Title :
A new algorithm of scattering from a finite periodic surface-conjugate gradient-circular convolution (CG-CC) method
Author :
Ya Ming Bo ; Wen Xun Zhang
Author_Institution :
Southeast Univ., Nanjing, China
Abstract :
A conjugate gradient-circular convolution (CG-CC) method of analyzing scattering from a finite surface with multiple periodicity is presented. This method may improve the accuracy and convergence of the solution by eliminating the aliasing effect introduced by the truncating procedure or periodical extension of the structure. Numerical results of the induced current distributions on 1-D and 2-D dipole arrays are presented and compared.<>
Keywords :
antenna arrays; antenna theory; conjugate gradient methods; current distribution; dipole antennas; electromagnetic wave scattering; integral equations; 1-D dipole arrays; 2-D dipole arrays; CG-CC method; EM scattering; conjugate gradient-circular convolution; electric field integral equation; finite periodic surface; frequency-selective surface; induced current distributions; multiple periodicity; multistage Toeplitz matrix; Character generation; Convolution; Equations; Fast Fourier transforms; Fourier transforms; Frequency selective surfaces; Iterative methods; Multidimensional systems; Scattering; Symmetric matrices;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1991. AP-S. Digest
Conference_Location :
London, Ontario, Canada
Print_ISBN :
0-7803-0144-7
DOI :
10.1109/APS.1991.174836
