CRLH unit cells — The key for new design methods of distributed active and passive microwave devices and circuits

Abstract

Recent applications of CRLH unit cells used to design distributed passive and active microwave devices and circuits are presented. In particular, new configurations for small-size passive devices based on quarter-wavelength transmission line sections, as well as microwave amplifiers, oscillators and frequency doublers are analyzed. The performances of these new circuit topologies are put into evidence numerically and the results are validated by experiments.