ARRANGEMENT AND METHOD RELATING TO FILTERING OF SIGNALS

摘要

The present invention relates to a superconducting notch or band reject filter arrangement (10) which comprises a superconducting dielectric resonator (11) and a waveguide arrangement (15) comprising a microstrip line to which the resonator is connected. The resonator (11) is a parallel-plate resonator with a chip of a non-linear dielectric material (12) on which superconductors (13a, 13b) are arranged and the waveguide arrangement comprises contact means or a coupling means (18), the resonator (11) being connected to said contact means (18) of the waveguide arrangement in such a way that electric contact is provided and the filter arrangement is frequency tuneable. Through said arrangement the insertion losses are low.