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2 results on '"planar high temperature superconductors"'

1. Harmonic balance algorithms for the nonlinear simulation of HTS devices

Author

Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. RF&MW - Grup de Recerca de sistemes, dispositius i materials de RF i microones, Collado Gómez, Juan Carlos, Mateu Mateu, Jordi, Parrón Granados, Josep, Pons, J., O'Callaghan Castellà, Juan Manuel, Rius Casals, Juan Manuel, Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. RF&MW - Grup de Recerca de sistemes, dispositius i materials de RF i microones, Collado Gómez, Juan Carlos, Mateu Mateu, Jordi, Parrón Granados, Josep, Pons, J., O'Callaghan Castellà, Juan Manuel, and Rius Casals, Juan Manuel

Abstract

This paper describes the application of Harmonic Balance algorithms to predict nonlinear effects in planar High Temperature Superconductors (HTS) microwave circuits. The resulting algorithms are fast and efficient and can be used both for the characterization of the nonlinearities in the HTS material, and for the prediction of the behavior of an HTS circuit given the parameters of these nonlinearities (such as a dependence of the surface impedance on the current density). Most previously published nonlinear HTS models can be used, because the algorithms are not restricted to a specific model of HTS nonlinearities. Two different types of algorithms are described: (1) algorithms specific for one-dimensional resonators (transmission lines and TM010 disk resonators) and (2) an algorithm based on the combination of Method of Moments and Harmonic Balance, applicable to 2D planar structures with few restrictions in their shape. Several cross-checks with theory and measurements are presented., Peer Reviewed

Published
2001

2. Harmonic balance algorithms for the nonlinear simulation of HTS devices

Author

Collado Gómez, Juan Carlos|||0000-0002-8869-2739, Mateu Mateu, Jordi|||0000-0001-9833-9966, Parrón Granados, Josep, Pons, J., O'Callaghan Castellà, Juan Manuel|||0000-0002-2740-0202, Rius Casals, Juan Manuel|||0000-0003-0606-5422, Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, and Universitat Politècnica de Catalunya. RF&MW - Grup de Recerca de sistemes, dispositius i materials de RF i microones

Subjects
current density, 2D planar structures, Method of moments (Statistics), method of moments, transmission lines, harmonic balance algorithms, TM010 disk resonators, superconducting microwave devices, nonlinear simulation, high-temperature superconductors, superconducting transmission lines, planar high temperature superconductors, surface impedance, one-dimensional resonators, Semiconductors, HTS devices, Circuits de microones, Condensed Matter::Superconductivity, High temperature superconductivity, characterization, Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Circuits de microones, radiofreqüència i ones mil·limètriques [Àrees temàtiques de la UPC], HTS, microwave circuits, nonlinear effects, intermodulation distortion
Abstract

This paper describes the application of Harmonic Balance algorithms to predict nonlinear effects in planar High Temperature Superconductors (HTS) microwave circuits. The resulting algorithms are fast and efficient and can be used both for the characterization of the nonlinearities in the HTS material, and for the prediction of the behavior of an HTS circuit given the parameters of these nonlinearities (such as a dependence of the surface impedance on the current density). Most previously published nonlinear HTS models can be used, because the algorithms are not restricted to a specific model of HTS nonlinearities. Two different types of algorithms are described: (1) algorithms specific for one-dimensional resonators (transmission lines and TM010 disk resonators) and (2) an algorithm based on the combination of Method of Moments and Harmonic Balance, applicable to 2D planar structures with few restrictions in their shape. Several cross-checks with theory and measurements are presented.

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