Superconducting NbTi and Pb(Cu) bandpass filters
Conference
·
· IEEE Trans. Magn.; (United States)
OSTI ID:6388868
Superconducting Nb /SUB 0.45/ Ti /SUB 0.55/ and Pb electroplated on Cu bandpass microwave filters have been constructed to investigate their low loss properties at 4.7 K. An interdigital stripline filter configuration was selected as the optimum structure for future applications. The filter was designed to operate at 8.45 GHz with an equal ripple bandwidth of 0.15 GHz. The insertion loss and the noise temperature contribution were measured at 4.7 K. In addition, the insertion loss was studied as a function of out-of-band power (up to 1 watt) and temperature (4.7 K to T /SUB c/ ). Results on an OFHC Cu filter are included for comparison.
- Research Organization:
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA
- OSTI ID:
- 6388868
- Report Number(s):
- CONF-840937-
- Journal Information:
- IEEE Trans. Magn.; (United States), Journal Name: IEEE Trans. Magn.; (United States) Vol. MAG-21:2; ISSN IEMGA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHALCOGENIDES
COPPER
ELECTRIC FILTERS
ELEMENTS
ENERGY LOSSES
FILTERS
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
LEAD
LOSSES
METALS
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
NOISE
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
REFRACTORY METAL COMPOUNDS
SUPERCONDUCTING WIRES
TEMPERATURE EFFECTS
TEMPERATURE NOISE
TESTING
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WIRES
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHALCOGENIDES
COPPER
ELECTRIC FILTERS
ELEMENTS
ENERGY LOSSES
FILTERS
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
LEAD
LOSSES
METALS
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
NOISE
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
REFRACTORY METAL COMPOUNDS
SUPERCONDUCTING WIRES
TEMPERATURE EFFECTS
TEMPERATURE NOISE
TESTING
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WIRES