Communications: directive radio wave systems and devices (e.g. – Radar ew – Ecm
Patent
1986-05-22
1988-05-10
Tubbesing, T. H.
Communications: directive radio wave systems and devices (e.g.,
Radar ew
Ecm
342351, 250504R, G01S 738, F41H 300, F41J 913
Patent
active
047439041
ABSTRACT:
A radiometric countermeasures system installable on a military tank to det a passive millimeter wave sensor in a guidance system on an enemy missile. The system comprises an oscillator source of mm waves; a variable attenuator connected to the oscillator to adjust the power level of the oscillator output signal; a circular polarizer connected to the attenuator; an antenna connected to the polarizer to broadcast mm wave radiation to the ambient atmosphere in which the military tank is located; and means for adjusting the attenuation of the attenuator such that total mm wave emission from the tank and from the antenna is substantially equal to the naturally-occurring mm wave radiation emitted by the background scenery in the vicinity of the tank.
REFERENCES:
patent: 3921169 (1975-11-01), Lazarchik et al.
Foster Marcus L.
Morton Thomas P.
Barron Jr. Gilberto
McRae John E.
Taucher Peter A.
The United States of America as represented by the Secretary of
Tubbesing T. H.
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