NDLI: Matched NGD circuit with resistor-connected coupled lines

Content Provider	IET Digital Library
Author	Xiao, Jian Kang Wang, Qiu Fen Ma, Jian Guo
Abstract	A negative group delay (NGD) circuit with simple structure has been proposed by using an open-circuited resonator and a pair of short-circuited coupled lines which are connected with two shunt resistors. The centre frequency of the NGD circuit is dominantly controlled by the open-circuited resonator, while the shunt resistors connected coupled lines are utilised for port matching, which greatly attenuates S 11 of the circuit. The proposed NGD circuit has been fabricated and measured, and the experiment shows an NGD time of − 4.6 ns, an NGD bandwidth of 120 MHz, and an S 11 attenuation of >33 dB. The experimental results approach to the prediction.
Starting Page	903
Ending Page	905
Page Count	3
ISSN	00135194
Volume Number	55
e-ISSN	1350911X
Issue Number	Issue 16, Aug (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/55/16
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2019.1277
Journal	Electronics Letters
Publisher Date	2019-06-25
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Bandwidth 120.0 MHz Coupled Transmission Line Delay Circuit Matched NGD Circuit Negative Group Delay Circuit NGD Bandwidth Open-circuited Resonator Port Matching Resistor Resistor-connected Coupled Line Resonator Short-circuited Coupled Line Shunt Resistors Waveguide And Microwave Transmission Line Waveguide And Microwave Transmission Line Component
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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