Scattering from structured slabs having two-dimensional periodicity

Author

Jorgenson, Roy E. ; Mittra, Raj

Author_Institution

Sandia Nat. Lab., Albuquerque, NM, USA

Volume

39

Issue

2

fYear

1991

fDate

2/1/1991 12:00:00 AM

Firstpage

151

Lastpage

157

Abstract

The problem of a plane wave incident on a structured slab is examined. To analyze the problem, an electric field integral equation (EFIE) is derived that has as its unknown the equivalent surface currents on the plates in the unit cell. The integral equation is discretized and solved approximately using the method of moments with subdomain basis and testing functions. The periodic Green´s function is efficiently calculated using the Poisson summation formula. The interaction of the structure with the surrounding environment is described in terms of a generalized scattering matrix. Results are presented showing the reflection coefficient as a function of frequency for arrays of zigzagging strips and honeycomb slabs

Keywords

Green´s function methods; electromagnetic wave scattering; integral equations; EFIE; Poisson summation formula; electric field integral equation; electromagnetic scattering; equivalent surface currents; generalized scattering matrix; honeycomb slabs; incident plane wave; method of moments; periodic Green´s function; reflection coefficient; structured slabs; subdomain basis functions; testing functions; two-dimensional periodicity; zigzagging strips; Aerospace materials; Building materials; Electromagnetic scattering; Frequency; Helium; Integral equations; Lattices; Periodic structures; Radar scattering; Slabs;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.68176

Filename

68176