arXiv Open Access 2021

Tunable High-Q Resonator by General Impedance Converter

T. Mifune T. M. Mishonov N. S. Serafimov I. M. Dimitrova R. Popeski-Dimovski +4 lainnya

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Abstrak

For the need of measurements focused in condensed matter physics and especially Bernoulli effect in superconductors we have developed an active resonator with dual operational amplifiers. A tunable high-Q resonator is performed in the schematics of the 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 immanent parameter the crossover frequency of the operational amplifier. Voltage measurements of GIC with a lock-in amplifier perfectly agree with the derived formulas. A table reveals that electrometer operational amplifiers are the best choice to build the described resonator.

Topik & Kata Kunci

physics.ins-det cond-mat.supr-con

Penulis (9)

T. Mifune

T. M. Mishonov

N. S. Serafimov

I. M. Dimitrova

R. Popeski-Dimovski

L. Velkoska

E. G. Petkov

A. M. Varonov

A. Barone

Format Sitasi

APA MLA BibTeX

Mifune, T., Mishonov, T.M., Serafimov, N.S., Dimitrova, I.M., Popeski-Dimovski, R., Velkoska, L. et al. (2021). Tunable High-Q Resonator by General Impedance Converter. https://arxiv.org/abs/2105.11536

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Tahun Terbit: 2021
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓