Results 41 to 50 of about 224 (115)

Novel Gysel Power Dividers with Negative Group Delay Characteristics

International Journal of Antennas and Propagation, 2019
A novel Gysel power divider with negative group delay (NGD), good matching, and low insertion loss is proposed. Resistors connected with short-circuited coupled lines (RCSCL) are shunted at output ports of the Gysel power divider to obtain NGD ...
Zihui Zhu, Zhongbao Wang, Jianhao Zhou, Te Shao, Shaojun Fang, Hongmei Liu   +5 more
doaj   +1 more source

Original Theory of NGD Low Pass-High Pass Composite Function for Designing Inductorless BP NGD Lumped Circuit

IEEE Access, 2020
This paper aims to develop an original circuit theory of inductorless NGD topology. The considered passive cell comprised of resistor and capacitor elements without inductor operates as a bandpass (BP) NGD function.
Blaise Ravelo, Samuel Ngoho, Glauco Fontgalland, Lala Rajaoarisoa, Wenceslas Rahajandraibe, Remy Vauche, Zhifei Xu, Fayu Wan, Junxiang Ge, Sebastien Lallechere   +9 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

Neutralization of LC- and RC-Disturbances with Left-Handed and NGD Effects

Advanced Electromagnetics, 2013
This paper focus is on the neutralization technique of the unwanted physical disturbances in the radio frequencies (RF) and digital electronic structures.
B. Ravelo
doaj   +1 more source

An FET-based microwave active circuit with dual-band negative group delay

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
Recent studies proved that certain electronic active circuits are capable to exhibit simultaneously a negative group delay (NGD) and amplification in microwave frequency bands.
Blaise Ravelo, Serge De Blasi
doaj   +1 more source

Lossy Coupling Matrix Synthesis Approach for the Realization of Negative Group Delay Response

IEEE Access, 2018
In this paper, a systematic synthesis approach is proposed for achieving negative group delay responses using lossy coupling matrix. It is mathematically proved that, for a passive and reciprocal network, loss is the necessary condition to realize a ...
Ranjan Das, Qingfeng Zhang, Haiwen Liu
doaj   +1 more source

Detection of Anticipatory Dynamics between a Pair of Zebrafish. [PDF]

Entropy (Basel), 2023
Chen WJ, Ko IS, Lin CA, Chen CJ, Wu JS, Chan CK.   +5 more
europepmc   +1 more source

Translation-coupled mRNA quality control mechanisms. [PDF]

EMBO J, 2023
Monaghan L, Longman D, Cáceres JF.
europepmc   +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

A Compact Dual-Band Negative Group Delay Microwave Circuit [PDF]

Radioengineering, 2018
A compact dual-band negative group delay circuit (NGDC) is proposed. The proposed NGDC is composed of an open-circuited transmission line and two resistors connected by two transmission lines.
T. Shao, S. Fang, Z. Wang, H. Liu
doaj