Stock material or miscellaneous articles – All metal or with adjacent metals – Honeycomb – or with grain orientation or elongated elements...
Patent
1986-01-17
1987-08-11
Thomas, Alexander S.
Stock material or miscellaneous articles
All metal or with adjacent metals
Honeycomb, or with grain orientation or elongated elements...
428595, 428624, 428634, 428651, 428113, 428114, 428418, 343 18B, 343912, H01Q 1514, B32B 512, B32B 1508, B32B 1504
Patent
active
046861505
ABSTRACT:
An antenna reflector comprising a face skin of graphite fiber reinforced epoxy (GFRE) material is coated with a layer of chromium. The chromium is then coated with aluminum and a protective coating of silicon dioxide is then deposited over the aluminum. The chromium has a thickness sufficiently thin to provide good coverage of the pores of the GFRE material and to minimize distortion causing poor bond due to differences in the coefficient of thermal expansion of the different materials in the presence of temperature cycles. The aluminum is sufficiently thick to provide good reflecting characteristics to minimize the polarizing effects of the graphite face skins.
REFERENCES:
patent: 3716869 (1973-02-01), Gould, Jr. et al.
patent: 3916418 (1975-10-01), Erdmann et al.
patent: 4115177 (1978-09-01), Nelson
patent: 4448855 (1984-05-01), Senaha et al.
"Radio Frequency Components of Carbon Fiber Reinforced Plastic for Satellite Payloads," Frequenz, 35 (1981), 6, pp. 155-162 (with translation).
Gounder Raj N.
Talley Eric
Berard Jr. Clement A.
RCA Corporation
Thomas Alexander S.
Troike Robert L.
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