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Familiarity analysis and time-advance experimental study of LP-NGD RC-circuit intended to operate with Unity-normalized gain

Jun Yan Cui (Nanjing University of Information Science and Technology (NUIST), Nanjing, China)
Hakim Epea Silochi (Nanjing University of Information Science and Technology (NUIST), Nanjing, China)
Robert Wieser (Nanjing University of Information Science and Technology (NUIST), Nanjing, China)
Shi Junwen (Nanjing University of Information Science and Technology (NUIST), Nanjing, China)
Habachi Bilal (Aix-Marseille University, CNRS, University of Toulon, Marseille, France)
Samuel Ngoho (Association Française de Science des Systèmes (AFSCET), Paris, France)
Blaise Ravelo (Nanjing University of Information Science and Technology (NUIST), Nanjing, China)

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering

ISSN: 0332-1649

Article publication date: 18 July 2024

Issue publication date: 5 September 2024

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Abstract

Purpose

The purpose of this paper is to develop a familiarity analysis of resistive-capacitive (RC) network active circuit operating with unfamiliar low-pass (LP) type negative group delay (NGD) behavior. The design method of NGD circuit is validated by simulation with commercial tool and experimental measurement.

Design/methodology/approach

The present research work methodology is structured in three main parts. The familiarity theory of RC-network LP-NGD circuit is developed. The LP-NGD circuit parameters are expressed in function of the targeted time-advance. Then, the feasibility study is based on the theory, simulation and measurement result comparisons.

Findings

The RC-network based LP-NGD proof of concept is validated with −1 and −0.5 ms targeted time-advances after design, simulation, test and characterized. The LP-NGD circuit unity gain prototype presents NGD cut-off frequencies of about 269 and 569 Hz for the targeted time-advances, −1 and −0.5 ms, respectively. Bi-exponential and arbitrary waveform signals were tested to verify the targeted time-advance.

Research limitations/implications

The performance of the unfamiliar LP-NGD topology developed in the present study is limited by the parasitic elements of constituting lumped components.

Practical implications

The NGD circuit enables to naturally reduce the undesired delay effect from the electronic and communication systems. The NGD circuit can be exploited to reduce the delay induced by electronic devices and system.

Social implications

As social impacts of the NGD circuit application, the NGD function is one of prominent solutions to improve the technology performances of future electronic device in term of communication aspect and the transportation system.

Originality/value

The originality of the paper concerns the theoretical approach of the RC-network parameters in function of the targeted time-advance and the input signal bandwidth. In addition, the experimental results are also particularly original.

Keywords

Acknowledgements

This research work is supported by National Natural Science Foundation of China (NSFC) in part by Grant No. 62350610268 and in part by Grant No. 62371241.

Citation

Cui, J.Y., Silochi, H.E., Wieser1, R., Junwen, S., Bilal, H., Ngoho, S. and Ravelo, B. (2024), "Familiarity analysis and time-advance experimental study of LP-NGD RC-circuit intended to operate with Unity-normalized gain", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 43 No. 5, pp. 1007-1022. https://doi.org/10.1108/COMPEL-07-2023-0301

Publisher

:

Emerald Publishing Limited

Copyright © 2024, Emerald Publishing Limited

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