| 摘要 |
PCT No. PCT/FI95/00547 Sec. 371 Date Jun. 4, 1996 Sec. 102(e) Date Jun. 4, 1996 PCT Filed Oct. 4, 1995 PCT Pub. No. WO96/11511 PCT Pub. Date Apr. 18, 1996A dielectric resonator including a dielectric resonator body and a frequency controller for adjusting the resonance frequency by moving a conductive metal plane in the vicinity of the dielectric resonator body. The frequency controller has a cylindrical supporting block connected to a casing, and a second cylindrical supporting block gliding telescopically inside it by means of friction surfaces. To this second cylindrical supporting block, a ring-shaped conductive adjustment plane is connected. A second conductive adjustment plane, in turn, is connected to the adjustment mechanism and arranged in a center hole of the ring-shaped adjustment plane and attached to the second supporting block in a manner which transfers the movement of the adjustment mechanism so that it first moves the second adjustment plane for a predetermined adjustment range, and thereafter both adjustment planes together. Thus, the frequency controller has two slopes of adjustment, whereby the adjustment is fast, owing to the movement of both adjustment planes, and also extremely accurate, owing to the fine adjustment function, which is achieved when the smaller adjustment plane is moved alone.
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