Use of Thermochromic Properties of VO2 for Reconfigurable Frequency Selection

The thermochromic nature of vanadium dioxide (VO2) has facilitated many promising applications for reconfigurable frequency selectivity. phase-changing property VO2 was used to realise a frequency-selective surface (FSS) capable manipulating electromagnetic waves different functionalities. Diffractive optical elements (DOE) are diffracting laser beams form conductive FSS images on the wafer dipoles generate stop band response 12 dB and 10 unit cells single dipole double at 3.5 GHz, respectively. A GHz array is projected by DOE 2-inch with filtering effect 13 9.5–10.5 GHz. This solution design radar cross-section (RCS) modification reflected about 20 higher reflectivity in backscattering direction than specular direction.