Microwave frequency selective surface having fibrous ceramic bod

Details Microwave frequency selective surface having fibrous ceramic bod Microwave frequency selective surface having fibrous ceramic bod

1986-10-07

1988-05-10

Nussbaum, Marvin L.

Communications: radio wave antennas

Antennas

Antenna components

333202, 333245, 343909, H01Q 1514, H01Q 1516

Patent

active

047439190

ABSTRACT:
A frequency selective surface having a fibrous ceramic material body and a metallic grid on a reflecting face thereof. The body is formed by bonding a mass of silicon dioxide fibers together at their intersection points, as with a fusing agent such as boron nitride in a sintering process, resulting in an array of fibers with cellular porosity intentionally distributed through the body to reduce its density. Other types of ceramic fibers can be used either alone or in combination with the silicon dioxide fibers. The grid is attached to the reflecting surface or deposited thereon. The frequency selective surface finds particular utility in satellite microwave communications satellites.

REFERENCES:
patent: 4652891 (1987-03-01), Bossuet et al.
patent: 4656487 (1987-04-01), Sureau et al.

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