DocumentCode
2777194
Title
A limited electronically scanned Cassegrain antenna at Q-band
Author
Wokurka, J.
Author_Institution
Rockwell International, Seal Beach, CA, USA
Volume
22
fYear
1984
fDate
25-29 June 1984
Firstpage
941
Lastpage
944
Abstract
A unique limited scan satellite antenna at Q-band (44GHz) is described. The configuration presented is a conventional Cassegrain reflector systefme d by an electronically scanned phased array with a dielectric "field lens" between the array and the subreflector. The purpose of this field lens is to reduce the scan loss of the single scanned beam as compared with other limited scan configurations. A mall 18 inch diameter proof-of-concept (PoC) model was designed, built and tested. The measured performance of the model agreed quite well with computer calculated patterns and it is therefore felt that calculated predictions of a full scale model would also be accurate.
Keywords
Antenna arrays; Antenna measurements; Apertures; Brain modeling; Diffraction; Gain measurement; Lenses; Optical design; Phased arrays; System testing;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium, 1984
Conference_Location
Boston, MA, USA
Type
conf
DOI
10.1109/APS.1984.1149214
Filename
1149214
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