Title :
Design and validation of a corrective subreflector for a 13.7 m antenna by microwave holography
Author :
Godwin, M.P. ; Henchy, F.B.N. ; Marshall, W.N.
fDate :
12/1/1985 12:00:00 AM
Abstract :
An RF holographic technique was deployed as a diagnostic aid to ascertain whether the frequency range of an existing antenna could be increased. A simple economical subreflector was subsequently built to compensate for the observed astigmatism. A further holographic test was carried out to align the new subreflector, and the new antenna now operates satisfactorily in the 11 GHz band in Cassegrain mode.
Keywords :
antenna reflectors; microwave holography; reflector antennas; 11 GHz band; 13.7 m; Cassegrain mode; RF holographic technique; antenna; astigmatism; corrective subreflector; diagnostic aid; frequency range; microwave holography;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings H
DOI :
10.1049/ip-h-2.1985.0079
