矩形導波管／NRDガイド変換部を有する液晶テラヘルツ波可変移相器の設計とその特性評価

抄録

To realize ultra-high-speed terahertz (THz) wave wireless communication, it is required to realize a THz wave phase shifter used for such as a phased array antenna. Since liquid-crystals (LCs) have a large dielectric anisotropy even in the THz wave region, the LC-based THz wave applications are drawing attention. Different from light, the THz waves have longer wavelength, which cause a large amount of leaky wave and diffraction wave when radiating into free space. THz waves are generally carried using a rectangular waveguide (RWG), but tiny dimensions make it difficult to apply to integrated circuits. In this research, we design a LC THz wave variable phase shifter with a simple RWG/ NRD waveguide transition and evaluate its characteristics.