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Resonance Effect Reduction with Bandpass Negative Group Delay Function

Abstract : This paper introduces an original reduction method of resonance effect dispersion by using bandpass negative group delay (NGD) function. The resonance dispersion transfer function (TF) model is parametrized by lumped RLC circuit. The canonical parameters of NGD passive cell are originally formulated as a function of the resonance dispersion specifications. The NGD resonance method feasibility is validated with commercial tool frequency domain simulations. Proof-of-concept circuits constituted by passive RLC-resonant and NGD passive ones are considered. The results confirm an obvious reduction of peak resonance magnitudes and GDs from (18-dB, 10-ns) to better than (2-dB, 2-ns) are realized in the NGD bandwidth of about 80 MHz. The NGD method robustness is also investigated with simultaneous and individual relative variations of the dispersion parameters.
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Contributor : Wenceslas RAHAJANDRAIBE Connect in order to contact the contributor
Submitted on : Friday, March 11, 2022 - 11:31:42 PM
Last modification on : Friday, April 1, 2022 - 3:50:56 AM


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Blaise Ravelo, Yajian Gan, Fayu Wan, Wenceslas Rahajandraibe, Sébastien Lalléchère, et al.. Resonance Effect Reduction with Bandpass Negative Group Delay Function. IEEE Transactions on Circuits and Systems II: Express Briefs, Institute of Electrical and Electronics Engineers, 2021, 68 (7), pp.2364-2368. ⟨10.1109/TCSII.2021.3059813⟩. ⟨hal-03606636⟩



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