Cryogenic Products


QCY Cryogenic Circulator

QuinStar’s QCY series Cryogenic Circulators and QCI series Cryogenic Isolators are custom-designed field-displacement devices with exceptional broadband performance. These are often used in conjunction with QuinStar’s series QCA Cryogenic Amplifiers and Systems. These products have internal magnetic shielding. However, an external magnetic shield is optionally available to augment the standard internal shielding to preserve the electrical characteristics while operating in a stronger magnetic field. When connected with cryogenic amplifiers, the DC bias to the amplifier may be provided using the termination of the isolator. Consult QuinStar if planning to use this option.

Typical applications for these devices include radio astronomy, satellite earth stations, radiometers and electron spin resonance measurement systems.

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