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The Modified Generalized Chebyshev Filter with Two Attenuation Poles in Stopband  

Kim In-Seon (Agency for Defense Development)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.16, no.4, 2005 , pp. 438-446 More about this Journal
Abstract
In this paper, the modified generalized Chebyshev rational function is presented. The new element values of prototype low pass filter are obtained by network synthesis using this rational function. This proposed filter has an equal ripple passband as same as conventional generalized Chebyshev filter, but unlike conventional filter which has only one attenuation pole at finite frequency, the proposed filter has two different from each other attenuation pole in stopband. If the harmonic frequency is set to the second attenuation pole frequency, this harmonic is suppressed efficiently. Furthermore, since the location of the second attenuation pole can be arbitrary adjusted. our filters are very available for the realization of wide stopband, particularly.
Keywords
Generalized Chebyshev Rational Function; Attenuation Pole; Transmission Zero, Filter Synthesis;
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