| 摘要 |
PURPOSE:To easily adjust inductance with simple structure by providing the inductance to a lead part itself which is connected to an external circuit, also providing mutual inductance produced by magnetic inductance coupling, and thus forming a lead part for inductance adjustment. CONSTITUTION:Lead wires 41-1 and 41-2 are connected and fixed to the open terminal of the internal conductor 36 of a coaxial dielectric resonator 30 with solder 42, etc., and the other terminal is connected and fixed to a pattern 22 on a substrate 21 similarly. The interval between those two lead wires is increased or decreased to decrease or increase the mutual inductance M, namely, the composite inductance. Therefore, while the inductance of the resonator 30 is held fixed, the inductance of the whole can be adjusted by adjusting the interval of the lead part 40. Namely, when this method is used in the resonance circuit of an oscillator, the oscillation frequency can be adjusted. Consequently, the adjusting operation is facilitated with the extremely simple structure, and the versatility of the dielectric resonance system can be improved. |
