Synthesizing active filters

Mitra, S.K.

doi:10.1109/mspec.1969.5214325

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1969

2012

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Cited by 17 publications

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Stable high q active networks

Levi

Zeheb²

1976

Circuit Theory & Apps

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A new approach is suggested to approximate the amplitude frequency behaviour of a given high Q poles network function, by an explicit function having poles with a predetermined desired low Q, and with explicit knowledge and control of the error. The method is practical for reducing Q's by the ratio of up to 6. Any critical pole-pair is replaced by an approximating function possessing a complex conjugate n-th order pole-pair and a ( n -1)-th order zero-pair. A general second order low Q building block is derived as an example. Measured results proving the practical usefulness of the method, are reported.

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