DocumentCode :
1044717
Title :
Experimental study of a diffraction reflector
Author :
Provencher, J.H.
Author_Institution :
U. S. Navy Electronics Lab., San Diego, CA, USA
Volume :
8
Issue :
3
fYear :
1960
fDate :
5/1/1960 12:00:00 AM
Firstpage :
331
Lastpage :
336
Abstract :
A microwave antenna has been designed and constructed on the principles of parageometric optics formulated by Toraldo di Francia and on principles similar to those of Fresnel rings and the diffraction grating. Its surfaces are all zones of cones and are simple to construct. The chosen design parameters were incorporated in two 
-band ( 
cm, 
cm) models. Experimental results show good agreement with theory. Scanning characteristics are superior to those of the paraboloidal or spherical reflector, and spherical aberration and coma are minimized, and the effects of astigmatism are minimized by using a "compromise focus."
-band ( cm, cm) models. Experimental results show good agreement with theory. Scanning characteristics are superior to those of the paraboloidal or spherical reflector, and spherical aberration and coma are minimized, and the effects of astigmatism are minimized by using a "compromise focus."Keywords :
Geometrical optics (GO); Reflector antennas; Diffraction gratings; Earth; Feeds; Geometrical optics; K-band; Microwave antennas; Optical design; Optical diffraction; Optical reflection; Vision defects;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IRE Transactions on
Publisher :
ieee
ISSN :
0096-1973
Type :
jour
DOI :
10.1109/TAP.1960.1144852
Filename :
1144852
Link To Document :
