Title :
A frequency-domain differential equation formulation for electromagnetic scattering from inhomogeneous cylinders
Author :
Peterson, Andrew F. ; Castillo, Steven P.
Author_Institution :
Electromagn. Commun. Lab., Illinois Univ., Urbana, IL, USA
fDate :
5/1/1989 12:00:00 AM
Abstract :
A procedure is described for calculating scattering cross-section data based on the numerical solution of differential equations in the frequency domain. The scatterers considered are two-dimensional and consist of lossy, inhomogeneous dielectric, magnetic, and perfectly conducting material. The appropriate wave equation is combined with an approximate local absorbing boundary condition and discretized with the finite-element method. Results for conducting and dielectric scatterers are presented to illustrate the accuracy and generality of the approach
Keywords :
differential equations; electromagnetic wave scattering; frequency-domain analysis; radar cross-sections; dielectric material; electromagnetic scattering; finite element method; frequency-domain differential equation; inhomogeneous cylinders; local absorbing boundary condition; magnetic material; numerical solution; perfectly conducting material; scattering cross-section data; two dimensional scatterers; wave equation; Boundary conditions; Conducting materials; Dielectric losses; Differential equations; Finite element methods; Frequency domain analysis; Magnetic domains; Magnetic losses; Partial differential equations; Scattering;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
