Abstract
We developed equivalent circuits of phase change materials based on vanadium dioxide (VO2) thin films. These circuits are used to model VO2thin films for reconfigurable frequency selective surfaces (FSSs). This is important as it provides a way for designing complex structures. A reconfigurable FSS filter using VO2
ON/OFF switches is designed demonstrating −60 dB isolation between the
states. This filter is used to provide the transmission and reflection
responses of the FSS in the frequency range of 0.1–0.6 THz. The
comparison between equivalent circuit and full-wave simulation shows
excellent agreement.
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