dc.contributor
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.contributor
Universitat Politècnica de Catalunya. RF&MW - Grup de Recerca de sistemes, dispositius i materials de RF i microones
dc.contributor.author
Collado Gómez, Juan Carlos
dc.contributor.author
Mateu Mateu, Jordi
dc.contributor.author
Booth, James C.
dc.contributor.author
O'Callaghan Castellà, Juan Manuel
dc.identifier
Collado, C.; Mateu, J.; Booth, J. C.; O'Callaghan, J. Detuning and saturation of superconducting devices: formulation and measurements. IEEE MTT-S International Microwave Symposium, 2007. New York: Institute of Electrical and Electronic Engineers, 2007, p. 2023-2026.
dc.identifier
https://hdl.handle.net/2117/1371
dc.description.abstract
Saturation and detuning of high temperature superconducting (HTS) resonators and filters may occur due to the inherent nonlinear properties of the superconductor. In HTS transmission lines, these nonlinear properties introduce a dependence of the inductance and resistance per unit length on the current through the line and, if the line forms a resonator, this current dependence provokes changes in quality factor and/or resonant frequency with incident power. This paper derives equations for the dependence of the quality factor and resonant frequency of a nonlinear transmission line vs. source power and relates it to the circuit parameters of a nonlinear transmission line. The equations are verified with measurements in a 3.3 GHz YBa2Cu3O7-x (YBCO) coplanar waveguide (CPW) resonator at 76 K and with simulations using harmonic balance
dc.description.abstract
Peer Reviewed
dc.format
application/pdf
dc.publisher
Institute of Electrical and Electronics Engineers
dc.relation
Detuning and saturation of superconducting devices: formulation and measurements
dc.subject
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Circuits de microones, radiofreqüència i ones mil·limètriques
dc.subject
Electric lines Superconducting
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Electronic apparatus and appliances
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Nonlinear transmission line
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Superconductor
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Superconducting resonator
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Superconductors
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Dispositius electrònics
dc.title
Detuning and saturation of superconducting devices: formulation and measurements
dc.type
Conference report
