An Investigation of Second-Harmonic Shifting Characteristic of Stepped-Impedance Resonators

摘要

This paper reports an investigation of second-harmonic shifting characteristic of SIR technology. In our study, two features of SIR technology including shortened length and second-harmonic shifting characteristic have been investigated with respect to electric current density and equivalent model. It is found that those features are obtained by the effect of equivalent L-C lumped circuits at steps which are confirmed in our study. In addition, proper SIR dimensions enabling second-harmonic frequency at greater than two times of a fundamental frequency (> 2f_0) have also been recommended in this paper.