Title :
Spatial interpolation of the moment matrix in electromagnetic scattering and radiation problems
Author :
Nuteson, T.W. ; Naishadham, K. ; Mittra, R.
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
fDate :
June 28 1993-July 2 1993
Abstract :
In the analysis of antennas and scatterers of arbitrary shape by the method of moments (MoM), it is desirable to fill the matrix efficiently so that larger size problems can be solved. The authors describe an efficient MoM technique in which the matrix is filled by spatial interpolation of the matrix elements. Redundant calculations in the moment matrix are eliminated by utilizing various symmetries. The method is illustrated by application to planar problems including scattering from a square plate and radiation from a microstrip patch antenna. Computed results compare very well with those in the published literature. Using interpolation to fill the moment matrix has proven to be very efficient and produces negligible error in the computed current distribution.<>
Keywords :
Green´s function methods; antenna theory; boundary integral equations; current distribution; electromagnetic wave scattering; interpolation; method of moments; microstrip antennas; current distribution; electromagnetic scattering; method of moments; microstrip patch antenna; moment matrix filling; planar problems; spatial interpolation; square plate; symmetries; Conductors; Electromagnetic radiation; Electromagnetic scattering; Filling; Interpolation; Message-oriented middleware; Moment methods; Symmetric matrices; Testing; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385213
