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Título:
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Intermodulation distortion in coupled-resonator filters with nonuniformly distributed nonlinear properties - Use in HTS IMD compensation.
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Autor/a:
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Mateu Mateu, Jordi; Booth, James C.; Collado Gómez, Juan Carlos; O'Callaghan Castellà, Juan Manuel
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Otros autores:
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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 |
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Abstract:
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We present a general procedure for calculating intermodulation distortion in coupled-resonator filters that allows one to predict the performance of a nonlinear filter as a function of the general nodal matrix defining the filter and the material parameters that cause the nonlinear behavior. It is valid for almost any type of nonlinear distributed effects, including those produced by high-temperature superconductors, nonlinear dielectrics such as ferroelectrics, or superconductor/ferroelectric bilayers, and it is valid when the spatial distribution of nonlinearities is not uniform. The procedure has been validated with experimental measurements in an eight-pole quasi-elliptic superconducting filter. Using this procedure, we have assessed a combination of materials with different types of nonlinear effects to partially or completely mitigate the filter's nonlinear response. This includes superconducting filters with a ferroelectric pre- or post-distorter stage or even with intermediate ferroelectric compensation stages. |
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Abstract:
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Peer Reviewed |
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Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Circuits de microones, radiofreqüència i ones mil·limètriques
-Ferroelectric devices
-High-temperature superconductors
-Elliptic filters
-Ferroelectric devices
-Intermodulation distortion
-Nonlinear filters
-Poles and zeros
-Resonator filters
-Superconducting filters
-Intermodulation distortion
-Coupled-resonator filters
-Nonuniformly distributed nonlinear properties
-HTS IMD compensation
-Nonlinear filter
-General nodal matrix
-Nonlinear distributed effects
-High-temperature superconductors
-Nonlinear dielectrics
-Superconductor/ferroelectric bilayers
-Eight-pole quasielliptic superconducting filter
-Nonlinear response
-Harmonic balance
-Intermodulation products
-Nonlinear measurements
-Superconductors a altes temperatures |
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Derechos:
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Tipo de documento:
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Artículo |
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Editor:
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IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
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