Modification of Fast Inverse Laplace Transform for Transient Response Analyses
Progress In Electromagnetics Research M, Vol. 121, 73-81, 2023
The fast inverse Laplace transform (FILT) proposed by Hosono is recently applied to various transient response problems in electromagnetics. The frequency-domain methods have been the mainstream of electromagnetic simulation for many years, and a lot of knowledge has been accumulated. The FILT makes it possible to utilize frequency-domain techniques to transient analyses, and it is expected to provide reliable transient response analyses. Since the evaluation points of the image function in the conventional FILT depend on the observation time, the scope of application is sometimes limited when evaluation of the image function takes a relatively long computation time. This paper modifies the FILT so that the evaluation points are independent of the observation time, and the number of image function evaluations is reduced.
"Modification of Fast Inverse Laplace Transform for Transient Response Analyses," Progress In Electromagnetics Research M
Vol. 121, 73-81, 2023.