Abstract
The general-purpose set of resonator for the band 32–405 GHz has been studied both theoretically and experimentally. The described resonators are cylindrical cavities with corrugated side surfaces and flat end covers. The simple theoretical approach for TM0mn eigenmode analysis is given. Physical principles of $Q$-factor enhancement, mode selection, frequency stabilization, and matching with standard waveguides are discussed. Experimental techniques and measurement data are given. The loaded $Q$-factor of (0.6–1.0) × 105 at VSWR (voltage standing-wave ratio) < 2.0 has been achieved together with high mode selection and high-frequency stability. A wide range of applications is proposed.
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