Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – High frequency waveguides – resonators – electrical networks,...
Patent
1995-06-07
1998-07-28
Lee, Benny T.
Superconductor technology: apparatus, material, process
High temperature devices, systems, apparatus, com- ponents,...
High frequency waveguides, resonators, electrical networks,...
333204, 333219, 333 99S, 505701, 505866, H01P 1203, H01B 1202
Patent
active
057863032
ABSTRACT:
A microwave bandpass filter has a planar configuration formed in microstrip or stripline where a circuit is printed onto a substrate. The filter has at least two patch resonators with a T-shaped coupling path extending between the two resonators. In a further embodiment of the invention, one or more resonators is isolated from other resonators in the filter by being located in a compartmentalized housing or separate housings to eliminate undesirable coupling between a resonator in one compartment and a resonator in another compartment. The filter of the present invention has improved performance characteristics over previous patch resonator filters.
REFERENCES:
patent: 5136268 (1992-08-01), Fiedziuszko et al.
patent: 5172084 (1992-12-01), Fiedziuszko et al.
patent: 5484764 (1996-01-01), Fiedziuszko et al.
Curtis, J.A & Fiedziuszko, S.J., "Dual Mode Microstrip Filters"; Applied Microwave; Fall 1991; pp. 86-93.
Com Dev Ltd.
Lee Benny T.
Schnurr Daryl W.
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