DocumentCode
1967606
Title
A New Tracking Modes Coupler using a Corrugated Feed for Satellite Communication Earth-Station Antenna
Author
Drabowitch, S.
Author_Institution
Division Radars de Surface, Thomson-CSF, 92 222 Bagneux, France
fYear
1976
fDate
14-17 Sept. 1976
Firstpage
165
Lastpage
168
Abstract
A corrugated tracking modes coupler operating with any linear or circular polarization is described. This device propagates without disturbance the received and transmitted HE11 communication modes, and selects as tracking modes, the TM01 and HE21 modes by use of their specific phase velocities which are equalized by the proper design of the corrugated guide geometry. The tracking modes are coupled by four arrays of transversal slots in four "collecting guides" having the same phase velocity. Experimental performances in the 10.95 - 14,5 GHz band are given. They show a very low parasitic coupling of the HE11 mode, no distortion of its primary radiation patterns and a good tracking sensitivity.
Keywords
Antenna feeds; Antennas and propagation; Geometry; Helium; Phased arrays; Polarization; Propagation constant; Radar tracking; Satellite antennas; Satellite communication;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 1976. 6th European
Conference_Location
Rome, Italy
Type
conf
DOI
10.1109/EUMA.1976.332266
Filename
4130932
Link To Document