DocumentCode
900119
Title
Errors in near-field radioholography
Author
Morris, D.
Author_Institution
Raman Res. Inst., Bangalore
Volume
1
Issue
3
fYear
2007
fDate
6/1/2007 12:00:00 AM
Firstpage
586
Lastpage
591
Abstract
Formulae are given for the aperture plane phase errors which are incurred in near-field radioholography of reflector antennas when a simple Fresnel correction is used. Approximate analytic expressions are derived for circular data windows and antennas with parabolic illumination taper. Infocus and defocused cases are treated. Numerical simulations are used for estimating errors for square data windows
Keywords
Fresnel diffraction; antenna radiation patterns; aperture antennas; microwave holography; numerical analysis; reflector antennas; Fresnel correction; aperture plane phase error; circular data windows; near-field radioholography error; numerical simulation; parabolic illumination taper; reflector antennas; square data windows;
fLanguage
English
Journal_Title
Microwaves, Antennas & Propagation, IET
Publisher
iet
ISSN
1751-8725
Type
jour
DOI
10.1049/iet-map:20060061
Filename
4232449
Link To Document