Removing the Froissart Doublets in a Rational Interpolation Based on Loewner Matrix
نویسندگان
چکیده
In order to implement wide band frequency sweeping, the S-parameters can be fitted with an adaptive rational interpolation based on Loewner matrix. However, errors in sampling data may lead Froissart doublets, which look like spikes curve. this paper, a novel technique is proposed remove these doublets. At first, expression converted into sum of partial fractions by solving two generalized eigenvalue problems. After that, fraction term smallest imaginary part pole and relatively large absolute value considered generate Removing results smooth polynomial, validated example passive circuit simulated finite element method(FEM).
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ژورنال
عنوان ژورنال: Applied Computational Electromagnetics Society Journal
سال: 2023
ISSN: ['1054-4887', '1943-5711']
DOI: https://doi.org/10.13052/2023.aces.j.380109