The generalized chebyshev low‐pass prototype filter

Rhodes, John David; Alseyab, Saod A.

doi:10.1002/cta.4490080205

Cited by 65 publications

(24 citation statements)

References 3 publications

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“…However, accuracy may be preserved by using the alternating pole technique [12,13] that derives the two admittances from the common denominator of either the re ection or transmission function, but the method does not apply to asymmetrical transfer functions. So once the two lossy admittances are obtained, either can be expressed as…”

Section: New Synthesis Techniquementioning

confidence: 98%

Synthesis of predistorted reflection‐mode hybrid prototype networks with symmetrical and asymmetrical characteristics

Fathelbab

Hunter

Rhodes

2001

Circuit Theory & Apps

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SUMMARYA new technique for predistorting ÿlter transfer functions to compensate for the dissipative losses present in the resonator elements is introduced. The method is based on the formation of two admittances from lossless transfer functions. Each admittance is then individually predistorted and connected to a 3-dB hybrid coupler. A simulated numerical example demonstrates that the method is capable of designing network prototypes with a combined predistorted re ection and transmission functions. Tables of prototype element values for elliptic lowpass=highpass functions are also provided.

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Section: New Synthesis Techniquementioning

confidence: 98%

Synthesis of predistorted reflection‐mode hybrid prototype networks with symmetrical and asymmetrical characteristics

Fathelbab

Hunter

Rhodes

2001

Circuit Theory & Apps

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“…A lowpass prototype filter (LP filter) with a generalized Chebyshev characteristic is a very good starting point in the design of microwave filters, diplexers, and multiplexers in printed circuit technology [1], [3], [5], [6], [8], [9], [13]. Such filters have a very good selectivity, very close to those of elliptic filters of the same degree.…”

Section: Introductionmentioning

confidence: 99%

“…Such filters have a very good selectivity, very close to those of elliptic filters of the same degree. The spread of element values in the network realized is smaller than that of the corresponding elliptic filter [1], [5], [6], [7], [13], which makes these filters very suitable for realization in printed circuit form [1], [5], [13].…”

Section: Introductionmentioning

confidence: 99%

Design Of Maximally Selective Generalized Chebyshev Filters

Milosavljevic¹,

Gmitrovic²

2002

Circuits, Systems, and Signal Processing

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In this paper, a complete procedure is presented for the synthesis of a class of generalized Chebyshev filters with a maximum of four real transmission zeros of any multiplicity, having an equiripple characteristic in the passband and the stopband, and maximum selectivity. The frequencies of magnitude characteristic extreme values in the stopband are calculated in the closed form. The transmission zeros are obtained by solving a set of nonlinear equations. New formulas for orders of zeros of maximally selective filters are deduced, and these are very useful in the design procedure.

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“…Chebyshev prototype filters [4]. The problem is that there is no direct realisation of the series short circuited stubs associated with this low-pass prototype filter.…”

Section: Introductionmentioning

confidence: 99%