Twin-beam base station antennas having thinned arrays with triangular sub-arrays

Abstract

The invention relates to a dual-beam base station antenna with a sparse array with triangular sub-arrays. The dual-beam base station antenna includes a first array and a second array, each array having a plurality of radiating elements mounted to extend forward from respective first and second panels of an angled reflector. The radiating elements in each array extend in three columns, wherein theradiating elements in the intermediate column are vertically offset relative to the radiating elements in the outer column. The antenna also includes a first phase shifter and a second phase shifter.More than half of the output of the first phase shifter is connected to a respective first sub-array, wherein each first sub-array includes one radiating element from each of three columns in the first array and more than half of the output of the second phase shifter is connected to a respective second sub-array, wherein each second sub-array comprises one radiating element from each of three columns in the second array.

Description

[0001]Cross references to related applications[0002]This application claims the priority of Indian application serial No. 201921025801 filed on June 28, 2019 and U.S. provisional application serial No. 62 / 935,663 filed on November 15, 2019. The entire content of each application is incorporated by reference. Into this article.Technical field[0003]The present invention relates generally to radio communications, and more specifically, to dual-beam base station antennas used in cellular and other communication systems.Background technique[0004]Cellular communication systems are well known in the art. In a typical cellular communication system, a geographic area is divided into a series of areas called "cells", and each cell is served by a base station. The base station may include baseband equipment, radio transceivers, and base station antennas configured to provide two-way radio frequency ("RF") communications with subscribers located throughout the cell. In many cases, a cell can be...

AI Technical Summary

Problems solved by technology

Unfortunately, such a sectorized split antenna would require a large number of radiating elements, adding to the cost and weight of the antenna

Also, including six columns of radiating elements would increase the required width of the antenna, and the V-shaped reflector would increase the depth of the antenna, both of which would be undesirable

Images