Browsing by Author "Barone A."
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Item Tunable high-Q resonator by general impedance converter(2021-02-01) Mifune T.; Mishonov T.M.; Serafimov N.S.; Dimitrova I.M.; Popeski-Dimovski R.; Velkoska L.; Petkov E.G.; Varonov A.M.; Barone A.A tunable high-Q resonator is performed in the schematics of the General Impedance Converter (GIC). In the framework of frequency dependent open-loop gain of operational amplifiers, a general formula of the frequency dependence of the impedance of GIC is derived. The explicit formulas for the resonance frequency and Q-factor include as an immanent parameter the crossover frequency of the operational amplifier. Voltage measurements of GIC with a lock-in amplifier perfectly agree with the derived formulas.