A full-wave analysis of the scattering parameters of a straight-to-bent microstrip line coupling is performed using a FEM technique. The numerical results, showing the influence played by the geometrical parameters of the structure on the electromagnetic coupling, are then employed to derive an equivalent circuit useful to be employed in CAD tools. A third order polynomial approximant useful to...

Via structures in multi-layer printed circuit boards (PCBs) and packages are studied using an equivalent transmission line model. Thus, transmission line theories, such as characteristic impedance and propagation constant, can be used to characterize the performance of via structures in a signal path. The closed-form expressions of R, L, G, C parameters of the equivalent transmission line model...

In this paperwe use equivalent circuits to analyze thewavelengths in a Fast and Slow wave Waffle-iron Ridge Guide (FS-WRG). An equivalent circuit for the transverse direction is employed and the transverse resonance method is used to determine the fast wave wavelength. Another equivalent circuit, for the inserted series reactance in the waveguide, is employed for the fast and slow wave waveleng...

The need for energy storage devices especially in renewable applications has increased the use of supercapacitors. Accordingly, several supercapacitor models have been proposed previous researches. Nevertheless, most them require an intensive test to obtain model parameters. These may not be suitable initial simulation study, where a simple based on datasheet is required evaluate system perform...

Abstract Capacitive extracellular stimulation is a common method in implanted electrodes. The basis for investigating the transmission of stimuli from an electrode to adhered cells are vitro experiments using calcium imaging or patch clamp measurements. Computational spatial models used simulate mechanism signal at cell-electrode interface but require high computing power. In this work, Stern m...

This paper presents an approach to calculate the equivalent stray capacitance (SC) of n-turn of the helical flux compression generator (HFCG) coil with multi layer conductor wire filaments (MLCWF) in the form of rectangular cross-section. This approach is based on vespiary regular hexagonal (VRH) model. In this method, wire filaments of the generator coil are separated into many very small simi...