Results 21 to 30 of about 60 (52)

Original Application of Stop-Band Negative Group Delay Microwave Passive Circuit for Two-Step Stair Phase Shifter Designing

IEEE Access, 2022
This paper investigates on the theorization, design, fabrication and measurement of original phase shifter (PS) operating with two-step stair phase behavior.
Blaise Ravelo, Glauco Fontgalland, Hugerles S. Silva, Jamel Nebhen, Wenceslas Rahajandraibe, Mathieu Guerin, George Chan, Fayu Wan   +7 more
doaj   +1 more source

Synthesis of RF Circuits with Negative Time Delay by Using LNA

Advanced Electromagnetics, 2013
A demonstration of the negative time-delay by using active circuit topologies with negative group delay (NGD) is described in this paper. This negative time delay is realized with two different topologies operating in base band and modulated frequencies.
B. Ravelo
doaj   +1 more source

Negative Group Delay Theory of a Four-Port RC-Network Feedback Operational Amplifier

IEEE Access, 2019
An innovative negative group delay (NGD) theory based on a unity direct chain feedback (UDCF) circuit topology is developed in this paper. This NGD circuit is an active cell constituted by an operational amplifier in feedback with a four-port RC-network.
Fayu Wan, Taocheng Gu, Blaise Ravelo, Binhong Li, Jing Cheng, Qingyun Yuan, Junxiang Ge   +6 more
doaj   +1 more source

Reconstruction Technique of Distorted Sensor Signals With Low-Pass NGD Function

IEEE Access, 2020
This paper develops a new reconstruction technique of undesirable signal distortion generated by sensor electronic circuits. The introduced reconstruction technique is originally realized with unfamiliar low-pass negative group delay (NGD) function.
Blaise Ravelo, Wenceslas Rahajandraibe, Yajian Gan, Fayu Wan, Nour Mohammad Murad, Alexandre Douyere   +5 more
doaj   +1 more source

The Design Method of the Active Negative Group Delay Circuits Based on a Microwave Amplifier and an RL-Series Network

IEEE Access, 2018
This paper addresses a circuit theory regarding the negative group delay (NGD) principle. The methodology for characterizing this unfamiliar NGD function is described.
Fayu Wan, Ningdong Li, Blaise Ravelo, Qizheng Ji, Binhong Li, Junxiang Ge   +5 more
doaj   +1 more source

S-Matrix and Bandpass Negative Group Delay Innovative Theory of Ti-Geometrical Shape Microstrip Structure

IEEE Access, 2020
A theoretical investigation of distributed microwave circuit built with Ti-shape topology is developed. The topology under study consists of neighbored T- and i-shape interconnect lines.
Xiang Zhou, Taochen Gu, Lili Wu, Fayu Wan, Binhong Li, Nour Mohammad Murad, Sebastien Lallechere, Blaise Ravelo   +7 more
doaj   +1 more source

HP-NGD Circuit Theory With Generalized Exponential Kernel Fractional Derivative-Based Impedances

IEEE Access
In this work, we propose a novel passive circuit theory on fractional High-Pass (HP) Negative Group Delay (NGD) topology by using the fractional order reactive impedance and admittance.
Rawid Banchuin, Willys Noa, Sonia Moussa, Nathan B. Gurgel, Ali Hamada Damien Fakra, Lagouge Tartibu, Marcellin Atemkeng, Glauco Fontgalland, Sebastien Lallechere, Blaise Ravelo   +9 more
doaj   +1 more source

Single-phase transformerless nine-level inverter with voltage boosting ability for PV fed AC microgrid applications. [PDF]

Sci Rep, 2022
Almakhles DJ, Sathik MJ.
europepmc   +1 more source

29th Annual Computational Neuroscience Meeting: CNS*2020. [PDF]

BMC Neurosci, 2020
europepmc   +1 more source

Abstracts of 52nd EASD Annual Meeting. [PDF]

Diabetologia, 2016
europepmc   +1 more source