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Efficient Cartesian-Grid-Based Modeling of Rotationally Symmetric Bodies

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1 Author(s)
Shyroki, D.M. ; Tech. Univ. of Denmark, Lyngby

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.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:55 ,  Issue: 6 )