Title :
A new analysis of beam waveguide antennas considering the presence of the metal enclosure
Author :
Cha, Alan G. ; Imbriale, William A.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
9/1/1992 12:00:00 AM
Abstract :
Large beam-waveguide (BWG)-type ground station antennas are generally designed using analysis which ignores the presence of the metallic tube enclosing the BWG mirrors. The common analysis approaches are physical optics and Gaussian mode analyses. The weakness of these analyses is that they do not shed any light on the effect of the metal tube. A BWG analysis which considers the presence of the metal tube is presented. Numerical results of a two-mirror system using the new analysis are compared with experiments which have verified the analysis
Keywords :
antenna feeders; antenna radiation patterns; waveguide antennas; BWG; antenna feed; beam waveguide antennas; ground station antennas; metal enclosure; numerical analysis; two-mirror system; Costs; Frequency; Mirrors; NASA; Noise reduction; Optical distortion; Optical waveguides; Physical optics; Satellite ground stations; Working environment noise;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
