A communication system based on omnidirectional dual circularly polarized phased arbitrary multi-polarized antenna and multi-polarized channel

Abstract

The present invention provides a communication system based on omnidirectional dual circular polarization phase-controlled arbitrary multipolar antenna and multipolarization channel, including: antenna components, phase shift networks and signal decoupling networks; the antenna components include: omnidirectional Dual circularly polarized antennas, dual feed ports; the dual feed ports are cascaded with phase shifting networks and signal decoupling networks in turn; in the transmitting part of any multi-polarized antenna based on omnidirectional dual circular polarization, the signal Transmission to the dual circularly polarized antenna through the signal decoupling network, phase shifting network, and dual-feed ports in turn for radiation; in the receiving part of any multi-polarized antenna based on omnidirectional dual circular polarization, the dual circularly polarized antenna receives After receiving the electromagnetic signal, it is output through the phase shift network and the signal decoupling network in turn. In the present invention, any polarized antenna can realize arbitrary multi-polarized omnidirectional radiation, has high gain, and has high signal isolation between multi-polarized channels; the present invention has reasonable structure, convenient use, and good omnidirectional performance.

Description

technical field [0001] The present invention relates to the technical field of antennas and communication systems, in particular, to a communication system based on omnidirectional dual circular polarization phase-controlled arbitrary multi-polarization antennas and multi-polarization channels, especially to a communication system through omnidirectional dual circular polarization An antenna with any polarization and a multi-polarization channel simultaneous communication system based on the antenna. Background technique [0002] According to the basic theory of electromagnetic waves, arbitrary linearly polarized waves can be synthesized by double circularly polarized waves with opposite rotations, so any polarized antenna can be phase-controlled synthesized by dual circularly polarized antennas. In the prior art, there is an urgent need for a communication system based on omnidirectional dual circular polarization phase-controlled arbitrary multi-polarization antennas and m...

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Problems solved by technology

There is still room for improvement in the structure and performance of this patent

[0005] The article "Dual CP Polarization Diversity and Space Diversity Antennas Enabled by a Compact T-shaped Feed Structure" published in IEEE Access in 2019 proposes an omnidirectional antenna that stimulates dual circular polarization at the same end of the antenna through a T-shaped head, avoiding antenna The feed cables at the upper and lower ends affect the radiation pattern, and the characteristics of the dual circular polarization of the antenna are simulated and measured, but the literature does not analyze and measure the characteristics of the dual circular polarization combined with any linear polarization , and because the same end is fed, the initial phases of the dual circularly polarized waves radiated by the antenna are not the same, so the phase of the synthesized linearly polarized wave needs to be calibrated

At the same time, the simultaneous radiation characteristics of arbitrary multi-polarizations have not been studied, and the utilization of this characteristic for multi-channel communication has sufficient potential

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