Analysis of pulse responses from conducting strips with dispersion medium sandwiched air layer

Abstract

In this paper, we analyzed the pulse response from conducting strips with dispersion medium sandwiched air layer by using a combination of fast inversion of Laplace transform (FILT) method and point matching method (PMM), and investigated from pulse response the influence of periodically conducting strips and depth of air layer. From numerical results, we clarified the effect of the air layer, and characteristics of both air layer and periodically conducting strips are showed by differential waveform.

Numerical Analysis of Pulse Response for Slanted Grating Structure with an Air Regions in Dispersion Media by TE Case

“…In our previous paper [15], we proposed a method for determining soil electromagnetic parameters which matched experimentally obtained values [16], and investigated the fundamental problem of dispersion medium with reflective plate based on resulting waveform. Then, we analyzed the pulse response with periodically conducting strips in dispersion media by utilizing a combination of the point matching method (PMM) [17] and the fast inversion of Laplace transform (FILT) method [18]- [20], and investigated the effect of conducting strips and those widths from difference waveform [21,22]. In recent paper [23], we also have reported the distribution of electric field based on the resulting waveform as first investigation of imaging technology.…”

Modification of Fast Inverse Laplace Transform for Transient Response Analyses

“…The FILT has been combined with various frequency-domain techniques and applied to a lot of transient problems [5][6][7][8][9][10]. However, the evaluation points of the image function depend on the observation time, and it is undesirable for the problems, in which evaluation of the image function takes a relatively long computation time.…”

Optimal Parallel Algorithm of Fast Inverse Laplace Transform for Electromagnetic Analysis

“…To perform an inverse Laplace transform, many numerical implementations have been proposed [6]. The fast inverse Laplace transform (FILT) is an easy and concise implementation [7] that has been successfully applied to practical EM analyses for plasmonic antennas [8], ground-penetrating radar [9], transmission lines [10], biological media [11], low-frequency issues, and problems related to DC components [12,13,14]. FILT can obtain the time-domain response independently at an arbitrary single time; therefore, it is convenient for performing parallel computations.…”