摘要 |
A tuner for matching impedance includes: a body having a tubular outer conductor and a tubular inner conductor coaxially provided in the outer conductor, the body forming a part of the microwave transmission path; an annular dielectric slug provided between the outer conductor and the inner conductor, the slug being movable along a longitudinal direction of the inner conductor; and a drive mechanism for moving the slug and including a drive part for applying a driving force; a drive transmission part for transmitting the driving force to the slug; a drive guide part for guiding movement of the slug; and a holding part for holding the slug at the drive transmission part, and wherein the drive transmission part, the drive guide part and the holding part are accommodated in the inner conductor. |