Investigations of high power problems in space shuttle antenna designs

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024 8 ⊔ ‡a19720009462
024 8 ⊔ ‡aN7217112
024 8 ⊔ ‡a72N17112
035 ⊔ ⊔ ‡a(MiU)011429463
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035 ⊔ ⊔ ‡a(OCoLC)68939440
040 ⊔ ⊔ ‡aFER ‡cFER ‡dMiU
049 ⊔ ⊔ ‡aUIUU
100 1 ⊔ ‡aTaylor, William C., ‡d1937-
245 1 0 ‡aInvestigations of high power problems in space shuttle antenna designs / ‡cby W.C. Taylor and N.J. Alvares.
260 ⊔ ⊔ ‡aWashington, D.C. : ‡bNational Aeronautics and Space Administration ; ‡aSpringfield, Va. : ‡bFor sale by the National Technical Information Service [distributor], ‡c1972.
300 ⊔ ⊔ ‡ax, 85 p. : ‡bill. ; ‡c27 cm.
490 ⊔ 0 ‡aNASA contractor report ; ‡vNASA CR-1922
500 ⊔ ⊔ ‡a"NASA CR-1922".
500 ⊔ ⊔ ‡a"February 1972."
500 ⊔ ⊔ ‡aCover title.
504 ⊔ ⊔ ‡aIncludes bibliographical references (p. 69)
520 ⊔ ⊔ ‡aA study program is discussed which includes a survey of industry and government laboratories and was undertaken to determine the state of the art in dealing with problems of high power levels in reentry antenna design. A laboratory program to develop techniques for testing dielectric materials for effects on RF transmission is also considered, with emphasis on high power applications in space and reentry flights. The study program resulted in a set of guidelines for avoiding breakdown in antenna design. A discussion of temperature effects on dielectric breakdown is also given. From the laboratory program, a description is presented of techniques for (1) heating with a carbon arc image furnace, (2) temperature measurement (using thermocouples and an infrared pyrometer), (3) mass spectrometric monitoring of outgassing, (4) testing for RF breakdown in both heated dielectrics and the dielectric/air and dielectric/plasma interfaces. Data and observations are reported from technique development using candidate shuttle materials falling into three categories: (1) lightweight refractory foams, (2) dense RF window materials, and (3) ablative materials.
530 ⊔ ⊔ ‡aAlso available online from the NASA Technical Reports Server (http://ntrs.nasa.gov/). Address as of 04/05/06: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720009462%5f1972009462.pdf.
536 ⊔ ⊔ ‡aPerformed by Stanford Research Institute, Menlo Park, Calif., for Langley Research Center ‡bNAS1-10068
538 ⊔ ⊔ ‡aMode of access: Internet.
650 ⊔ 7 ‡aTemperature measurement. ‡2nasat
650 ⊔ 7 ‡aSystem failures. ‡2nasat
650 ⊔ 7 ‡aSpace shuttles. ‡2nasat
650 ⊔ 7 ‡aRadio transmission. ‡2nasat
650 ⊔ 7 ‡aOutgassing. ‡2nasat
650 ⊔ 7 ‡aFoams. ‡2nasat
650 ⊔ 7 ‡aArc heating. ‡2nasat
650 ⊔ 7 ‡aAblative materials. ‡2nasat
650 ⊔ 7 ‡aReentry vehicles. ‡2nasat
650 ⊔ 7 ‡aDielectrics. ‡2nasat
650 ⊔ 7 ‡aAntenna design. ‡2nasat
700 1 ⊔ ‡aAlvares, N. J.
710 2 ⊔ ‡aLangley Research Center.
710 2 ⊔ ‡aStanford Research Institute.
CID ⊔ ⊔ ‡a011429463
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DAT 1 ⊔ ‡a20130821094120.0 ‡b2024-01-17T02:07:08Z
DAT 2 ⊔ ‡a2024-01-16T18:30:02Z
CAT ⊔ ⊔ ‡aSDR-MIU-UPD ‡dEX LIBRIS - ALEPH ‡lloader.pl-002-002
COM ⊔ ⊔ ‡d20120724 ‡mThis record was modified while in the University of Michigan Aleph system for one of the following reasons: to resolve an incorrect bibliographically determined rights status, to include a new OCLC number, or to otherwise address or update incorrect or incomplete metadata.
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