NDLI: A printed radial configuration of width-modulated strip-lines for controlled guided-wave radiation

Content Provider	IEEE Xplore Digital Library
Author	Podilchak, S.K. Matekovits, L. Freundorfer, A.P. Antar, Y.M.M. Orefice, M.
Copyright Year	2012
Description	Author affiliation: Department of Electrical and Computer Engineering, Queen's University at Kingston 19 Union Street, Walter Light Hall, Kingston, ON, K7L 3N6, Canada (Freundorfer, A.P.) \|\| Dipertimento di Elettronica e Telecomunicazioni, Politecnico di Torino, C.so Duca degli Abruzzi, 24, 10129 Torino, Italy (Matekovits, L.; Orefice, M.) \|\| Department of Electrical and Computer Engineering, Royal Military College of Canada 13 General Crerar Crescent, Kingston, ON, K7K 7B4, Canada (Podilchak, S.K.; Antar, Y.M.M.)
Abstract	A new planar leaky-wave antenna (LWA) design that utilizes surface waves (SWs) for leaky wave excitation is presented. Specifically, a directive surface-wave launcher source is employed as the antenna feed generating cylindrical SW field distributions on a grounded dielectric slab. By the addition of a radial configuration of width-modulated printed strips along the azimuth, SW power can be gradually transformed into radiative power. Measured gain values are greater than 10 dBi with the first beam maximum observed at 18.7 GHz in the backward direction 38° from broadside. Frequency beam scanning is also realized over a 4.5 GHz radiating bandwidth from 17.7 to 22.2 GHz. Simulations and measurements are in agreement and results suggest that this LWA structure can offer continuous one-sided beam scanning through broadside from backfire to forward-fire. In addition, the presented radial configuration of width-modulated striplines may also be useful for new guidance structures, printed circuits, and other novel LWA designs operating at microwave and millimeter-wave frequencies.
Starting Page	2911
Ending Page	2913
File Size	450074
Page Count	3
File Format	PDF
ISBN	9781457709180
e-ISBN	9781457709203
e-ISBN	9781457709197
DOI	10.1109/EuCAP.2012.6206499
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-03-26
Publisher Place	Czech Republic
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Antenna measurements Surface impedance Surface waves Stripline Apertures Directive antennas Frequency measurement
Content Type	Text
Resource Type	Article

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