Patent ID: 9614265
Date: 2017-04-04
CPC Classifications: H01P

Claim:
1. A tunable filter device that changes a central frequency and a bandwidth, the tunable filter device comprising: a body forming a plurality of cavities together with a cover, the plurality of cavities defined by a plurality of cavity partitions, wherein each of the plurality of cavity partitions includes an opening therethrough; a resonator attached to or integrally formed on a lower surface of one of the cavities; a frequency-tuning element including a first head, a second head, a first shaft, and a second shaft, the first shaft passed through the cover and inserted in the resonator, the second shaft passed through the cover and inserted proximate the opening through one of the plurality of cavity partitions; a plurality of cams including a first cam to contact the first head and a second cam to contact the second head, wherein a first insertion length of the first shaft is controlled by the first cam, wherein a second insertion length of the second shaft is controlled by the second cam, and wherein a profile of each cam has an n-number of operation points disposed at different distances from a center of the cam every time the cam rotates about 360/n degrees.