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Inverse general Chebyshev bandpass filters
Author(s) -
Xiao Fei
Publication year - 2017
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2216
Subject(s) - chebyshev filter , passband , stopband , band pass filter , mathematics , elliptic filter , prototype filter , network synthesis filters , chebyshev polynomials , control theory (sociology) , inverse , ripple , topology (electrical circuits) , mathematical analysis , low pass filter , computer science , filter (signal processing) , electronic engineering , physics , engineering , combinatorics , geometry , control (management) , quantum mechanics , artificial intelligence , voltage , computer vision
Summary In this paper, the synthesis of inverse general Chebyshev bandpass filters is discussed. Unlike general Chebyshev filters that flexibly place transmission zeros to mainly control the performance of the filters in the stopband and keep constant ripple in the passband, inverse general Chebyshev filters are featured by flexible placement of reflection zeros in the passband and keep constant ripple in the stopband. Two approaches to directly derive filtering polynomials of inverse general Chebyshev bandpass filters in the bandpass domain are discussed in detail. By applying the zero‐extraction method, these filtering polynomials could be realized through appropriate networks. Finally, two examples are presented for demonstration.