Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1970-05-26
1978-04-11
Hubler, Malcolm F.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
156308, C09J 502, H01Q 1700
Patent
active
040841618
ABSTRACT:
A foamed ceramic slab is bonded to a three-layer polyimide RAM substrate to roduce a radar absorber capable of at least 10db absorptivity of the range 3 to at least 10 GHZ and of withstanding very high temperatures, for example, 3,000.degree. F for 80 seconds or 900.degree. F for 10 minutes, while weighing only about 5.0 lbs/sq. ft.
REFERENCES:
patent: 2828484 (1958-03-01), Skellett
patent: 2920174 (1960-01-01), Haagensen
patent: 2956281 (1960-10-01), McMillan et al.
patent: 2992426 (1961-07-01), Borcherdt
patent: 2996709 (1961-08-01), Pratt
Manning William P.
Passiuk Walter T.
Deaton James T.
Edelberg Nathan
Gibson Robert P.
Hubler Malcolm F.
The United States of America as represented by the Secretary of
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