NDLI: First-order low-pass negative group delay passive topology

Content Provider	IET Digital Library
Author	Ravelo, B.
Abstract	An innovative theory on the passive circuits capable to generate low-pass negative group delay (NGD) behaviour is introduced. An identification method enabling to identify the first-order NGD simple cells built with resistor-inductor (RL)- and resistor-capacitor (RC)-networks is elaborated. The fundamental characteristics as the NGD level and cut-off frequency are formulated from the low-pass NGD circuit canonical transfer function. The NGD existence conditions are derived in function of the established topology parameters. Despite the attenuation systematically related to the passive cell nature, low-pass NGD behaviours with tens ns NGD level and tens MHz bandwidth were obtained with an example of lumped RL-network-based L-topology circuit. Transient analysis was performed to illustrate that the NGD phenomenon enables to exhibit baseband signal advance effect. The proposed NGD topology simplicity promises their potential applications especially in term of signal correction and the modern electronic system improvement.
Starting Page	124
Ending Page	126
Page Count	3
ISSN	00135194
Volume Number	52
e-ISSN	1350911X
Issue Number	Issue 2, Jan (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/52/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2015.2856
Journal	Electronics Letters
Publisher Date	2015-11-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Analogue Circuit Cut-off Frequency Delay Circuit First-order Low-pass Negative Group Delay Identification Method Low-pass NGD Circuit Canonical Transfer Function Mathematical Analysis Passive Circuit Topology Passive Filter Passive Network RC Circuit RC-network Resistor-capacitor-network Resistor-inductor-network RL-network Signal Correction Transfer Function Transient Analysis
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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