High attenuation broadband high speed RF shutter and method of m

Details High attenuation broadband high speed RF shutter and method of m High attenuation broadband high speed RF shutter and method of m

1989-01-03

1990-05-01

Gensler, Paul

Communications: directive radio wave systems and devices (e.g.,

Radar reflector

200181, 333105, 333262, 343841, H04B 138, H01P 110

Patent

active

049222538

ABSTRACT:
A radio frequency transmitting shutter operable at low power and high speed for use in the protection of a radar or electronic warfare array comprising a multiplicity of individual conductive beam members interconnected by electrostatic switches formed using high yield, common photolithographic methods is disclosed. Further, a photosensitive embodiment of this device which would allow activation of the shutter wherever the light falls upon the shutter during radar protection, is disclosed and claimed.

REFERENCES:
patent: 3539705 (1970-11-01), Nathanson et al.
patent: 3681134 (1972-08-01), Nathanson et al.
patent: 3796976 (1974-03-01), Heng et al.
patent: 4531126 (1985-07-01), Sadones
patent: 4684954 (1987-08-01), Sureau et al.
patent: 4814785 (1989-03-01), Wu
Petersen, Micromechanical Membrane Switches on Silicon, IBM J. Res. Develop., vol. 23, No. 4, Jul. 1979, pp. 376-385.

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