Title :
Acceleration of on-surface MEI method by new metrons and FMM for 2-D conducting scattering
Author :
Liu, Y.W. ; Zhao, Y.W. ; Mei, K.K.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China
fDate :
8/1/2000 12:00:00 AM
Abstract :
A new kind of metron is proposed and rapid integration provided by fast multipole methods (FMM) is implemented to dramatically reduce the CPU time of finding the MEI coefficients in the on-surface measured equation of invariance (OSMEI) method. The numerical example of the scattering of a large conducting elliptical cylinder shows that the computation speed is at least one order of magnitude faster than that of the original OSMEI, where sinusoidal metrons are used, and about 25% faster than that of the FMM, where the iteration method is used.
Keywords :
conducting bodies; electromagnetic wave scattering; integration; 2D conducting scattering; CPU time reduction; FMM; MEI coefficients; computation speed; conducting elliptical cylinder; fast multipole methods; integration; iteration method; on-surface MEI method acceleration; on-surface measured equation of invariance; sinusoidal metrons; sparse matrix; Acceleration; Councils; Engine cylinders; Equations; Extrapolation; Interpolation; Scattering; Sparse matrices; Time measurement; Two dimensional displays;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
