Tunability of dual-frequency immittance inverters on dual-composite right/left-handed transmission lines (D-CRLH TL) with variable capacitors

Abstract

Tunability analysis is presented for dual-frequency immittance inverters based on the dual-composite right/left-handed transmission line (D-CRLH TL) unit cells with variable capacitors. The inverter tunability is limited by a tolerable variation of the inverter parameter. At least ±10% tuning of the both inverter operational frequencies is shown feasible.