Title :
Null shift and beam squint in circularly polarized offset-reflector antenna
Author :
Luh, Howard H S ; Tsao, Alex C H
Author_Institution :
Ford Aerosp. and Commun. Corp., Palo Alto, CA, USA
fDate :
1/1/1986 12:00:00 AM
Abstract :
A formula for the null shift of the difference mode pattern of an offset-reflector antenna is derived. It is shown that this null shift and the beam squint of the sum mode pattern have different values. Such a phenomenon must be considered in the design of a two-channel tracking system.
Keywords :
Offset reflector antennas; Reflector antennas, offset; Antenna measurements; Apertures; Coordinate measuring machines; Difference equations; Erbium; Feeds; Geometry; Lighting; Polarization;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1986.1143724
