Plane wave transmission through a pair of capacitive gratings

Author

Kazantsev, Y.N. ; Mal´tsev, V.P. ; Shatrov, A.D.

Author_Institution

Inst. of Radio Eng. & Electron., Acad. of Sci., Moscow, Russia

Volume

147

Issue

6

fYear

2000

fDate

12/1/2000 12:00:00 AM

Firstpage

455

Lastpage

462

Abstract

A frequency-selective structure is investigated that represents a pair of gratings with narrow gaps in a thin conductive screen separated by a dielectric slab. In particular, the gratings may be closely spaced. The calculations show that the parasitic windows of the transparency may be shifted far from the operational frequency to the high frequency region, so that the ratio of the frequencies of the parasitic and operational windows of the transparency will exceed four. Expressions for the reflection and transmission coefficients are obtained. The results of calculations are compared with experimental data in the cases of both normal and oblique incidence

Keywords

capacitance; diffraction gratings; electromagnetic wave reflection; electromagnetic wave transmission; frequency selective surfaces; transparency; capacitive gratings; dielectric slab; experimental data; frequency-selective structure; high frequency region; normal incidence; oblique incidence; operational frequency; parasitic windows; plane wave transmission; reflection coefficient; thin conductive screen; transmission coefficient; transparency;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings

Publisher

iet

ISSN

1350-2417

Type

jour

DOI

10.1049/ip-map:20000798

Filename

909387