Fully Differential Gyrator Using a Dynamically Biased 20 MHZ Lamé Mode Resonator

We demonstrate the first MEMS-only differential gyrator using a single Lamé mode electrostatic resonator. A gyrator is a two-port device that produces a pure non-reciprocal phase response and is considered a universal element from which isolators and circulators can be derived. We demonstrate in this work that gyration can be achieved using any electrostatic resonator, through very simple time-modulated biasing, without the need for any auxiliary spatio-temporal switching elements.