Moment-method calculations on apertures using basis singular functions

Author

Andersson, Tommy

Author_Institution

Dept. of Electromagn. Theory, Lund Univ., Sweden

Volume

41

Issue

12

fYear

1993

fDate

12/1/1993 12:00:00 AM

Firstpage

1709

Lastpage

1716

Abstract

The transmission properties of perforated perfectly conducting screens are of practical interest. The treatment of nonperiodical structures by numerical techniques, such as the method of moments, is very computer intensive. In this paper it is shown that using basis functions that incorporate the edge as well as the corner singularities, the number of unknowns can be drastically reduced. The advantages and limitations of the method are discussed. Numerical results are presented illustrating the transmission properties of arrays of square and rectangular apertures

Keywords

electromagnetic field theory; electromagnetic wave transmission; functions; magnetic shielding; numerical analysis; basis functions; corner singularities; edge singularities; filtering; magnetic shielding; method of moments; nonperiodical structures; numerical techniques; perforated perfectly conducting screens; rectangular aperture arrays; square aperture arrays; transmission properties; Apertures; Convergence; Electromagnetic reflection; Electromagnetic scattering; Electromagnetic shielding; Filtering; Integral equations; Message-oriented middleware; Moment methods; Wire;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.273329

Filename

273329