Planar antennas for far-field beam steering at end-fire using directive surface-wave launchers

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

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

Abstract

Planar antennas that achieve end-fire radiation by surface-wave (SW) edge diffraction are investigated. Specifically, Yagi-Uda like directive surface-wave launchers (SWLs) are utilized as the surface-wave antenna (SWA) feed, exciting cylindrical SWs on a grounded dielectric slab (GDS). With the design of a recessed ground plane, suitable conditions are achieved for far-field radiation at end-fire. In addition, a novel SWA offering end-fire beam steering is also presented by using a two element array of SWLs. Measured results suggest that the radiated beam pattern can be steered by 8 degrees from phi = -4 degrees to phi = +4 degrees in the far-field. In addition, highly directive beam patterns are observed from 18.5 - 22.7 GHz suggesting a relatively large radiating bandwidth. To the authors knowledge this is the first time such planar SWAs have been fabricated and measured.
Original languageEnglish
Title of host publication13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting
Place of PublicationUnited States
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages245-248
Number of pages4
ISBN (Print)978-1-4244-2979-0
DOIs
Publication statusPublished - 2009

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