Nonlinear multiconductor transmission line analysis of broadband switching metamaterials

In this paper we present a multiconductor transmission line (MTL) model to analyze the time-domain response of broadband switching metamaterials. This analysis employs coupled transmission lines loaded with nonlinear elements to model the response of these structures to a vertically polarized free space excitation. Using this analysis we examine the time-domain response of a broadband switching metamaterial structure loaded with high-speed Schottky diodes. Experimental results of the metamaterial in WR-284 waveguide are presented, which show good agreement with results generated from the MTL analysis.