Tunable band elimination filter and adjusting method thereof

The invention discloses a tunable band elimination filter and an adjusting method thereof. The tunable band elimination filter comprises a substrate; a conductor disposed on the substrate in a predetermined pattern; wherein the conductor and the substrate form a first band elimination filter; the conductive connecting piece is connected to a first point and a second point of the preset pattern, the first point and the second point serve as points on the conductor and are separated by the substrate, the conductor, the conductive connecting piece and the substrate form a second band elimination filter, and the first band elimination filter and the second band elimination filter form a second band elimination filter. And the working frequencies of the first band elimination filter and the second band elimination filter are different. According to the tunable band elimination filter, at least one of the problems existing in an existing band elimination filter is solved, and the tunable band elimination filter is