Negative group delay circuits and applications: Feedforward amplifiers, phased-array antennas, constant phase shifters, non-foster elements, interconnection …

JK Xiao, QF Wang, JG Ma - IEEE Microwave Magazine, 2021 - ieeexplore.ieee.org
With the rapid development of newgeneration communication technology such as multiple-
input/multiple-output technology, ultrawideband communication, and 5G technology …

Resonance effect reduction with bandpass negative group delay fully passive function

B Ravelo, F Wan, J Nebhen… - … on Circuits and …, 2021 - ieeexplore.ieee.org
This brief introduces an original reduction method of resonance effect dispersion by using
bandpass negative group delay (NGD) function. The dispersion transfer function (TF) is …

Wideband flat negative group delay circuit with improved signal attenuation

Z Wang, Y Meng, S Fang, H Liu - IEEE Transactions on Circuits …, 2022 - ieeexplore.ieee.org
A novel wideband flat negative group delay (NGD) circuit with improved signal attenuation is
proposed. The proposed negative group delay circuit (NGDC) is composed of three …

A compact dual-band differential negative group delay circuit with wideband common mode suppression

Z Wang, S Zhao, H Liu, S Fang - IEEE Journal of Microwaves, 2022 - ieeexplore.ieee.org
A compact dual-band differential negative group delay (DNGD) circuit with wideband
common mode suppression is proposed. Two small 180° phase shift swap structures of …

Quad-band NGD investigation on crossed resonator interconnect structure

T Gu, J Chen, B Ravelo, F Wan… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This brief explains why the coupling between crossed interconnect structure and straight I-
lines of printed circuit board (PCB) presents bandpass (BP) negative group delay (NGD) …

Diakoptics modelling applied to flying bird-shape NGD microstrip circuit

B Ravelo, F Wan, N Li, Z Xu, P Thakur… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
This brief develops a diakoptics modelling of a flying bird topology constituted by
interconnected piece-wises of admittance or Y-matrices. The diakoptics principle is …

Negative group delay prototype filter based on cascaded second order stages implemented with Sallen-Key topology

M Kandic, G Bridges - Progress In Electromagnetics Research B, 2021 - jpier.org
Abstract A Negative Group Delay (NGD) filter prototype design based on cascaded identical
2nd-order baseband stages is presented. The prototype design achieves an NGD …

Reconfigurable negative group delay circuit with tunable group delay flatness

Y Meng, Z Wang, S Fang, H Liu - International Journal of RF …, 2022 - Wiley Online Library
A reconfigurable negative group delay circuit (NGDC) with tunable group delay flatness is
presented. The proposed NGDC is composed of an amplifier, three series resistors …

Negative Group Delay Prototype Filter Based on the Reciprocal Transfer Function of a Low-Pass Butterworth Filter Capped at Finite Out-of-Band Gain.

M Kandic, GE Bridges - Progress In Electromagnetics …, 2024 - search.ebscohost.com
Abstract A Negative Group Delay (NGD) prototype filter design based on the reciprocal
transfer function of a low-pass Butterworth filter of a given order, is presented. The out-of …

Design and test of crab-shaped negative group delay circuit

B Ravelo, F Wan, S Lalléchère… - IEEE Design & …, 2021 - ieeexplore.ieee.org
Design and Test of Crab-Shape Negative Group Delay Circuit Page 1 2168-2356 (c) 2020
IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission. See …