Guided waves along a metal grating on the surface of a grounded dielectric slab

Author

Bellamine, Fethi H. ; Kuester, Edward F.

Author_Institution

Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA

Volume

42

Issue

7

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

1190

Lastpage

1197

Abstract

The propagation of guided waves along a metal grating lying on a grounded dielectric substrate is studied. Hitherto, investigation of the properties of such waves has been restricted to directions of propagation perpendicular to or nearly parallel to the strips of grating. Averaged boundary conditions for the fields at the grating are used here to simplify the analysis, and are expected to yield accurate results for grating periods that are sufficiently small compared to a wavelength. Comparisons made with more exact computations in the literature are shown to be good. The results have potential application for microwave and millimeter wave waveguides, slotted microstrip antennas, and circuit elements

Keywords

boundary-value problems; dielectric-loaded waveguides; electromagnetic wave propagation; microstrip antennas; waveguide theory; boundary conditions; grating periods; grounded dielectric slab; guided wave propagation; metal grating; microwave waveguides; millimeter wave waveguides; slotted microstrip antennas; Boundary conditions; Dielectric substrates; Gratings; Microstrip antennas; Microwave antennas; Microwave circuits; Millimeter wave circuits; Slot antennas; Strips; Surface waves;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.299756

Filename

299756