Table of Contents
International Journal of Microwave Science and Technology
Volume 2008, Article ID 869720, 5 pages
Research Article

Using Inhomogeneous Planar Layers as Impedance Matchers between Two Different Mediums

Electrical Engineering Department, Iran University of Science and Technology, Narmak, 16846 Tehran, Iran

Received 8 October 2007; Accepted 28 January 2008

Academic Editor: Kamya Yekeh Yazdandoost

Copyright © 2008 Mohammad Khalaj-Amirhosseini. 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.


A method is proposed to synthesize optimally inhomogeneous planar layers (IPLs) as impedance matchers between two mediums. First, the electric permittivity function of the IPL is expanded in a truncated Fourier series. Then, the optimum values of the coefficients of the series are obtained through an optimization approach. The usefulness of the proposed method is verified using some examples.