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Coupled disk, half-disk and spiral resonators with whispering gallery-like modes
This paper describes the experimental stand for studying the spectral and field characteristics of resonance systems in the millimeter range of electromagnetic waves. We investigated the characteristics of the resonator consisting of two dielectric semicircular-shaped disks the same size. Mode whispering gallery resonator splits with increasing distance between half-disk ranging from 0 to 8 mm. We investigated also the field distributions and radiation pattern of the spiral resonator. Design of tunable filters and systems with directional radiation on the base of such resonators is discussed.