Open AccessTime‐domain analysis of extended composite right/left handed transmission line excited by modulated signal using unconditionally stable FDTD algorithm
Author(s) -
Afrooz Kambiz
Publication year - 2018
Publication title -
iet science, measurement and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.418
H-Index - 49
eISSN - 1751-8830
pISSN - 1751-8822
DOI - 10.1049/iet-smt.2017.0424
Subject(s) - phasor , algorithm , finite difference time domain method , transmission line , mathematics , time domain , matrix (chemical analysis) , spectral radius , computer science , physics , electric power system , eigenvalues and eigenvectors , optics , telecommunications , power (physics) , materials science , quantum mechanics , composite material , computer vision
In this study, the extended composite right/left handed (ECRLH) transmission line equations are solved by an unconditionally stable finite‐difference time‐domain algorithm. The results of the proposed algorithm are verified by the conventional one. Amplification matrix of the unconditionally stable algorithm is extracted. The results show that the spectral radius of the amplification matrix of the proposed algorithm is less than one and the proposed algorithm is unconditionally stable. To overcome the numerical dispersion, the complex phasor method is applied to the ECRLH equations. The new equations are solved by the proposed algorithm and results confirm the accuracy of the new equations. By using the complex phasor method and proposed algorithm, the CPU time is reduced about 98%, which shows the efficiency of the proposed method.