Cryogenic devices
OwnerDaniel B. Laubacher, Zhi-Yuan Shen +2inventors
InventorsDaniel B. Laubacher, Zhi-Yuan Shen, Philip Shek Wah Pang, Alan Lauder
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Abstract
This invention relates generally to cryogenic devices and, more particularly, to cryogenic devices of very small size based on superconducting elements, low thermal transmission interconnects and low dissipated power semiconductor devices.
Claims21
A cryogenic device comprising a cryogenic electronic portion, a non-cryogenic electronic portion and an interconnect connecting the cryogenic electronic portions and the non-cryogenic electronic portions, wherein the interconnect comprises a thermal break between the cryogenic electronic portion and non-cryogenic electronic portions.
A cryogenic device comprising:
- (1) a cryogenic electronic portion contained within a vacuum dewar assembly, the cryogenic electronic portion having an input end and an output end;
- (2) an ambient to cryogenic input connector having an ambient end passing through the vacuum dewar assembly to a cryogenic end connected to the input end of the cryogenic electronic portion,
- (3) a cryogenic to ambient output connector having a cryogenic end connected to the output end of the cryogenic electronic portion, passing through the vacuum dewar assembly to an ambient end;
- and
- (4) a cryogenic source connected to the vacuum dewar assembly so as to be in intimate contact with the cryogenic electronic portion,
- wherein:
- (i) the cryogenic electronic portion comprises at least one of a high temperature superconductor filter element and a cryogenic active semiconductor circuit,
- (ii) an active semiconductor circuit, if present, produces a total dissipated power into the cryogenic electronic portion of less than about 850 mW, and
- (iii) the cryogenic device has a maximum cooler lift of less than about 3 W at 80 K at an ambient temperature of 20° C.
A method of tuning a cryogenic receiver comprising a high temperature superconducting filter element, said cryogenic receiver being programmed to operate at a specified operating frequency at a specified temperature, comprising the step of altering the specified operating temperature to induce a shift in the operating frequency of the cryogenic receiver.
Dependencies are inferred from the claim text.