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Experimental validation of the RC-interconnect effect equalization with negative group delay active circuit in planar hybrid technology

Blaise Ravelo 1 André Pérennec 1 Marc Le Roy 1, *
* Corresponding author
1 Lab-STICC_UBO_MOM_DIM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance, UBO - Université de Brest
Abstract : This paper deals with the experimental validation of equalization technique of RC-line degradations based on a negative group delay (NGD) active circuit. The feasibility of this method is illustrated by brief theoretical recalls. Formulas permitting the synthesis of this NGD circuit according to the RC-line parameters are proposed. Then, the analytical predictions are verified by experimental results, which also provide evidence the efficacy of the technique for prototypes in planar hybrid technology. So, for an input square-wave pulse of 25 Msym/s-rate, the rise-time and the propagation delay of the regarded RC-circuit were respectively reduced by 71.4% and 86.4%. As expected, the recovered measured signal shows enhancement of both the raising and trailing edges. Finally, the main benefits provided by this technique compared to the use of repeater are discussed.
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https://hal.univ-brest.fr/hal-00468117
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Blaise Ravelo, André Pérennec, Marc Le Roy. Experimental validation of the RC-interconnect effect equalization with negative group delay active circuit in planar hybrid technology. 13th IEEE Workshop on Signal Propagation on Interconnects (SPI'09), May 2009, strasbourg, France. pp.1-4, ⟨10.1109/SPI.2009.5089836⟩. ⟨hal-00468117⟩

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