Microwave resonator of compound oxide superconductor material having a tuning element with a superconductive tip

摘要

A microwave resonator includes a superconducting signal conductor formed on a first dielectric substrate, and a superconducting ground conductor formed on a second dielectric substrate. The first dielectric substrate is stacked on the superconducting ground conductor of the second dielectric substrate. A rod is adjustably provided to be able to penetrate into an electromagnetic field created by a microwave propagation through the superconducting signal conductor, so that the resonating frequency f0 of the microwave resonator can be easily adjusted by controlling the position of a tip end of the rod.