Highly Integrated VO2- based Antenna for Frequency Tunability at Millimeter-Wave Frequencies
Résumé
We report the monolithic integration of a metalinsulator
material (vanadium dioxide, VO2) for realizing a
frequency tunable antenna operating around 30 GHz. The design
of the device is based on a slot antenna excited by a microstrip
line having a length that can be conveniently varied using a VO2-
based switch. Compared to existing commercial solutions, the
proposed switches show better electrical properties at high
frequencies, with low losses (<1 dB) and high isolation (>20 dB)
up to 40 GHz. The simulation shows that the antenna can be
tunable around 30 GHz