Analysis of electromagnetic coupling through a thick aperture in multilayer planar circuits using the extended spectral domain approach and finite difference time-domain method

Characteristics of slot-coupled double-sided microstrip lines with various coupling slots

“…The basic physical concept of the diffracted fields, the so-called creeping waves, is the same as that of the geometrical theory of diffraction [2]. However, the asymptotic theory of diffraction [5] provides more accurate estimations of the creeping waves. The method to be used follows.…”

“…It is just this case we treat here. The present analysis is based on the asymptotic theory of diffraction [5]. This is a theory that describes the diffracted fields in term of the geodesic coordinate system defined on any smooth convex body.…”

“…The scattered fields are divided into the reflected and the creeping waves. The asymptotic formulas of the latter are obtained by integrating the induced creeping-wave current on the surface, the expressions of which have been derived in a previous article [5]. The specular reflected fields are calculated by the simple method of physical optics.…”

Transient analysis of printed lines using finite‐difference time‐domain method

“…The physics and engineering aspects of electromagnetic (EM) signal propagation on planar microstrip lines with single and multilayer dielectric substrates have been studied in [1][2][3][4][5][6]. Certain issues of EM coupling and crosstalk have also been addressed in [6][7][8][9][10][11][12][13][14][15]. However, these studies [6][7][8][9][10][11][12][13][14][15] are based on quasistatic theory and the spectral domain approach and are limited to narrow frequency bands.…”

Analysis of Capasitively Coupled Microstrip-Ring Resonator Based on Spectral Domain Method

“…These functions are Maxwellian type functions defined in [20,22]. In the perturbed regions, however, pulse and PSW-S sub-sectional basis functions (g x m and g z m ), discussed in [23], are used to accommodate possible high variations in the current distributions and also to add flexibility to the structure configuration.…”