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

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 conditio...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 1994-07, Vol.42 (7), p.1190-1197
Main Authors: Bellamine, F.H., Kuester, E.F.
Format: Article
Language:English
Subjects:
Applied sciences
Boundary conditions
Circuit properties
Dielectric substrates
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Gratings
Microstrip antennas
Microwave antennas
Microwave circuits
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Millimeter wave circuits
Slot antennas
Strips
Surface waves
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Summary: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.< >
ISSN:0018-9480
1557-9670
DOI:10.1109/22.299756