Title :
Electromagnetic scattering from a chiral cylinder-general case
Author :
Chen, ZhiNing ; Hong, Wei ; Zhang, Wenxun
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
fDate :
7/1/1996 12:00:00 AM
Abstract :
A generalized finite-difference (FD) scheme combined with the measured equation of invariance (MEI) is presented for the analysis of electromagnetic scattering from an inhomogeneous and lossy chiral cylinder with electrically large, arbitrarily shaped cross section. A new FD mesh in both chiral and achiral regions is formed, and the FD equations in a chiral medium are derived; then a large sparse matrix is formulated. The numerical results of bistatic scattering width (two-dimensional radar cross section) are given for the chiral cylinders of rectangular, elliptical, and complex cross section, respectively. Some results are compared with available data
Keywords :
chirality; electromagnetic wave polarisation; electromagnetic wave scattering; finite difference methods; matrix algebra; radar cross-sections; 2D RCS; EM wave polarisation; FD equations; FD mesh; achiral regions; bistatic scattering width; chiral medium; chiral regions; complex cross section; electrically large cross section; electromagnetic scattering; elliptical cross section; generalized finite-difference method; inhomogeneous chiral cylinder; lossy chiral cylinder; measured equation of invariance; rectangular cross section; sparse matrix; two-dimensional radar cross section; Electric variables measurement; Electromagnetic analysis; Electromagnetic measurements; Electromagnetic scattering; Equations; Finite difference methods; Loss measurement; Radar scattering; Shape measurement; Sparse matrices;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
