| 摘要 |
A tunable RF(Radio Frequency) filter and an RF Filter tuning device are provided to obtain a characteristic suitable for broadband tuning by individually adjusting each tuning bolt. An RF filter tuning device includes a motor(400), at least one main gear(404), a plurality of sub gears(406,408,410), and a plurality of rotation members(414). At least one main gear is rotated by driving the motor. The plurality of sub gears is rotated by corresponding to the rotation of the main gear and is engaged with the main gear. The plurality of rotation members are rotated by corresponding to the rotation of the sub gears and are coupled to the plurality of sub gears. A tuning bolt of an RF filter is coupled to the rotation member and a height thereof is adjusted through rotation by corresponding to the rotation of the rotation member. |
