Conference paper

Tunable Capacitors and Microwave Filters Based on Vanadium Dioxide Metal-Insulator Transition

We report the fabrication, modeling and characterization of novel microwave tunable capacitors based on the metal-insulator transition (MIT) of Vanadium Dioxide (VO2). We present the advantages of VO2-based capacitors over alternative technologies for microwave reconfigurable electronics in terms of ease of integration, design and performance at high frequency. We show the potential of the proposed devices for RF reconfigurable electronics by fabricating a tunable bandstop filter (22.5- 19.8 GHz) with insertion loss < 2 dB up to 40 GHz.


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