Vanadium Dioxide for Reconfigurable Antennas and Microwave Devices: Enabling RF Reconfigurability Through Smart Materials

Vanadium dioxide (VO2) can enable reconfiguration that is no longer restricted by biasing network limitations. This is an exciting opportunity for researchers as it allows for a new degree of freedom in antenna and microwave circuit designs that do not have to be restricted anymore by limitations imposed due to their biasing networks. In this workshop we will explore the trade-space of VO2 as a new method to reconfigure, tune, and/or program antennas and radiofrequency (RF) devices and we will see how and why the VO2 biasing mechanism, and the antenna are electrically decoupled. We will then delve into the design spectrum and consider applications that require wideband tuning, low-loss structures (eg arrays and reflect-arrays), and even reconfigurable cloaks. The presented results are validated through a series of prototypes that demonstrate VO2 applicability. Results highlighting the potential of this new reconfiguration technique in other applications where the VO2 is activated optically, will also be discussed.