This paper presents an approach to modeling of field penetration and gives contribution to understanding the real effects of the fields and the sensitivity of human model to electromagnetic radiation generated by mobile antenna. When a human body is exposed to the electromagnetic radiation, because human body contain 70% of liquid, and it contain more liquid near of head, heart, abdomen (near o...

Radiation from monopole antennas on spherical-lossy earth is analyzed by the finitedifference time-domain (FDTD) method in spherical coordinates. A novel generalized perfectly matched layer (PML) has been developed for the truncation of the lossy soil. For having an accurate modeling with less memory requirements, an efficient "non-uniform" mesh generation scheme is used. Also in each time step...

In this paper, a new algorithm for twodimensional (2-D) finite-difference time-domain (FDTD) method is presented. By this new method, the maximum time step size can be increased over the Courant-FriedrichLevy (CFL) condition restraint. This new algorithm is adapted from an Alternating-Direction Implicit FDTD (ADI-FDTD) method. However, unlike the ADI-FDTD algorithm, the alternation is performed...

We introduce a new configuration of optical NOR logic gateimplementedby using two symmetric circular shaped photonic crystal ring resonator made of dielectric Indium Phosphide rods in air substrate. The switching behavior of proposed optical gate was analyzed based on beam interference principle and perturbation theory. Numerical calculations were carried out by optiFDTD tool using a 2D FDTD do...

Normally in the finite difference time domain (FDTD) technique, stationaly objects are modeled in a time domain simulation as a field propagates around them, and possibly inside these objects. Tbis paper illustrates a method in which EM fields and a moving object can be modeled using the FDTD technique. By using a techniqne of dielectric approximation and intermediate step field movement, it is...

Edelvik, F. 2002. Hybrid Solvers for the Maxwell Equations in Time-Domain. Acta Univ. Ups. Uppsala Dissertations from the Faculty of Science and Technology 40. 164 pp. Uppsala. ISBN 91-554-5354-6. The most commonly used method for the time-domain Maxwell equations is the FiniteDifference Time-Domain method (FDTD). This is an explicit, second-order accurate method, which is used on a staggered C...

Traditional finite difference time domain (FDTD) is classic numerical method for solving wave propagation problems such as electromagnetic wave, seismic wave and acoustic wave. As for airborne GPR simulation, modeling space is so large that memory consuming is pretty huge; on the other hand, the area between source antenna and ground surface is homogenous medium – air, where analytic solution c...

This paper reports the theoretical and experimental investigations on the strain sensing effect of a two dimensions (2D) photonic crystal (PhC) nanocavity resonator. By using the finite element method (FEM) and finite difference time domain (FDTD) simulations, the strain sensitivity of a high quality factor PhC nanocavity was calculated. Linear relationships between the applied strain and the s...

In this paper, the anatomically realistic body model Zubal is exposed to a plane wave. A finite-difference time-domain (FDTD) method is used to obtain field data for specific-absorption-rate (SAR) computation. It is investigated how the FDTD resolution, power-loss computation method and positioning of the material voxels in the FDTD grid affect the SAR results. The results enable one to estimat...

In the paper, a novel three-port channel drop filter in two dimensional photonic crystals (2D PCs) with a wavelength-selective reflection micro-cavity is proposed. In the structure, two micro-cavities are used. One is used for a resonant tunneling-based channel drop filter. The other is used to realize wavelength-selective reflection feedback in the bus wave-guide, which consists of a point def...