Superconductive planar radio frequency filter having resonators

Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – High frequency waveguides – resonators – electrical networks,...

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505700, 505701, 505866, 333 99005, 333204, 333219, H01P 1203, H01B 1202

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active

061225339

ABSTRACT:
A planar filter for performing signal filtering at radio frequencies is provided. The planar filter can include asymmetrical resonators, wherein each resonator is asymmetrical about a longitudinal center axis through the resonator. In addition, the resonators can be grouped in coupled pairs such that the resonators in each coupled pair are asymmetrical about a longitudinal center axis between the paired resonators. In addition, a coupling structure is provided that includes both distributed coupling and tapped coupling to a resonator. Further, a bandstop filter device is provided that includes coupling between resonators in the filter.

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