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- Title
Matched NGD circuit with resistor-connected coupled lines.
- Authors
Jian-Kang Xiao; Qiu-Fen Wang; Jian-Guo Ma
- Abstract
A negative group delay (NGD) circuit with simple structure has been proposed by using an open-circuited resonator and a pair of shortcircuited 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 S11 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 S11 attenuation of >33 dB. The experimental results approach to the prediction.
- Subjects
POWER dividers; RESONATORS
- Publication
Electronics Letters (Wiley-Blackwell), 2019, Vol 55, Issue 16, p903
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/el.2019.1277