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Telecommunications and Radio Engineering
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ISSN Imprimer: 0040-2508
ISSN En ligne: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v72.i9.80
pages 829-840

SIMULATION OF NONLINEAR EFFECTS OF HIGH TEMPERATURE SUPERCONDUCTING RESONATORS AND FILTERS

A. I. Luchaninov
Kharkov National University of Radio Engineering and Electronics, 14, Lenin Ave, Kharkov, 61166
E.V. Krikun
Kharkiv National University of Radio Engineering and Electronics, 14, Lenin Ave, Kharkiv, 61166, Ukraine
D. S. Gavva
Kharkiv National University of Radio Electronics, 14 Nauka Ave., 61166, Kharkiv, Ukraine

RÉSUMÉ

Surface impedance of devices made of the high temperature superconductors exhibits nonlinear properties. Nonlinear phenomena emerge in the course of such devices operation; these phenomena can cast doubt on utility of the HTSC materials application to the microwave engineering. In this connection the analysis of emerging nonlinear effects is needed even at the stage of the device designing. Nonlinear properties manifest themselves particularly strong in the structures with a high current density. The surface impedance nonlinearity results in the resonant frequency shift at the input power amplification, this, in its turn, will result in different levels of inter modulation distortions of higher harmonics on the pass band boundary.