A Synthesis of Complex Allpass Circuits Using the Factorization of Scattering Matrices--Explicit Formulae for Even-Order Real Complementary Filters Having Butterworth or Chebyshev Responses-- Nobuo MURAKOSHIEiji WATANABEAkinori NISHIHARA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1992/03/25 Vol. E75-ANo. 3pp. 362-368 Type of Manuscript: Special Section PAPER (Special Section on the 4th Karuizawa Workshop on Circuits and Systems) Category: Keyword: variable filter, IIR filter, cut-off frequency, frequency transformation, direct form, lattice form,