Broadband Equivalent Circuit Model for a Coplanar Waveguide Line Loaded with Split Ring Resonators

A new equivalent circuit for a coplanar waveguide loaded with split ring resonators is presented. The traditional circuits that model these devices are only able to characterize the left-handed propagation band, and their response is very similar to the real one within a very limited bandwidth. In contrast, this proposed broadband equivalent circuit is able to portray not only the left-handed propagation band, but also the right-handed one that occurs at higher frequencies. Besides, the response of this kind of basic cells can be adjusted with the proposed circuit model in a bandwidth close to a decade.This work was supported by the Ministerio de Ciencia e Innovacion, Spanish Goverment, under Research Projects TEC2010-21520-C04-03 and -01, and by the Autonomous Government of Castilla-La Mancha under Research Projects PPII10-0047-0220 and PPII10-0027-1277.Sanz, V.; Belenguer Martínez, Á.; Lucas Borja, A.; Cascon Lopez, J.; Esteban González, H.; Boria Esbert, VE. (2012). Broadband Equivalent Circuit Model for a Coplanar Waveguide Line Loaded with Split Ring Resonators. International Journal of Antennas and Propagation. 2012:1-6. doi:10.1155/2012/613518S16201