Correction of resonance frequency for rf amplifiers based on superconducting quantum interference device

Y. H. Lee; K. K. Yu; J. M. Kim; S. K. Lee; Y. Chong; S. J. Oh; Y. K. Semertzidis

doi:10.9714/psac.2018.20.4.006

Correction of resonance frequency for rf amplifiers based on superconducting quantum interference device

Y. H. Lee, K. K. Yu, J. M. Kim, S. K. Lee, Y. Chong, S. J. Oh, Y. K. Semertzidis

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Low-noise amplifiers in the radio-frequency (RF) band based on the direct current (DC) superconducting quantum interference device (SQUID) can be used for quantum-limited measurements in precision physics experiments. For the prediction of peak-gain frequency of these amplifiers, we need a reliable design formula for the resonance frequency of the microstrip circuit. We improved the formula for the resonance frequency, determined by parameters of the DC SQUID and the input coil, and compared the design values with experimental values. The proposed formula showed much accurate results than the conventional formula. Minor deviation of the experimental results from the theory can be corrected by using the measured geometrical parameters of the input coil line.

Original language	English
Pages (from-to)	6-10
Number of pages	5
Journal	Progress in Superconductivity and Cryogenics (PSAC)
Volume	20
Issue number	4
DOIs	https://doi.org/10.9714/psac.2018.20.4.006
State	Published - 2018
Externally published	Yes

Keywords

Amplification gain
Radio-frequency amplifier
Resonance frequency
SQUID

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10.9714/psac.2018.20.4.006

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title = "Correction of resonance frequency for rf amplifiers based on superconducting quantum interference device",

abstract = "Low-noise amplifiers in the radio-frequency (RF) band based on the direct current (DC) superconducting quantum interference device (SQUID) can be used for quantum-limited measurements in precision physics experiments. For the prediction of peak-gain frequency of these amplifiers, we need a reliable design formula for the resonance frequency of the microstrip circuit. We improved the formula for the resonance frequency, determined by parameters of the DC SQUID and the input coil, and compared the design values with experimental values. The proposed formula showed much accurate results than the conventional formula. Minor deviation of the experimental results from the theory can be corrected by using the measured geometrical parameters of the input coil line.",

keywords = "Amplification gain, Radio-frequency amplifier, Resonance frequency, SQUID",

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year = "2018",

doi = "10.9714/psac.2018.20.4.006",

language = "English",

volume = "20",

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T1 - Correction of resonance frequency for rf amplifiers based on superconducting quantum interference device

AU - Lee, Y. H.

AU - Yu, K. K.

AU - Kim, J. M.

AU - Lee, S. K.

AU - Chong, Y.

AU - Oh, S. J.

AU - Semertzidis, Y. K.

PY - 2018

Y1 - 2018

N2 - Low-noise amplifiers in the radio-frequency (RF) band based on the direct current (DC) superconducting quantum interference device (SQUID) can be used for quantum-limited measurements in precision physics experiments. For the prediction of peak-gain frequency of these amplifiers, we need a reliable design formula for the resonance frequency of the microstrip circuit. We improved the formula for the resonance frequency, determined by parameters of the DC SQUID and the input coil, and compared the design values with experimental values. The proposed formula showed much accurate results than the conventional formula. Minor deviation of the experimental results from the theory can be corrected by using the measured geometrical parameters of the input coil line.

AB - Low-noise amplifiers in the radio-frequency (RF) band based on the direct current (DC) superconducting quantum interference device (SQUID) can be used for quantum-limited measurements in precision physics experiments. For the prediction of peak-gain frequency of these amplifiers, we need a reliable design formula for the resonance frequency of the microstrip circuit. We improved the formula for the resonance frequency, determined by parameters of the DC SQUID and the input coil, and compared the design values with experimental values. The proposed formula showed much accurate results than the conventional formula. Minor deviation of the experimental results from the theory can be corrected by using the measured geometrical parameters of the input coil line.

KW - Amplification gain

KW - Radio-frequency amplifier

KW - Resonance frequency

KW - SQUID

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M3 - Article

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JO - Progress in Superconductivity and Cryogenics (PSAC)

JF - Progress in Superconductivity and Cryogenics (PSAC)

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Correction of resonance frequency for rf amplifiers based on superconducting quantum interference device

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Keywords

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