https://orcid.org/0000-0002-5626-6065
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Abstract
This paper presents an investigation on innovative bandpass negative group delay (NGD) control. The bandpass NGD theory is elaborated with patch antenna-based circuit input impedance. The S-matrix and group delay (GD) models are expressed in function of the circuit geometrical parameters. To validate the no-contact electromagnetic coupling bandpass NGD control, proof of concept is designed, fabricated and tested. The bandpass NGD behavior is in good agreement between theoretical model, EM full wave simulation and measurement, which shows NGD center frequency, 2.2 GHz, value, −0.67 ns and insertion loss, −2.93 dB, and reflection loss, −11.39 dB. It is also demonstrated that the NGD parameters vary in function of the metallic sheet-patch distance increased progressively from 0 to 26 cm.
Acknowledgements
This research work was supported in part by NSFC under Grant 61601233 and Grant 61971230, in part by the Electrostatic Research Foundation of Liu Shanghe Academicians and Experts Workstation, Beijing Orient Institute of Measurement and Test under Grant BOIMTLSHJD20181003, in part by the Jiangsu Innovation and Enterprise Group Talents Plan 2015 under Grant SRCB201526, and in part by The Priority Academic Program Development of Jiangsu Higher Education Institutions. The authors would like to thank anonymous reviewers for their valuable contributions leading to improve the current version of our proposal.
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No potential conflict of interest was reported by the author(s).
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Notes on contributors
Lili Wu
Ms. Lili Wu received the B. Sc. degree in electrical engineering from Hefei Normal University, Hefei, China, in 2018. She is currently working toward the M.S. degree with the Nanjing University of Information Science and Technology, Nanjing, China. Her research interests include negative group delay (NGD) and RF/microwave circuits.
Fayu Wan
Dr. Fayu Wan was received the Ph.D. degree in electronic engineering from the University of Rouen, Rouen, France, in 2011. From 2011 to 2013, he was a Postdoctoral Fellow with the Electromagnetic Compatibility Laboratory, Missouri University of Science and Technology, Rolla. He is currently a Full Professor with the Nanjing University of Information Science and Technology, Nanjing, China. His current research interests include negative group delay circuits, electrostatic discharge, electromagnetic compatibility, and advanced RF measurement.
Wenceslas Rahajandraibe
Prof. Dr. Wenceslas Rahajandraibe is currently professor at the University of Aix-Marseille. He heads the Integrated Circuit Design group of the IM2NP laboratory. His research is focused on the design of Analog and RF IC's for telecommunication systems and for smart sensor ultra-low power IC interfaces.
Sébastien Lalléchère
Dr. Sébastien Lalléchère received the PhD. Degree in electronics/electromagnetism from Université Blaise Pascal, Clermont-Ferrand, France, in 2006. He is currently an Associate Professor at Institut Pascal and Université Clermont Auvergne, France. His research interests cover the fields of electromagnetic compatibility including complex electromagnetic environments, electromagnetic coupling, and computational electromagnetics.
Blaise Ravelo
Prof. Dr. Blaise Ravelo is currently Professor at NUIST, China. He is a pioneer of the NGD concept and its applications. His Google scholar h-index in 2020 is 20. He is (co-)authors of more than 250 scientific research papers published in int. conf. and journals.