Results 31 to 40 of about 1,189 (168)

Novel Tee-Shaped Topology Theory of Low- and High-Pass NGD Double-Type Function

open access: yesIEEE Access, 2022
Recent investigation reports that certain electronic circuits operate with the unfamiliar negative group delay (NGD) function. It is fundamentally stated that the NGD circuits can be classified in different types.
Hongchuan Jia   +8 more
doaj   +1 more source

Design Optimization of Flattop Interleaver and Its Dispersion Compensation [PDF]

open access: yes, 2007
The objective of this paper is to present a general strategy for design optimization of flattop interleavers, and dispersion compensation for the interleavers, in order to achieve superior optical performance.
Lit, John W.Y., Wei, Li
core   +2 more sources

S-Parameter Model of Three Parallel Interconnect Lines Generating Negative Group-Delay Effect

open access: yesIEEE Access, 2018
This paper develops a negative group-delay (NGD) microwave circuit theory regarding topology consists of three parallel interconnect lines (3-PILs). The NGD topology under study is built using completely distributed microstrip lines. The 3-PIL NGD theory
Fayu Wan   +4 more
doaj   +1 more source

Analytical Design of Dual-Band Negative Group Delay Circuit With Multi-Coupled Lines

open access: yesIEEE Access, 2020
This paper develops an innovative design method of a multi-coupled line (CL) topology of low-loss dual band negative group delay (NGD) circuit. The proposed is conceived using three transmission lines (TLs) with different length in which integrate two ...
Xiang Zhou   +7 more
doaj   +1 more source

Single CFOA-based active Negative Group Delay circuits for signal anticipation

open access: yesEngineering Science and Technology, an International Journal, 2023
The group delay of a signal prior to data monitoring is a crucial consideration in today’s real-time applications, especially for those that involve long sensor arrays or high-order filters.
Onat Baloglu   +2 more
doaj   +1 more source

Implementing negative group delay by using SSPP units with equivalent single negative permeability

open access: yesAlexandria Engineering Journal
Classic circuits for spoof surface plasmon polaritons (SSPPs) usually introduce positive group delay, which leads to problems such as broadening of the pulse signal. In this regard, the SSPP structure with negative group delay (NGD) can be constructed to
Guodong Lu, Yuheng Li, Weiwen Li
doaj   +1 more source

A Novel Fully Reconfigurable Non Foster Capacitance Using Distributed Negative Group Delay Networks

open access: yesIEEE Access, 2019
A novel reconfigurable non-Foster capacitance (NFC) using negative group delay (NGD) circuit is presented in this paper. The NGD circuit is based on a multi-order distributed amplifier which is used to achieve both NGD performance and gain compensation ...
Tiedi Zhang, Tao Yang
doaj   +1 more source

Application of negative group delay active circuits to the design of broadband and constant phase shifters

open access: yes, 2008
Application of negative group delay active circuits to the design of broadband and constant phase shifters, B. Ravelo, M. Le Roy, and A. Perennec, Microwave and Optical Technology Letters, Vol. 50, No.
Le Roy, Marc   +2 more
core   +3 more sources

A Compact Transmission-Line Self-Matched Negative Group Delay Microwave Circuit

open access: yesIEEE Access, 2017
A compact self-matched negative group delay (NGD) circuit without the need for an external matching circuit is proposed. The proposed NGD circuit is composed of two-port open-circuited coupled lines, a short-circuited transmission line and two resistors ...
Te Shao   +4 more
doaj   +1 more source

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

open access: yesIEEE 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   +7 more
doaj   +1 more source

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