Patent ID: 6688127
Filing Date: 2004-02-10
Classification: H01P

Abstract:
A cryogenic device comprising:(a) a cryogenic electronic portion contained within a vacuum dewar assembly, the cryogenic electronic portion having an input end and an output end; (b) an ambient to cryogenic input connector having an ambient end, and passing into the vacuum dewar assembly to a cryogenic end connected to the input end of the cryogenic electronic portion, (c) a cryogenic to ambient output connector having a cryogenic end connected to the output end of the cryogenic electronic portion, and passing out of the vacuum dewar assembly to an ambient end; and (d) a cryogenic source connected to the vacuum dewar assembly and in intimate contact with the cryogenic electronic portion, wherein: (e) the cryogenic electronic portion comprises at least one of a high temperature superconductor filter element and a cryogenic active semiconductor circuit, (f) an active semiconductor circuit, if present, produces a total dissipated power into the cryogenic electronic portion of less than about 850 mW, and (g) the cryogenic source has a maximum cooler lift of less than about 3 W at 80 K at an ambient temperature of 20Â° C.