Measuring Reactive-Load Impedance with Transmission-Line Resonators Beyond the Perturbative Limit

Fuente: arXiv
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Main Authors: Chu, Xuanjing, Park, Jinho, Balgley, Jesse, Clemons, Sean, Chung, Ted S., Watanabe, Kenji, Taniguchi, Takashi, Ranzani, Leonardo, Gustafsson, Martin V., Fong, Kin Chung, Hone, James
Format: Preprint
Published: 2025
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author Chu, Xuanjing
Park, Jinho
Balgley, Jesse
Clemons, Sean
Chung, Ted S.
Watanabe, Kenji
Taniguchi, Takashi
Ranzani, Leonardo
Gustafsson, Martin V.
Fong, Kin Chung
Hone, James
author_facet Chu, Xuanjing
Park, Jinho
Balgley, Jesse
Clemons, Sean
Chung, Ted S.
Watanabe, Kenji
Taniguchi, Takashi
Ranzani, Leonardo
Gustafsson, Martin V.
Fong, Kin Chung
Hone, James
contents We develop an analytic framework to extract circuit parameters and loss tangent from superconducting transmission-line resonators terminated by reactive loads, extending analysis beyond the perturbative regime. The formulation yields closed-form relations between resonant frequency, participation ratio, and internal quality factor, removing the need for full-wave simulations. We validate the framework through circuit simulations, finite-element modeling, and experimental measurements of van der Waals parallel-plate capacitors, using it to extract the dielectric constant and loss tangent of hexagonal boron nitride. Statistical analysis across multiple reference resonators, together with multimode self-calibration, demonstrates consistent and reproducible extraction of both capacitance and loss tangent in close agreement with literature values. In addition to parameter extraction, the analytic relations provide practical design guidelines for maximizing energy participation ratio in the load and improving the precision of resonator-based material metrology.
format Preprint
id arxiv_https___arxiv_org_abs_2511_14621
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Measuring Reactive-Load Impedance with Transmission-Line Resonators Beyond the Perturbative Limit
Chu, Xuanjing
Park, Jinho
Balgley, Jesse
Clemons, Sean
Chung, Ted S.
Watanabe, Kenji
Taniguchi, Takashi
Ranzani, Leonardo
Gustafsson, Martin V.
Fong, Kin Chung
Hone, James
Quantum Physics
Superconductivity
Applied Physics
We develop an analytic framework to extract circuit parameters and loss tangent from superconducting transmission-line resonators terminated by reactive loads, extending analysis beyond the perturbative regime. The formulation yields closed-form relations between resonant frequency, participation ratio, and internal quality factor, removing the need for full-wave simulations. We validate the framework through circuit simulations, finite-element modeling, and experimental measurements of van der Waals parallel-plate capacitors, using it to extract the dielectric constant and loss tangent of hexagonal boron nitride. Statistical analysis across multiple reference resonators, together with multimode self-calibration, demonstrates consistent and reproducible extraction of both capacitance and loss tangent in close agreement with literature values. In addition to parameter extraction, the analytic relations provide practical design guidelines for maximizing energy participation ratio in the load and improving the precision of resonator-based material metrology.
title Measuring Reactive-Load Impedance with Transmission-Line Resonators Beyond the Perturbative Limit
topic Quantum Physics
Superconductivity
Applied Physics
url https://arxiv.org/abs/2511.14621