Miniaturized wide-beam multi-frequency fusion transceiver integrated Beidou antenna based on bending array

Abstract

The invention belongs to the field of multi-band antennas, and specifically relates to a miniaturized wide-beam multi-frequency fusion transceiver integrated Beidou antenna based on bent arrays, aiming to solve the problem of complex structure, low elevation angle gain, and circular polarization of existing multi-band Beidou antennas. Poor axial ratio and low positioning accuracy. The invention includes: the Beidou antenna feeding circuit respectively sends out corresponding radio frequency signals through the B1 / B2 / B3 radio frequency port, the L radio frequency port and the S radio frequency port; the S radio frequency port is set at the center of the Beidou antenna feeding circuit, and the B1 / B2 / B3 radio The port and the L radio port are symmetrically arranged on both sides of the Beidou antenna feed module with the S radio port as the center; the antenna array includes the first bending element, the second bending element, the third bending element and the fourth bending element, The bending elements are distributed symmetrically around the S radio frequency port with a set distance and set angle selection, and are used to receive / send corresponding radio frequency signals. The present invention realizes a miniaturized wide-beam multi-frequency fusion transceiver integrated Beidou antenna through the bending element and the sharing of left and right circular polarization.

Description

technical field [0001] The invention belongs to the field of multi-band antennas, and in particular relates to a miniaturized wide-beam multi-frequency fusion transceiver integrated Beidou antenna based on bending elements. Background technique [0002] Satellite navigation systems are becoming more and more important in economic development, scientific research, disaster prevention and control, and military fields, and accurate reception of satellite navigation signals is particularly important. Satellite navigation signals are provided by ground monitoring stations distributed throughout the country. The ground monitoring station of the Beidou navigation system is a passive facility, which must rely on the antenna to receive navigation signals, and then convert the navigation signals into electric current and send them to the monitoring receiver of the ground monitoring station. Monitoring receivers receive the same signals as the user community, but require higher techni...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, the existing multi-band Beidou antenna has complex structure, low gain at low elevation angles, poor circular polarization axis ratio, and low positioning accuracy, the present invention provides a small Wide beam multi-frequency fusion transceiver integrated Beidou antenna, the Beidou antenna includes Beidou antenna feed circuit and antenna array;

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