Instrumentación

 

Improved method for extracting the equivalent circuit elements of a CRLH-TL unit cell

 

E. Obiala-Ezenwa, M.C. Maya-Sánchez, and J.A. Reynoso-Hernández

 

Centro de Investigación Científica y de Educación Superior de Ensenada, División de Física Aplicada, Departamento de Electrónica y Telecomunicaciones, Carretera Ensenada-Tijuana No. 3918, Zona Playitas, 22860, Ensenada, B.C. México. e-mail: eobiala@cicese.edu.mx; mcmaya@cicese.mx; apolinar@cicese.mx.

 

Received 17 February 2014;
accepted 23 January 2015

 

Abstract

This paper presents an improved method to extract the parameters of an equivalent circuit model of a CRLH-TL unit cell. This method is based on the analysis of the unit cell equivalent circuit admittance and impedance frequency dependence. This procedure is validated using both, electromagnetic simulation data, and measured scattering parameters. The proposed methodology is easy, and has a better performance than the existing method.

Keywords: CRLH-TL unit cell; equivalent circuit; parameters extraction.

 

PACS: 84.30.Bv; 84.40.Dc; 85.40.Bh

 

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