A planar cavity based antenna by leaky parallel-plate wave guiding and practical surface-wave launching

Symon Podilchak, Al P. Freundorfer, Yahia M. M. Antar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

A dual-layer antenna that utilizes bound surface waves for leaky wave excitation is presented for microwave and millimeter-wave applications. Specifically, by placing a superstrate dielectric layer and ground plane on top of a base grounded dielectric slab a resonant cavity can be realized defining a parallel-plate guiding structure. Antenna leakage can be achieved by an annular 'bull-eye' grating of slots etched in the top ground plane for two-side beam scanning. In addition, a single pencil beam at broadside can be observed over a large radiating bandwidth (21.9 GHz to 23.9 GHz) with measured antenna gain values > 12:6 dBi from 22.3 GHz to 23.7 GHz. Essentially the bidirectional field distribution on the aperture is excited by a non-directive surface-wave launcher (SWL) source embedded in the bottom ground plane. This dual-layer structure and printed SWL feed may be useful for new parallel-plate wave guide configurations and other planar leaky-wave antennas.

Original languageEnglish
Title of host publication2010 IEEE Antennas and Propagation Society International Symposium
Place of PublicationNew York
PublisherIEEE
Number of pages4
ISBN (Print)978-1-4244-4968-2
DOIs
Publication statusPublished - 2010
EventIEEE International Symposium Antennas and Propagation/CNC-USNC/URSI Radio Science Meeting - Toronto
Duration: 11 Jul 201017 Jul 2010

Publication series

NameIEEE Antennas and Propagation Society International Symposium
PublisherIEEE
ISSN (Print)1522-3965

Conference

ConferenceIEEE International Symposium Antennas and Propagation/CNC-USNC/URSI Radio Science Meeting
CityToronto
Period11/07/1017/07/10

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