Quality factor of a transmission line coupled coplanar waveguide resonator

Abstract We investigate analytically the coupling of a coplanar waveguide resonator to a coplanar waveguide feedline. Using a conformal mapping technique we obtain an expression for the characteristic mode impedances and coupling coefficients of an asymmetric multi-conductor transmission line. Leadi...

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Main Authors: Ilya Besedin, Alexey P Menushenkov
Format: Article
Language:English
Published: SpringerOpen 2018-01-01
Series:EPJ Quantum Technology
Subjects:
Online Access:http://link.springer.com/article/10.1140/epjqt/s40507-018-0066-3
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author Ilya Besedin
Alexey P Menushenkov
author_facet Ilya Besedin
Alexey P Menushenkov
author_sort Ilya Besedin
collection DOAJ
description Abstract We investigate analytically the coupling of a coplanar waveguide resonator to a coplanar waveguide feedline. Using a conformal mapping technique we obtain an expression for the characteristic mode impedances and coupling coefficients of an asymmetric multi-conductor transmission line. Leading order terms for the external quality factor and frequency shift are calculated. The obtained analytical results are relevant for designing circuit-QED quantum systems and frequency division multiplexing of superconducting bolometers, detectors and similar microwave-range multi-pixel devices.
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spelling doaj.art-f6332a4d24c844dfaf6cf7c894abfc5e2022-12-21T19:47:45ZengSpringerOpenEPJ Quantum Technology2196-07632018-01-015111610.1140/epjqt/s40507-018-0066-3Quality factor of a transmission line coupled coplanar waveguide resonatorIlya Besedin0Alexey P Menushenkov1National University for Science and Technology (MISiS)National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)Abstract We investigate analytically the coupling of a coplanar waveguide resonator to a coplanar waveguide feedline. Using a conformal mapping technique we obtain an expression for the characteristic mode impedances and coupling coefficients of an asymmetric multi-conductor transmission line. Leading order terms for the external quality factor and frequency shift are calculated. The obtained analytical results are relevant for designing circuit-QED quantum systems and frequency division multiplexing of superconducting bolometers, detectors and similar microwave-range multi-pixel devices.http://link.springer.com/article/10.1140/epjqt/s40507-018-0066-3coplanar waveguidemicrowave resonatorconformal mappingcoupled transmission linessuperconducting resonator
spellingShingle Ilya Besedin
Alexey P Menushenkov
Quality factor of a transmission line coupled coplanar waveguide resonator
EPJ Quantum Technology
coplanar waveguide
microwave resonator
conformal mapping
coupled transmission lines
superconducting resonator
title Quality factor of a transmission line coupled coplanar waveguide resonator
title_full Quality factor of a transmission line coupled coplanar waveguide resonator
title_fullStr Quality factor of a transmission line coupled coplanar waveguide resonator
title_full_unstemmed Quality factor of a transmission line coupled coplanar waveguide resonator
title_short Quality factor of a transmission line coupled coplanar waveguide resonator
title_sort quality factor of a transmission line coupled coplanar waveguide resonator
topic coplanar waveguide
microwave resonator
conformal mapping
coupled transmission lines
superconducting resonator
url http://link.springer.com/article/10.1140/epjqt/s40507-018-0066-3
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