FIELD: electricity.
SUBSTANCE: band-rejection filter consists of high-Q ceramic resonators and contains the main current-carrying conductor located at one side of dielectric substrate while at its other side there are sections of strip conductors having connection through the face with the main current-carrying conductor and galvanic coupling with ceramic resonators. At that location of spurious rejection band depends on thickness of dielectric substrate.
EFFECT: obtaining high slope ration for rejection band at frequency F0 and shifting spurious rejection band further than 3F0.
3 dwg
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