Investigations of high power problems in space shuttle antenna designs /
by W.C. Taylor and N.J. Alvares.
Description
- Language(s)
-
English
- Published
-
Washington, D.C. : National Aeronautics and Space Administration ; 1972.
- Summary
-
A 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.
- Note
-
"NASA CR-1922".
"February 1972."
Cover title.
Also 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.
- Physical Description
-
x, 85 p. :
ill. ;
27 cm.
Viewability
| Item Link |
Original Source |
|
Full view
|
University of Illinois at Urbana-Champaign
|