A time domain based method for the accurate measurement of Q-factor and resonance frequency of microwave resonators

Gyüre, B.; Márkus, B. G.; Bernáth, B.; Murányi, F.

doi:10.1063/1.4929865

Title: A time domain based method for the accurate measurement of Q-factor and resonance frequency of microwave resonators

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Abstract

We present a novel method to determine the resonant frequency and quality factor of microwave resonators which is faster, more stable, and conceptually simpler than the yet existing techniques. The microwave resonator is pumped with the microwave radiation at a frequency away from its resonance. It then emits an exponentially decaying radiation at its eigen-frequency when the excitation is rapidly switched off. The emitted microwave signal is down-converted with a microwave mixer, digitized, and its Fourier transformation (FT) directly yields the resonance curve in a single shot. Being a FT based method, this technique possesses the Fellgett (multiplex) and Connes (accuracy) advantages and it conceptually mimics that of pulsed nuclear magnetic resonance. We also establish a novel benchmark to compare accuracy of the different approaches of microwave resonator measurements. This shows that the present method has similar accuracy to the existing ones, which are based on sweeping or modulating the frequency of the microwave radiation.

Authors:

Gyüre, B.; Márkus, B. G.; Bernáth, B.; Murányi, F. ^[1]

Foundation for Research on Information Technologies in Society (IT’IS), Zeughausstrasse 43, 8004 Zurich (Switzerland)

Publication Date:: Tue Sep 15 00:00:00 EDT 2015

OSTI Identifier:: 22482791

Resource Type:: Journal Article

Journal Name:: Review of Scientific Instruments

Additional Journal Information:: Journal Volume: 86; Journal Issue: 9; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748

Country of Publication:: United States

Language:: English

Subject:: 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCURACY; EMISSION; EXCITATION; FOURIER TRANSFORMATION; MICROWAVE RADIATION; NUCLEAR MAGNETIC RESONANCE; QUALITY FACTOR; RESONATORS; SIGNALS; SWITCHES

Citation Formats


                    Gyüre, B., Márkus, B. G., Bernáth, B., Simon, F., E-mail: ferenc.simon@univie.ac.at, and Murányi, F. A time domain based method for the accurate measurement of Q-factor and resonance frequency of microwave resonators.  United States: N. p., 2015. 
        Web.  doi:10.1063/1.4929865.

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                    Gyüre, B., Márkus, B. G., Bernáth, B., Simon, F., E-mail: ferenc.simon@univie.ac.at, & Murányi, F. A time domain based method for the accurate measurement of Q-factor and resonance frequency of microwave resonators.  United States.  https://doi.org/10.1063/1.4929865

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                    Gyüre, B., Márkus, B. G., Bernáth, B., Simon, F., E-mail: ferenc.simon@univie.ac.at, and Murányi, F. 2015.  
        "A time domain based method for the accurate measurement of Q-factor and resonance frequency of microwave resonators".  United States.  https://doi.org/10.1063/1.4929865.

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@article{osti_22482791,

  title        = {A time domain based method for the accurate measurement of Q-factor and resonance frequency of microwave resonators},

  author       = {Gyüre, B. and Márkus, B. G. and Bernáth, B. and Simon, F., E-mail: ferenc.simon@univie.ac.at and Murányi, F.},

  abstractNote = {We present a novel method to determine the resonant frequency and quality factor of microwave resonators which is faster, more stable, and conceptually simpler than the yet existing techniques. The microwave resonator is pumped with the microwave radiation at a frequency away from its resonance. It then emits an exponentially decaying radiation at its eigen-frequency when the excitation is rapidly switched off. The emitted microwave signal is down-converted with a microwave mixer, digitized, and its Fourier transformation (FT) directly yields the resonance curve in a single shot. Being a FT based method, this technique possesses the Fellgett (multiplex) and Connes (accuracy) advantages and it conceptually mimics that of pulsed nuclear magnetic resonance. We also establish a novel benchmark to compare accuracy of the different approaches of microwave resonator measurements. This shows that the present method has similar accuracy to the existing ones, which are based on sweeping or modulating the frequency of the microwave radiation.},

  doi          = {10.1063/1.4929865},

  url          = {https://www.osti.gov/biblio/22482791},
  journal      = {Review of Scientific Instruments},

  issn         = {0034-6748},

  number       = 9,

  volume       = 86,

  place        = {United States},

  year         = {Tue Sep 15 00:00:00 EDT 2015},

  month        = {Tue Sep 15 00:00:00 EDT 2015}

}

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