NGD simple explanation and interpretation

Olivier Maurice (1) , Blaise Ravelo (2) , Sébastien Lalléchère (1)

1 AFSCET - Association Française de Science des Systèmes
2 NUIST - Nanjing University of Information Science and Technology

This article presents some proposals for interpreting negative group delay (NGD) phenomenon through electrical circuitry applications. The main idea comes from the normalization process which seems not innocuous. We first recall basic observations about NGD circuits before listing the fundamental properties of these circuits. Then, the way the normalization step influences the NGD procedure is questioned in terms of energy, concluding to its influence and effect on the NGD measurements. A final discussion is proposed regarding the potential prospects in relation with our explanation.

Mots clés: NGD theory

Domaines: Electromagnétisme; Physique [physics]

Olivier Maurice, Blaise Ravelo, Sébastien Lalléchère. NGD simple explanation and interpretation. 2021. ⟨hal-03426110⟩