Title :
Scattering of EM wave by a narrow gap in a grounded dielectric layer
Author :
Song, J. ; Nyquist, D.P. ; Chen, K.M. ; Rothwell, E.J.
Author_Institution :
Dept. of Electr. Eng., Michigan State Univ., East Lansing, MI, USA
fDate :
June 28 1993-July 2 1993
Abstract :
The authors approximate the total electric field in the discontinuity region with the electric field in a zero-width gap, and then calculate the first- and the second order iterative approximations to that field, as well as the far zone field, for a narrow gap. The approximate results agree very well with the MoM (method of moments) EFIE (electric field integral equation) solutions. The first-order approximation to the far field is expressed in a closed form in terms of elementary functions, and the second-order is expressed as an integral representation. However, the MoM requires calculation of the matrix elements by integration followed by solution of linear equations. Thus, the approximate method is much more computationally efficient than the MoM.<>
Keywords :
computational complexity; electromagnetic wave scattering; integral equations; iterative methods; computational efficiency; discontinuity region; electric field integral equation; elementary functions; grounded dielectric layer; iterative approximations; narrow gap; Coatings; Conductors; Dielectrics; Electromagnetic scattering; Frequency; Green´s function methods; Integral equations; Message-oriented middleware; Moment methods; Polarization;
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.1993.385203
