DocumentCode
1023676
Title
Dielectric sheet radiators
Author
Butterfield, F.E.
Author_Institution
Motorola, Inc., Phoenix, AZ, USA
Volume
2
Issue
4
fYear
1954
fDate
10/1/1954 12:00:00 AM
Firstpage
152
Lastpage
158
Abstract
A class of electromagnetic radiators is described which employs the principle of waveguiding along a flat surface by means of dielectric coating. Radiation occurs as a result of nonuniformities in the guiding system. The efficiency of the feeding arrangements and diffraction over the edge of the flat surface are factors in the side-lobe level observed. A unit is described which has been used aboard missiles. A series of tests are reported which illustrate some of the characteristics of the radiators. Data for comparison with corrugated surface antennas is given. Problems for further investigation are listed. An experimental unit is described with a gain of 25 db and an efficiency compared to conventional aperture radiators of about 60 percent. This unit has linear dimensions comparable to a hem producing the same beamwidth.
Keywords
Corrugated antennas; Dielectric antennas; Missile antennas; Coatings; Corrugated surfaces; Dielectrics; Electromagnetic diffraction; Electromagnetic radiation; Electromagnetic scattering; Gain; Missiles; Surface waves; Testing;
fLanguage
English
Journal_Title
Antennas and Propagation, Transactions of the IRE Professional Group on
Publisher
ieee
ISSN
2168-0639
Type
jour
DOI
10.1109/T-AP.1954.27990
Filename
1142726
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