Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – High frequency waveguides – resonators – electrical networks,...
Patent
1996-09-27
1999-08-03
Lee, Benny T.
Superconductor technology: apparatus, material, process
High temperature devices, systems, apparatus, com- ponents,...
High frequency waveguides, resonators, electrical networks,...
505700, 505866, 333 99005, 333176, 333202, 333219, H01P 201, H01B 1202
Patent
active
059325224
ABSTRACT:
A bandstop filter contains one or more resonant circuits connected by interconnecting transmission lines. The resonant circuits each have a transmission line connected between two capacitors. One capacitor is connected to the interconnecting transmission line and the other capacitor is connected to ground. The resonant circuits may have a helical coil of superconducting materials as the transmission line. The capacitors may be in the form of screws, which can be inserted into or removed from the center of the helix. The helix may be formed as a discrete structure and supported by a low-loss material within a housing.
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Bell, H. Clark, "L-Resonator Bandstop Filters", 1996 IEEE MTT-S International Microwave Symposium Digest, pp. 1-4.
Bell, H. Clark, "Narrow Bandstop Filters", IEEE Transactions on Microwave Theory and Techniques, vol. 39, No. 12, pp. 2188-2191 (Dec. 1991).
Hunter et al., "Electronically Tunable Microwave Bandstop Filters", IEEE Transactions on Microwave Theory and Techniques, vol. MTT-30, No. 9, pp. 1361-1367 (Sep. 1982).
Matthaei et al., "Microwave Filters, Impedance-Matching Networks, and Coupling Structures", Artech House Books, Dedham, MA, Chapter 12, pp. 725-773 (1964).
Bell H. Clark
Muller Henry John
Illinois Superconductor Corporation
Lee Benny T.
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