DocumentCode
1214237
Title
Offset Fresnel lens antenna
Author
Guo, Y.J. ; Sassi, I.H. ; Barton, S.K.
Author_Institution
Dept. of Electr. & Electron. Eng., Bradford Univ., UK
Volume
141
Issue
6
fYear
1994
fDate
12/1/1994 12:00:00 AM
Firstpage
517
Lastpage
522
Abstract
An analysis of the offset Fresnel lens antenna is presented using the vectorial Kirchhoff diffraction theory. Equations for predicting the copolarised and crosspolarised radiation patterns are given. Two approaches to evaluating the far-field integration are introduced. Antenna performance such as the sidelobe and the cross-polarisation levels is investigated. An experimental offset Fresnel lens is reported. Measured results agree well with the theoretical prediction
Keywords
Fresnel diffraction; antenna radiation patterns; antenna theory; lens antennas; copolarised radiation patterns; cross-polarisation levels; crosspolarised radiation patterns; far-field integration; offset Fresnel lens antenna; sidelobe levels; vectorial Kirchhoff diffraction theory;
fLanguage
English
Journal_Title
Microwaves, Antennas and Propagation, IEE Proceedings
Publisher
iet
ISSN
1350-2417
Type
jour
DOI
10.1049/ip-map:19941310
Filename
340209
Link To Document