volume | PIER Journals

Abstract

This paper investigates the circuit theory of elementary passive topology exhibiting reconfigurable positive/negative delay (RPND) effect. This novel evaluated framework enables identification of the first-order L-topology constituted by RC-network operating under RPND effect. The investigated passive L-cell can operate in both negative and positive group delay (NGD or PGD) mode depending on the RC-network parameter. After establishing the NGD existence condition, the design equations versus the RPND effect including the target parameter values are formulated. To validate the theory, an RC-circuit representing a RPND Proof-of-Concept (PoC) was designed, implemented and tested especially in the time-domain by verifying the time-advance signature corresponding to the NGD operation mode. By tuning a PoC resistor, experimentation of pulse and arbitrary waveform signals confirm the feasibility to observe RPND reconfigurability. In the NGD mode, it is observed that outputs in time-advance of their own inputs about -3 ms. The RPND circuit is particularly useful for adjusting delay effect and signal synchronization in the communication system.

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Dr. Runtao Song

Dr. Sonia Moussa

Mr. Nathan B. Gurgel

Dr. Nicolas Waldhoff

Dr. Ali Hamada Damien Fakra

Prof. Dmitry Kholodnyak

Dr. Mathieu Guerin

Dr. Glauco Fontgalland

Professor Fayu Wan

Prof. Blaise Ravelo