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Browse Journals & Magazines > Antennas and Propagation, IRE ...> Volume:5 Issue:1 Help

A Luneberg lens scanning system

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2 Author(s)
Hollis, J. ; Georgia Inst. Tech., Atlanta, GA, USA ; Long, M.

A 16,000-mc scanner is described which scans a40degazimuth sector alternately with each of two beams at a rate of 17 scans per beam per second. The beams have half-power vertical and horizontal beamwidths of0.76degand1.06degrespectively and are separated vertically by an angle of1.85deg. Horizontal collimation of each beam is achieved by a geodesic analog of the two-dimensional Luneberg lens. The lenses feed a section of a semiparabolic cylinder for effecting vertical collimation. Feeding the lenses is a switching system, consisting of two four-way turnstile waveguide switches and a waveguide chopper switch, which gives a scan-time dead-time ratio of 8:1.

Published in:
Antennas and Propagation, IRE Transactions on  (Volume:5 ,  Issue: 1 )

Date of Publication: January 1957

Page(s):
21 - 25
ISSN :
0096-1973
Digital Object Identifier :
10.1109/TAP.1957.1144471
Product Type:
Journals & Magazines
Date of Current Version :
06 January 2003
Issue Date :
January 1957

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