DocumentCode
3412209
Title
Design of diffractive Cassegrain antenna at W band
Author
Meng, Hongfu ; Dou, Wenbin
Author_Institution
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
Volume
2
fYear
2011
fDate
24-27 Oct. 2011
Firstpage
1176
Lastpage
1178
Abstract
In this paper, a diffractive Cassegrain antenna for the monopulse radar at W band is designed. The main-reflector of the antenna is divided into several rings, and the surface in each ring is a part of a parabolic reflector with different focal length. The antenna has a gain of 37.6dB and the first sidelobe level is about -18.9dB. The thickness profile of the antenna is less than 10mm on the edge and 30mm in the center. Its radiation performances are comparable with the traditional Cassegrain antenna, but it has a much lower thickness profile.
Keywords
radar applications; reflector antennas; W band; diffractive Cassegrain antenna; focal length; gain 37.6 dB; monopulse radar; parabolic reflector; thickness profile; Antenna measurements; Antenna radiation patterns; Apertures; Microwave antennas; Millimeter wave radar; Radar antennas; Cassegrain Antenna; diffractive antenna; millimeter wave; monopulse radar;
fLanguage
English
Publisher
ieee
Conference_Titel
Radar (Radar), 2011 IEEE CIE International Conference on
Conference_Location
Chengdu
Print_ISBN
978-1-4244-8444-7
Type
conf
DOI
10.1109/CIE-Radar.2011.6159763
Filename
6159763
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