LCD Phase Shifter and Antenna

Abstract

Embodiments of the present invention provide a liquid crystal phase shifter and an antenna, which relate to the field of electromagnetic wave technology, and can adjust the carrier frequency applicable to the liquid crystal phase shifter, thereby improving the compatibility of the liquid crystal phase shifter. The liquid crystal phase shifter includes: at least one phase shifting unit, the phase shifting unit includes a microstrip line, a phase control electrode and two feed terminals, the microstrip line is located between the first substrate and the liquid crystal layer, and the phase control electrode is located at the second Between the substrate and the liquid crystal layer, in the direction perpendicular to the plane where the first substrate is located, the two ends of the microstrip line overlap with the two feeding terminals respectively; the phase control electrode includes at least two sub-electrodes spaced apart from each other, the microstrip line The stripline includes an effective line segment corresponding to each sub-electrode, wherein, in a direction perpendicular to the plane where the first substrate is located, each sub-electrode covers the corresponding effective line segment.

Description

technical field [0001] The invention relates to the technical field of electromagnetic waves, in particular to a liquid crystal phase shifter and an antenna. Background technique [0002] A phase shifter is a device that can adjust the phase of electromagnetic waves. It is widely used in radar, spacecraft attitude control, accelerators, communications, instrumentation, and even music. [0003] With the development of technology, a new type of liquid crystal phase shifter has appeared. However, with the current design of liquid crystal phase shifters, if the carrier frequency of the liquid crystal phase shifter needs to be adjusted, a new liquid crystal phase shifter needs to be used, that is, Liquid crystal phase shifters are less compatible. Contents of the invention [0004] Embodiments of the present invention provide a liquid crystal phase shifter and an antenna, which can adjust the carrier frequency applicable to the liquid crystal phase shifter, thereby improving t...

AI Technical Summary

Problems solved by technology

[0003] With the development of technology, a new liquid crystal phase shifter has appeared, however, the current liquid crystal phase shifter design, if you need to adjust the carrier frequency of the liquid crystal phase shifter, you need to use a new liquid crystal phase shifter, that is, The compatibility of liquid crystal phase shifter is poor

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