Thermal Design of a High-Power C-Band Phased Array With Integral MMIC Amplifiers 941552
The thermal design of a high-power C-band phased array with integral solid-state amplifiers, and its integration into a three-axis-stabilized spacecraft, are discussed. A thermal design has been developed employing fixed-conductance heat pipes and an embedded heat pipe radiator panel. The design tradeoffs and problems encountered in removing 2,000 W from a 1-m-diameter array are described, and possible solutions are presented. The highly concentrated heat source associated with solid-state amplifiers has emphasized the importance of minimizing MMIC chip internal thermal resistance in terms of the overall thermal control subsystem weight. Thermal test verification issues and concerns with 1-g operation in integrated spacecraft testing are also addressed.
Citation: Kelly, W., Albright, G., Yogev, I., and Zaharovits, M., "Thermal Design of a High-Power C-Band Phased Array With Integral MMIC Amplifiers," SAE Technical Paper 941552, 1994, https://doi.org/10.4271/941552. Download Citation
Author(s):
W. H. Kelly, G. Albright, I. Yogev, M. Zaharovits
Affiliated:
COMSAT Laboratories
Pages: 10
Event:
International Conference On Environmental Systems
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Thermal testing
Amplifiers
Spacecraft
Radiators
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