volume | PIER Journals

Abstract

In this paper, a new structure is introduced to design resonators with very short length and without any discontinuity.The introduced structure, called Nonuniform Impedance Resonator (NIR), is an open- or short-circuited Nonuniform Transmission Line (NTL).To synthesize NIRs, strip width or the characteristic impedance function of the microstrip NIRs is expanded in a truncated Fourier series, first. 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.

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Dr. Mohammad Khalaj-Amirhosseini