Linear polarized wave transmitting-receiving device

Abstract

The invention relates to a linear polarized wave transmitting-receiving device. The linear polarized wave transmitting-receiving device comprises an electromagnetic wave linear polarized unit, a transmission assembly and a drive module, wherein the electromagnetic wave linear polarized unit comprises at least one meta-material layer; the meta-material layer comprises a base material and a plurality of manmade micro structures with anisotropic electromagnetic properties arranged on the base material, wherein the plurality of manmade micro structures are arranged on a plane vertical to the incidence direction of the electromagnetic wave; the transmission assembly is driven based on a drive module to rotate the electromagnetic wave linear polarized unit, so that the direction from which the electromagnetic wave linear polarized unit receives the linear polarized wave is the same as the incident electromagnetic wave polarized direction. By rotating the electromagnetic wave linear polarized unit, the direction from which the electromagnetic wave linear polarized unit receives the polarized wave is the same as the polarized direction of the incident electromagnetic wave, thereby timely adjusting the polarized direction from which a ground base station antenna or a wireless mobile communication device receives the polarized wave to improve the electromagnetic wave communication efficiency.

Description

technical field [0001] The invention relates to the field of linear polarization of electromagnetic waves based on metamaterials, in particular to a linearly polarized wave transceiver based on metamaterials. Background technique [0002] Satellite communication uses the microwave frequency range of 300MHz-30GHz. The purpose of using high-frequency signals is to ensure that the electromagnetic waves emitted on the ground can penetrate the ionosphere and reach the satellite. In satellite communication, different satellites, or transponders on the same satellite use different frequency ranges, and different frequency ranges have different code names. For example, the code name of the 3.95-5.85GHz frequency range is C, and this frequency range is referred to as the C-band; the code name of the 12.24-18GHz frequency range is Ku, and this frequency range is referred to as the Ku-band. [0003] The electromagnetic wave used in the satellite communication of the project is in the ...

AI Technical Summary

Problems solved by technology

However, the earth is a sphere, so the geographic location of the transceiver station is different, but the downlink beam of the satellite signal propagates in a straight line, and this causes the same polarization signal received by each fixed transceiver station on the ground at different azimuths, so that The deviation of the signal polarization direction (referring to the electric field polarization direction of electromagnetic waves) received by the transceiver station affects the communication quality

In the same way, since the geographical location of the mobile transceiver station or the direction of electromagnetic wave reception changes at any time, the polarization direction will also deviate when it receives the same polarization signal

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