NDLI: Performance of a protruding-dielectric waveguide element in a phased array

Content Provider	IEEE Xplore Digital Library
Author	Lewis, L. Hessel, A. Knittel, G.
Copyright Year	1963
Abstract	A solution for the active array reflection coefficient in a two-dimensional array of parallel-plate-guide fed protruding-dielectric elements is presented. Analysis for this class of elements is not available in the literature. Element pattern nulls are found as in the case of dielectric-slab-covered arrays. The resonance mechanisms are also shown to be similar. Bandwidth properties of this array are briefly considered. A good agreement with experiments on two small arrays is found. Departures from infinite array theory, which take the form of a ripple on the flat portion of the element patterns and dips beyond the grating lobe angle, are shown to result from the finiteness of the arrays. These edge effects may be interpreted as arising from the interference between the "space wave," i.e., the infinite array element pattern and the fields radiated by the sources induced at the array edges by a wave traveling along the array face.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	712
Ending Page	722
Page Count	11
File Size	1259909
File Format	PDF
ISSN	0018926X
Volume Number	20
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1972-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phased arrays Dielectrics Reflection Resonance Planar waveguides Frequency Bandwidth Gratings Interference
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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