DocumentCode
869561
Title
A simple circular-polarized antenna: circular waveguide horn coated with lossy magnetic material
Author
Lee, Choon S. ; Lee, Shung-wu ; Justice, D.W.
Author_Institution
Hughes Aircraft Co., Los Angeles, CA, USA
Volume
36
Issue
2
fYear
1988
fDate
2/1/1988 12:00:00 AM
Firstpage
297
Lastpage
300
Abstract
It is shown that a circular waveguide horn coated with a lossy material in its interior wall can be used as an alternative to a corrugated waveguide for radiating a circularly polarized (CP) field. To achieve good CP radiation, the diameter of the structure must be larger than the free-space wavelength, and the coating material must be sufficiently lossy and magnetic. The device is cheaper and lighter in weight than the corrugated one
Keywords
antenna feeders; antennas; circular waveguides; electromagnetic wave polarisation; magnetic leakage; waveguide theory; circular waveguide horn; circular-polarized antenna; coating material; lossy magnetic material; Antenna radiation patterns; Bandwidth; Boundary conditions; Coatings; Dielectrics; Electromagnetic waveguides; Horn antennas; Magnetic losses; Magnetic materials; Optical polarization;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/8.1107
Filename
1107
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