Title :
Natural frequency and Q-factor estimation for open resonators with strong coupling
Author :
Andreyev, M.V. ; Drobakhin, O.O. ; Saltykov, D.Y.
Author_Institution :
Dnepropetrovsk Nat. Univ., Dnepropetrovsk, Ukraine
Abstract :
It has been shown that the position of a minimum of the frequency dependence of the reflection coefficient for a half-disk resonator does not always coincide with the natural frequency. This result has been obtained by means of numerical simulation for the resonator on the metal mirror with various sizes of the aperture of a coupling element for the mode of whispering gallery. More correct results have been obtained by means of fractional-rational approximation.
Keywords :
Q-factor; approximation theory; electromagnetic wave reflection; frequency estimation; resonators; Q-factor estimation; coupling element aperture; fractional-rational approximation; frequency dependence; half-disk resonator; metal mirror; natural frequency estimation; numerical simulation; open resonators; reflection coefficient; whispering gallery mode; Approximation methods; Couplings; Estimation; Finite element methods; Frequency estimation; Reflection; Resonant frequency;
Conference_Titel :
Microwave and Telecommunication Technology (CriMiCo), 2011 21th International Crimean Conference
Conference_Location :
Sevastopol
Print_ISBN :
978-1-4577-0883-1
