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Tracking antenna arrays for near-millimeter wavesA two-dimensional monolithic array has been developed that gives the elevation and azimuth of point source targets. The array is an arrangement of rows and columns of antennas and bismuth bolometer detectors on a fused quartz substrate. Energy is focused onto the array through a lens placed on the back side of the substrate. At 1.38 mm with a 50 mm diameter objective lens, the array has demonstrated a positioning accuracy of 26 arcmin. In a differential mode this precision improves to 9 arcsec, limited by the mechanics of the rotating stage. This tracking could be automated to a fast two-step procedure where a source is first located to the nearest row and column, and then precisely located by scanning. With signal processing the array should be able to track multiple sources.
Document ID
19830053971
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Tong, P. P.
(California Inst. of Tech. Pasadena, CA, United States)
Neikirk, D. P.
(California Inst. of Tech. Pasadena, CA, United States)
Psaltis, D.
(California Inst. of Tech. Pasadena, CA, United States)
Rutledge, D. B.
(California Inst. of Tech. Pasadena, CA, United States)
Wagner, K.
(California Institute of Technology Pasadena, CA, United States)
Young, P. E.
(California, University Los Angeles, CA, United States)
Date Acquired
August 11, 2013
Publication Date
May 1, 1983
Publication Information
Publication: IEEE Transactions on Antennas and Propagation
Volume: AP-31
ISSN: 0018-926X
Subject Category
Communications And Radar
Accession Number
83A35189
Funding Number(s)
CONTRACT_GRANT: DOE TASK IIA
CONTRACT_GRANT: DE-AM03-76SF-00010
Distribution Limits
Public
Copyright
Other

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