Element values of a generalized Chebyshev prototype filter for suspended substrate stripline

Alseyab, Saod A.; Ashoor, N.

doi:10.1080/00207218608920803

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The Modified Generalized Chebyshev Prototype Lpf1

Introduction1

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2009

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“…Because all of the resonant angular frequencies of these prototype filters have the same 0 , the conventional GC filters have only one finite attenuation pole in the stopband [1][2][3].…”

Section: The Modified Generalized Chebyshev Prototype Lpfmentioning

confidence: 99%

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A modified generalized Chebyshev low‐pass filter with wide stopband

Kim

Lim

et al. 2009

Micro & Optical Tech Letters

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We developed a modified generalized Chebyshev (MGC) rational function and synthesized a low‐pass filter (LPF) to implement it. The conventional generalized Chebyshev (GC) filter and proposed MGC filter have an equal ripple in passband. However, in stopband, the GC filter has only one transmission zero (or attenuation pole) at a finite frequency (f0), whereas the MGC filter has transmission zeros at two finite frequencies (f01 and f02). The second transmission zero at f02 can suppress harmonics (or spurious responses). We designed and fabricated a low‐pass filter according to the proposed theory. The stopband of the MGC filter was 4.7 times wider than that of the GC filter. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1428–1431, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24389

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“…Because all of the resonant angular frequencies of these prototype filters have the same 0 , the conventional GC filters have only one finite attenuation pole in the stopband [1][2][3].…”

Section: The Modified Generalized Chebyshev Prototype Lpfmentioning

confidence: 99%

“…The description of prototype GC filters has been reported by Rhodes et al [1][2][3]. Until now, their structures have been generally regarded as prototypical GC filters.…”

Section: Introductionmentioning

confidence: 99%