3c01 Improvement of phase shifting properties in microstrip line type LC phase shifter

Abstract

Liquid crystal (LC) microwave phase shifter based on microstrip line has been investigated by introducing novel conversion circuit structure. The new circuit enables us to integrate LC materials easily with the high frequency electronic circuits. However, the operational frequency has been limited by about 10GHz so far. In this work, device structure is optimized by FDTD simulation to improve the performance and excellent phase shifting properties in MMW region can be attained.