DocumentCode
1007372
Title
Axial astigmatic fields in the focal region
Author
Ruze, John
Author_Institution
Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, MA, USA
Volume
23
Issue
5
fYear
1975
fDate
9/1/1975 12:00:00 AM
Firstpage
734
Lastpage
735
Abstract
The axial field distribution near the focus of a collimating system subject to astigmatism is examined. It is shown that a doubly-peaked focusing response results and that the aperture efficiency is increased with a greater illumination taper. The results are applicable to a paraboloidal reflector with different foci in the two principal planes.
Keywords
Reflector antennas; Antennas and propagation; Costs; Current distribution; Digital filters; Electromagnetic radiation; Electrons; Finite impulse response filter; Interpolation; Low pass filters; Vision defects;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1975.1141141
Filename
1141141
Link To Document