title: Note: Tunable overlapping half-ring resonator.
abstract: A unique tunable microwave resonator with a pair of half-rings is introduced and validated by experimental data. The capacitive gap between the overlapping areas can be controlled accurately using a magnetic actuator for tunability. The design geometry is scalable to cover different bands of electromagnetic spectrum. Transmission characteristics of the resonators have been modeled using finite-element analysis and have been measured. The experimental results indicate the resonant frequency can be controlled with a resolution of a few MHz in a tuning range of 38%. The resonator exhibits sharp transmission dips within the tuning range with measured quality factors larger than 2500.
authors.affiliation: Department of Electrical and Electronics Engineering, Bogazici University, Bebek 34342, Istanbul, Turkey.
authors.forename: H
authors.initials: H
authors.lastname: Torun
authors.forename: S
authors.initials: S
authors.lastname: Sadeghzadeh
authors.forename: A D
authors.initials: AD
authors.lastname: Yalcinkaya