Abstract
Provided is a radio wave control element that can shorten a switching time and has a small loss of radio waves. The radio wave control element includes a first electrode, a liquid crystal composition layer, and a second electrode, in which the radio wave control element has a metasurface structure in which a plurality of microstructures are arranged, the metasurface structure constitutes at least a part of the first electrode, and an interlayer in which a maximum refractive index change per unit voltage in radio waves in a wavelength range of 300 μm to 30 cm is 0.001 (1/V) or less is provided between one of the first electrode or the second electrode, and the liquid crystal composition layer.
Full Text
What is claimed is:
Provided is a radio wave control element that can shorten a switching time and has a small loss of radio waves. The radio wave control element includes a first electrode, a liquid crystal composition layer, and a second electrode, in which the radio wave control element has a metasurface structure in which a plurality of microstructures are arranged, the metasurface structure constitutes at least a part of the first electrode, and an interlayer in which a maximum refractive index change per unit voltage in radio waves in a wavelength range of 300 μm to 30 cm is 0.001 (1/V) or less is provided between one of the first electrode or the second electrode, and the liquid crystal composition layer.
Timeline
Filed
03/13/2026Published
07/16/2026Granted
Not AvailableIPC Codes(2)
H01Q 15/00:Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices (variable for purpose of altering directivity H01Q 3/00; arrangements of such devices for guiding waves H01P 3/20; variable for purpose of modulation H03C 7/02)
H01Q 15/14:Reflecting surfaces; Equivalent structures