Thermal control considerations in satellite antennas
Abstract
A generalized, dimensional thermal analysis of antenna reflectors, specifically of the type used on telecommunication and direct television satellites, is presented. An optimal thermal configuration (coatings, insulation, etc.) for a paraboloid antenna 1 m in diameter was calculated. The drawbacks of mathematical modeling insofar as temperature field determination is concerned are pointed out. Calculation predictions are compared with space simulation test results for the MAROTS satellite antenna. Structural analysis computer programs (NASTRAN; CALMAR; PROTERM) were used to determine thermoelastic deformation for the MAROTS configuration. Results show that while these programs give only a rough representation of the point by point temperature distribution, the interface between thermal calculations and structural calculations seems sufficient for design purposes.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 July 1980
 Bibcode:
 1980STIN...8117347F
 Keywords:

 Antenna Design;
 Satellite Antennas;
 Satellite Temperature;
 Temperature Control;
 Conductive Heat Transfer;
 Elastic Deformation;
 Heat Flux;
 Marots (Esa);
 Mathematical Models;
 Thermal Control Coatings;
 Thermal Insulation;
 Thermal Stresses;
 Communications and Radar