00000000nam 2200000zi 4500
0019.954279
003CaOODSP
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008250820e199512  oncad    bt  f000|| eng d
040 |aCaOODSP|beng|erda|cCaOODSP
041 |aeng|beng|bfre
043 |an-cn---
0861 |aDR52-17/68-1995E-PDF
1001 |aMoffat, John W.,|d1932- |eauthor.
24510|aEvaluation of Rotman lenses for space-based radar / |cby J.W. Moffat.
264 1|aOttawa : |bDefence Research Establishment Ottawa, |cDecember 1995.
300 |a1 online resource (xv, 56 pages) : |billustrations, charts.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aDREO report ; |vno. 1271
500 |aDigitized edition from print [produced by Defence Research and Development Canada].
500 |a"PCN 041BD."
504 |aIncludes bibliographical references (pages 51-53).
520 |a"The Space-Based Radar (SBR) R&D Project at DREO has been investigating the feasibility of the application of a number of different technologies to space-based wide area surveillance using microwave radar. One of the technologies investigated was the Rotman lens implementation of a Fourier transform beam forming network. A number of Rotman lenses were designed and manufactured in stripline microwave structure under a development contract. The expected performance was not achieved. A study was initiated to investigate possible causes of this performance deficiency. This study was divided into two main thrusts. First the lenses were assessed physically using ultrasonic and X-ray technologies, with a confirmation of the results by the sectioning and subsequent microscopic examination of one of the lenses. Following that, some simple stripline structures were measured in a microwave lab in order to gain an understanding of the difficulties measuring the permittivity dielectric material within the structure. This report describes experiments performed and results obtained"--Abstract, page iii.
546 |aIncludes abstracts in English and French.
650 0|aBeamforming.
650 0|aSpace-based radar.
650 6|aFormation de faisceau.
650 6|aRadars spatiaux.
7102 |aDefence Research Establishment Ottawa, |eissuing body.
830#0|aDREO report ;|vno. 1271.|w(CaOODSP)9.941661
85640|qPDF|s3.90 MB|uhttps://publications.gc.ca/collections/collection_2025/rddc-drdc/DR52-17-68-1995-eng.pdf
986 |aPCN 041BD