A detailed analysis and design of thin planar absorbing structure using Jerusalem cross slot (JCS) is presented in this paper. Based on uniplanar compact high-impedance surface characteristics, the resistance loss material layer can be directly attached to the surface of JCS structure, thus absorbing electromagnetic waves effectively. The improved design is characterized by its wider bandwidth ...

A perfectly matched layer (PML) is combined with an absorbing boundary condition (ABC) for mesh truncation in the finite element solution of electromagnetic scattering problems. It is shown by one-, two-, and three-dimensional examples, that the combined PML and ABC has less undesired reflection than the PML or ABC alone.

Electromagnetic field is simulated in time domain by mapping Maxwell's equations onto threedimensional cellular neural networks. Components of the field vectors are associated with interleaved grids, and different templates are used for each component and for each medium present in the mesh. At the network boundary, suitable templates are used to simulate perfectly absorbing planes.

We make a generalization of the integral method in the electromagnetic theory of gratings to study diffraction by echelles covered with dielectric lossless or absorbing layers. Numerical examples are given that show that, as in the resonance domain, the diffraction efficiency is more complicated than being a simple product of lossless diffraction efficiency curves and plane surface reflectivity.

The electromagnetic and microwave absorbing properties of nickel ferrite nanocrystals were investigated for the first time. There were two frequencies corresponding to the maximum reflection loss in a wide thickness range from 3.0 to 5.0 mm, which may be bought by the nanosize effect and the good crystallization of the nanocrystals.

Mn1-xZnxFe2O4 (0 ≤ x 0.65) nanoferrite particles were used as filler in a silicone polymer matrix order to obtain composite material with the purpose of absorbing electromagnetic radiation. The was characterized by X-ray diffraction, transmission electron microscopy and force modulation (FMM) properties means network impedance analyzers. It observed that higher concentrations Znx (x = 0.5 prese...

In this paper, we give a review of the tensor method for treating the propagation of scalar and electromagnetic Gaussian Schell-model (GSM) beams. Partially coherent complex curvature tensor is introduced to describe a scalar astigmatic partially coherent GSM beam with twisted phase (i.e., twisted anisotropic GSM beam). A tensor ABCD law for treating the propagation of scalar twisted anisotropi...

Title of Dissertation: DEVELOPING HIGHLY ACCURATE AND STABLE OPEN-REGION ELECTROMAGNETIC SIMULATIONS Xin Wu, Doctor of Philosophy, 2003 Dissertation directed by: Assistant Professor Omar M. Ramahi Department of Mechanical Engineering, and Department of Electrical and Computer Engineering In open-region electromagnetic simulations, the computational domain has to be truncated by an absorbing bou...