Title :
Planar type liquid crystal phase shifter based on the microstripline structure
Author :
Nose, Takashi ; Iisaka, Takuya ; Ito, Yu ; Sasamori, Takayuki ; Isota, Yoji ; Ito, Ryouta ; Honma, Michinori ; Watanabe, Toshio ; Ito, Kei
Author_Institution :
Dept. Electron. & Inf. Syst., Akita Prefectural Univ., Yurihonjyo, Japan
Abstract :
Novel conversion circuit, which connects normal microstripline (MSL) and inverted-MSL (I-MSL) structure, is designed to attain planar type liquid crystal (LC) phase shifter based on the MSL structure. The new circuit enables us to introduce a thin LC layer easily on the MSL substrate by using normal sandwich cell structure. Here, fundamental phase shift properties are estimated, and then the conversion circuit, which is the key part of the device, is optimized to improve the device performance.
Keywords :
liquid crystal devices; micro-optics; optical design techniques; optical phase shifters; conversion circuit; fundamental phase shift properties; inverted microstripline structure; normal sandwich cell structure; planar type liquid crystal phase shifter; thin liquid crystal layer; Indium tin oxide; Microstrip; liquid crystals; microstripline; phase shifter;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665416