Tunable high-q superconducting notch filter

Patent · Thu Nov 29 00:00:00 EST 1979

OSTI ID:6927539

Pang, C S; Falco, C M; Kampwirth, R T; Schuller, I K

A superconducting notch filter is made of three substrates disposed in a cryogenic environment. A superconducting material is disposed on one substrate in a pattern of a circle and an annular ring connected together. The second substrate has a corresponding pattern to form a parallel plate capacitor and the second substrate has the circle and annular ring connected by a superconducting spiral that forms an inductor. The third substrate has a superconducting spiral that is placed parallel to the first superconducting spiral to form a transformer. Relative motion of the first substrate with respect to the second is effected from outside the cryogenic environment to vary the capacitance and hence the frequency of the resonant circuit formed by the superconducting devices.

• DOE Contract Number: W-31-109-ENG-38
• Assignee: Dept. of Energy
• OSTI ID: 6927539
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SUPERCONDUCTING DEVICES
DESIGN
FABRICATION
CAPACITORS
ELECTRICAL EQUIPMENT
FILMS
FILTERS
SQUID DEVICES
SUBSTRATES
SUPERCONDUCTORS
ELECTRONIC EQUIPMENT
EQUIPMENT
FLUXMETERS
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
420201* - Engineering- Cryogenic Equipment & Devices