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Nonlinear performance characterization in an eight-pole quasi-elliptic bandpass filter
Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Menéndez Nadal, Óscar; O'Callaghan Castellà, 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
In this work we predict the nonlinear behaviour of an eight-pole quasi-elliptic bandpass high temperature superconducting (HTS) filter with an equivalent circuit extracted from intermodulation measurements performed at the centre of the filter passband. We present measurements that show that the equivalent circuit is able to predict the intermodulation products produced by the filter when driven by two in-band or out-of-band sinusoidal signals. Numerical techniques based on harmonic balance are used to extract the elements of the equivalent circuit and to simulate its nonlinear performance.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Circuits de microones, radiofreqüència i ones mil·limètriques
High temperature superconductors
Superconductivity
Electric filters, Bandpass
band-pass filters
equivalent circuits
high-temperature superconductors
superconducting filters
nonlinear performance characterization
8-pole quasi-elliptic bandpass filter
high temperature superconducting filter
equivalent circuit
intermodulation measurements
filter passband
harmonic balance
Superconductors a altes temperatures
Superconductivitat
Filtres elèctrics
Article
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