Algoritmo FDTD para a análise de circuitos passivos emmicrofita com dielétricos de pequenas perdas

Abstract

The present work presents results of the application of the FDTD technique on microstrip circuits. These circuits are analyzed in time domain by their impulse response and in frequency domain where the scattering parameters are presented. These analyses are realized with the utilization of the WP-PML boundary condition that allows theevaluation of losses on the circuits and their effects on the merit figures that represents them. Circuits including high and low loss substrate were analysed and results showed the little attenuation caused by the low losses in both domains. This context show the applicability of the technique in microstrip circuits under different conditions, including thepossibility of an impulsional response obtained with less use of mathematical manipulations between domains.