| 摘要 |
In a variable filter assembly capable of changing a central frequency and a band width, the variable filter assembly includes a casing which has cavities which are formed by the combination of a cover and a body and are separated by cavity walls, an input port and an output port which penetrate both sides in the longitudinal direction of the casing, a resonator which is attached to the lower side of the cavity, respectively, tuning elements which include a head and a bar which penetrates the cover to be inserted into the resonator, and cams which are respectively located on the head and touch the head. The insertion of the bar can be controlled by the cam. |
