Title :
Efficient Cartesian-Grid-Based Modeling of Rotationally Symmetric Bodies
Author :
Shyroki, Dzmitry M.
Author_Institution :
Tech. Univ. of Denmark, Lyngby
fDate :
6/1/2007 12:00:00 AM
Abstract :
Axially symmetric waveguides, resonators, and scatterers of arbitrary cross section and anisotropy in the cross section can be modeled rigorously with use of 2-D Cartesian-grid-based codes by means of mere redefinition of material permittivity and permeability profiles. The method is illustrated by the frequency-domain simulations of resonant modes in a circular-cylinder cavity with perfectly conducting walls, a shielded uniaxial anisotropic dielectric cylinder, and an open dielectric sphere for which, after proper implementation of the perfectly matched layer boundary conditions, the radiation quality factor Q is also determined.
Keywords :
Maxwell equations; anisotropic media; conducting bodies; dielectric bodies; dielectric waveguides; electromagnetic devices; finite difference methods; frequency-domain analysis; magnetic permeability; permittivity; resonators; Cartesian-grid-based modeling; Maxwell equation; axially symmetric waveguides; body-of-revolution technique; circular-cylinder cavity; frequency-domain simulations; material permittivity; open dielectric sphere; perfectly conducting walls; perfectly matched layer boundary conditions; permeability profiles; radiation quality factor; resonant modes; resonators; rotationally symmetric bodies; scatterers; shielded uniaxial anisotropic dielectric cylinder; Anisotropic magnetoresistance; Boundary conditions; Conducting materials; Dielectric materials; Perfectly matched layers; Permeability; Permittivity; Q factor; Resonance; Scattering; Body of revolution (BOR); Maxwell equations; coordinate transformation; finite-difference frequency-domain (FDFD) method; perfectly matched layer (PML);
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2007.897841
