On tunable switch-mode reactive networks: A gyrator-based resonator emulation

This paper introduces the concept of switch-mode tunable emulated reactive networks. The idea of implementing reactive networks based on the theory of gyrators is proposed and characterized in an application-driven design-oriented context. By means of using switch-mode power processing converters to synthesize gyrators, small capacitors or inductors are effectively multiplied to emulate larger ideally lossless reactive elements. The proposed idea enables to electronically tune the values of reactive elements by means of timing control variables. The proposed tunable reactive networks target many potential applications such as tunable-front-ends for energy harvesting, electronic compensating active power filters, and tunable-front-ends for wireless power transfer links.