FDTD Formulations for Scattering from Three Dimensional Chiral Objects
Abstract
Two finite difference time-domain (FDTD) scattered-field formulations for chiral objects are developed and presented in this paper. The first formulation provides single frequency results, while the second formulation provides multi frequency results from one FDTD simulation. Both formulations are developed for three dimensional electromagnetic applications. Numerical results from the single frequency formulation is presented for the scattering from a chiral sphere. In the multi-frequency formulation, the evaluation of both the electric and magnetic field values at every halftime step, unlike the conventional leap-frog algorithm, is needed to minimize the memory size required to store past values of the field components. Results of this formulation are presented for the co-polarization and cross- polarization of the reflected and transmitted waves from a chiral slab due to normal incidence of a plane wave and for the scattered field from a chiral sphere. Validation is performed by comparing the results with those based on the exact solution.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 23, 2004
- Accession Number
- ADA438235
Entities
People
- Atef Z. Elsherbeni
- Ercument Arvas
- Veysel Demir
Organizations
- Syracuse University