Title :
The generalized method of characteristics for waveform relaxation analysis of lossy coupled transmission lines
Author_Institution :
IBM Gen. Technol. Div., East Fishkill, NY, USA
Abstract :
The transient response of lossy coupled transmission lines is simulated by iterative waveform relaxation analyses of equivalent disjoint networks constructed with congruence transformers, fast-Fourier-transform waveform generators, and characteristic impedances synthesized by the Pade approximation. A two-order reduction of central-processing-unit time and a one-order savings in computer memory have been achieved. A lossy directional coupler is simulated for illustration.<>
Keywords :
electronic engineering computing; equivalent circuits; fast Fourier transforms; iterative methods; strip lines; transient response; waveguide theory; FFT; Pade approximation; central-processing-unit time; characteristic impedances; computational algorithms; computer memory savings; congruence transformers; equivalent disjoint networks; fast-Fourier-transform waveform generators; generalized method; lossy coupled transmission lines; lossy directional coupler; method of characteristics; transient response; two-order reduction; waveform relaxation analysis; Analytical models; Computational modeling; Couplings; Impedance; Network synthesis; Propagation losses; Signal generators; Transformers; Transient response; Transmission lines;
Conference_Titel :
Microwave Symposium Digest, 1989., IEEE MTT-S International
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MWSYM.1989.38810
