ABSTIMMBARE FERROELEKTRISCHE RESONATORANORDNUNG

摘要

The present invention relates to a tunable resonating arrangement comprising a resonator apparatus ( 10 ), input/output coupling ( 4 ) means for coupling electromagnetic energy into/out of the resonator apparatus, and a tuning device ( 3 ) for application of a biasing voltage/electric field to the resonator apparatus. The resonator apparatus comprises a first resonator ( 1 ) and a second resonator ( 2 ). Said first resonator is non-tunable and said second resonator is tunable and comprises a ferroelectric substrate ( 21 ). Said first and second resonators are separated by a ground plane ( 13 ) which is common for said first and second resonators, and coupling means ( 5 ) are provided for providing coupling between said first and second resonators. For tuning of the resonator apparatus, the biasing voltage/electric field is applied to the second resonator ( 2 ).