Modulators – Phase modulator
Patent
1990-02-05
1990-10-30
Mis, David
Modulators
Phase modulator
333157, 333248, H03C 300, H03C 336, H01P 118, H01P 900
Patent
active
049671677
ABSTRACT:
A microwave transmission line is provided including a class of dielectric terials known as relaxor dielectrics having very high dielectric constants of greater than 1000, low dielectric loss and large variations of the real part of the dielectric constant with varying temperature. The phase of a microwave signal passed through such a transmission line is modulated by subjecting the transmission line to light that is absorbed in the dielectric layer causing a variation in the dielectric constant and a change in the velocity of the continuous microwave signal passing through the transmission line.
REFERENCES:
patent: 4263570 (1981-04-01), De Fonzo et al.
patent: 4506234 (1985-03-01), Vittoria
patent: 4675624 (1987-06-01), Rosen et al.
Gordon Roy E.
Mis David
The United States of America as represented by the Secretary of
Zelenka Michael
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