| 摘要 |
PURPOSE:To form an antenna multicoupler while holding the electric characteristics of a resonator in the best state by forming a coupling element for an external circuit by using a rotary coupling loop. CONSTITUTION:A resonance element is formed of a dielectric material which has a high Q, a high dielectric constant, and good temperature characteristics and provided coaxially with a housing 1 in contact with the short-circuit wall of the housing 1. A fine adjusting element for the resonance frequency consists of a metallic screw part 31 engaged threadably with the wall surface of the housing 1, a block 32 which is fitted to the internal terminal of the metallic screw part 31 and made of a dielectric material similar to the resonance element 2, and a lock block 32, and the dielectric block 32 can be moved forth and back finely by rotating the metallic screw part 31 forward and backward. The equivalent area of a loop surface which is cross-linked with a magnetic field by rotating a coupling terminal and the coupling loop to adjust the angle of rotation, thereby fixing the load Q of the resonator at a necessary value.
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