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This work demonstrates novel multifunction filters achieving real and imaginary component extraction, suggesting advances in signal processing technology.
This work presents novel designs of multifunction topologies for simultaneously extracting the real and imaginary components of complex band‐pass and notch filters, which are derived from prototype first‐order low‐pass and high‐pass filters. The real and imaginary parts of the complex filters are then post‐processed to compute the instantaneous magnitude. The performance of both the multifunction topologies and post‐processing stages is evaluated using the OrCAD PSpice suite, as well as through experimental results.
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Nako et al. (2025) studied this question.
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