Table of Contents
International Journal of Microwave Science and Technology
Volume 2008, Article ID 538216, 8 pages
Research Article

Characterization of Microstrip Ring with a Narrow Gap by an Iterative Method

1Laboratoire de Physique de la Matière Molle, Faculté des Sciences de Tunis, 2092 El Manar, Tunisia
2Laboratoire d'Electronique, Groupe Microonde ENSEEIHT, 31071 Toulouse, France

Received 6 December 2006; Revised 12 April 2007; Accepted 27 February 2008

Academic Editor: Safleddin Safavi-Naeini

Copyright © 2008 M. Yeddes et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper presents an implementation of an iterative method based on the wave's concept, for analysing a ring resonator. This method includes a two-dimensional fourier modal transformation (2D-FMT) in a wave guide environment. The method has the advantage of simplicity in that it does not involve basis functions and inversion of matrices, as used in other calculation methods. Therefore, it is capable of analyzing larger bodies than other classical techniques. An implementation of the iterative calculation is shown for the extraction of S parameters of microwave components. The good agreement between simulation results and experimental published data justifies the design procedure and validates the present analysis approach.