DocumentCode
1020342
Title
Axial cross polarization in reflector antennas with surface imperfections
Author
Ghobrial, S.I.
Author_Institution
University of Khartoum, Khartoum, Sudan
Volume
28
Issue
5
fYear
1980
fDate
9/1/1980 12:00:00 AM
Firstpage
610
Lastpage
616
Abstract
Expressions for the probability density function and mean of boresight cross polarization field intensity in terms of the rms surface error 
are derived. It is shown that for small errors the mean on-axis cross polarization field intensity is directly proportional to the rms surface error. For relatively large errors ( 
) forward cross polarization is proportional to the square root of ( 
) where 
is the rms phase error. It is also shown that forward cross polarization is proportional to the correlation diameter and is a function of the polarization efficiency. Experimental measurements are revealed and results are compared with theoretical findings.
are derived. It is shown that for small errors the mean on-axis cross polarization field intensity is directly proportional to the rms surface error. For relatively large errors ( ) forward cross polarization is proportional to the square root of ( ) where is the rms phase error. It is also shown that forward cross polarization is proportional to the correlation diameter and is a function of the polarization efficiency. Experimental measurements are revealed and results are compared with theoretical findings.Keywords
Antenna mechanical factors; Reflector antennas; Antenna measurements; Feeds; Gaussian distribution; Interference cancellation; Periodic structures; Polarization; Probability density function; Reflector antennas; Voltage;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1980.1142397
Filename
1142397
Link To Document