-degree polarized isolation of high-frequency oscillators is improved by means of a coupling plate between the high-frequency oscillators. The medium-sized dual-frequency vertical plane large flare angle spotlight antenna is compact and reasonable in structure, and meets the usage requirements.

Description

technical field [0001] The invention relates to a spotlight antenna, in particular to a medium-sized dual-frequency vertical plane large-angle spotlight antenna. Background technique [0002] The antenna is an important part of the antenna feeder system of the mobile communication base station. Due to the difference in height and distance of the living environment of residents, mobile communication operators will use small micro-station antennas for network optimization according to network coverage requirements when building stations. The front-to-back ratio is an important index to measure the ability of the antenna to eliminate backward interference. It refers to the ratio of the maximum forward receiving capability of the receiving antenna to the maximum backward receiving capability. The larger the front-to-back ratio, the better the antenna's ability to resist backward interference. powerful. Most of the existing antennas meet the requirements of the front-to-back ra...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a medium-sized dual-frequency vertical surface large-angle spotlight antenna, aiming at solving the problem that the existing antenna achieves the front-to-back ratio requirement by increasing the size of the antenna opening, which leads to the excessive volume of the entire antenna and relatively high cost. high problem

Images