Nonlinear metamaterial composite structure with tunable tunneling frequency

Abstract

A nonlinear metamaterial composite structure with tunable tunneling frequency is presented. Based on theoretical calculation results, a nonlinear metamaterial sandwich structure constructed by epsilon negative metamaterial (ENM), mu negative metamaterial (MNM) and nonlinear double negative metamaterial (NDNM) is designed, and its nonlinear properties are investigated. The measured results show that the tunneling frequency of the sandwich structure ENM-NDNM-MNM can be controlled conveniently by signal power.