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06.09.2024

A Novel Flat Broadband Passive Circuit with Negative Group Delay

verfasst von: Aixia Yuan, Niannan Chang, Junzheng Liu, Yuwei Meng

Erschienen in: Circuits, Systems, and Signal Processing | Ausgabe 12/2024

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Abstract

A novel flat negative group delay circuit is proposed. The flatter negative group delay is achieved, and the insertion loss is reduced. The circuit structure consists of a resistor R1 series connected with a capacitor C1 and inductor L1 in parallel, followed by a capacitor C2 and inductor L2 in parallel, and finally connected in series with a capacitor C3 and inductor L3. The analysis design equation is provided. The effects of different component values on circuit flatness and bandwidth are analyzed. According to this design method, a flat negative group delay circuit is designed and fabricated. The simulation and measurement results are basically consistent. It has good flat negative group delay characteristics, with a group delay fluctuation of 3%, a group delay value of −1.02 ns, and an insertion loss of 7 dB. The feasibility of the design method is verified.

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Metadaten
Titel
A Novel Flat Broadband Passive Circuit with Negative Group Delay
verfasst von
Aixia Yuan
Niannan Chang
Junzheng Liu
Yuwei Meng
Publikationsdatum
06.09.2024
Verlag
Springer US
Erschienen in
Circuits, Systems, and Signal Processing / Ausgabe 12/2024
Print ISSN: 0278-081X
Elektronische ISSN: 1531-5878
DOI
https://doi.org/10.1007/s00034-024-02844-6