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International Journal of Antennas and Propagation
Volume 2013 (2013), Article ID 767342, 12 pages
http://dx.doi.org/10.1155/2013/767342
Research Article

Design of Shaped Beam Planar Arrays of Waveguide Longitudinal Slots

Dipartimento di Ingegneria Elettrica ed Elettronica, Università di Cagliari, Piazza d'Armi, 09123 Cagliari, Italy

Received 26 October 2012; Revised 10 January 2013; Accepted 21 January 2013

Academic Editor: Sembiam R. Rengarajan

Copyright © 2013 Giovanni Andrea Casula et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The Elliott’s procedure for the design of a pencil beam waveguide longitudinal slot array has been generalized to encompass the design of shaped beam planar slot arrays. An extended set of design equations, taking into account in an operative way the feeding part of the array, has been devised. From this set of equations, a general and effective design procedure has been set up, shedding light on the constraints posed by a complex aperture distribution. The results of the proposed synthesis procedure have been validated through comparison with a commercial FEM software.