Antenna window cover

Details Antenna window cover Antenna window cover

1989-07-13

1990-04-10

Hille, Rolf

Communications: radio wave antennas

Antennas

With housing or protective covering

428113, H01Q 142, B32B 512

Patent

active

049164619

ABSTRACT:
A cover for an elongated antenna window of a nose cone of a reentry type missile includes a four directional composite material. A respective portion of a plurality of fibers are disposed in each of the four directions. The directions are oriented so that the fibers provide increased resistance to expected aerodynamic pressure-induced shear forces, especially during reentry, in the plane of the longitudinal axis of the window. The fibers comprise a refractory ceramic such as silica, boron nitride, alumina, aluminum nitride or a combination thereof having a filler material including a refractory ceramic disposed in the interstices between the fibers.

REFERENCES:
patent: 4121002 (1978-10-01), Baldwin
patent: 4400421 (1983-08-01), Stover
patent: 4721645 (1988-01-01), Brazel
patent: 4751135 (1988-06-01), Fenton
Improved Boron Nitride-Boron Nitride Composite Material (N. D. Potter & T. M. Place)-Dec. 10, 1979.

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