DocumentCode
1555641
Title
Compact duplexer-polarizer with semicircular waveguide [antenna feed]
Author
Behe, Roger ; Brachat, Patrice
Author_Institution
CNET, Cap d´´Ail, France
Volume
39
Issue
8
fYear
1991
fDate
8/1/1991 12:00:00 AM
Firstpage
1222
Lastpage
1224
Abstract
A light, compact, and high-performance duplexer-polarizer able to generate circularly polarized waves in a circular waveguide is discussed. Two prototypes were built. The standing-wave-ratio (SWR) and ellipticity performances are extremely good (less than 0.15 dB ellipticity over 15% bandwidth). The experimental development was facilitated by the computation of the dispersion curves and of the transverse field distribution associated with the two fundamental guided modes propagating in the different sections of a septum waveguide
Keywords
antenna feeders; circular waveguides; electromagnetic wave polarisation; waveguide components; antenna feed; circular waveguide; circularly polarized waves; dispersion curves; duplexer-polarizer; ellipticity; semicircular waveguide; septum waveguide; standing-wave-ratio; transverse field distribution; Antenna feeds; Circuits; Coaxial components; Eigenvalues and eigenfunctions; Optical polarization; Probes; Space technology; Tellurium; Transducers; Waveguide transitions;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/8.97358
Filename
97358
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