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Chin. Phys. B, 2020, Vol. 29(4): 040502    DOI: 10.1088/1674-1056/ab75d6
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Nonlinear continuous bi-inductance electrical line with dissipative elements: Dynamics of the low frequency modulated waves

S M Ngounou1,2, F B Pelap1
1 Unité de Recherche de Mécanique et de Modélisation des Systèmes Physiques(UR-2 MSP), Faculté des Sciences, Université de Dschang, BP 69 Dschang, Cameroun;
2 Unité de Recherche de Matière Condensée d'Electronique et de Traitement du Signal(UR-MACETS), Faculté des Sciences, Université de Dschang, BP 67 Dschang, Cameroun
Abstract  The dynamics of modulated waves in a nonlinear bi-inductance transmission line with dissipative elements are examined. We show the existence of two frequency modes and carry out intensive investigations on the low frequency mode. Thanks to the multiple scales method, the behavior of these waves is investigated and the dissipative effects are analyzed. It appears that the dissipation coefficient increases with the carrier wave frequency. In the continuous approximation, we derive that the propagation of these waves is governed by the complex Ginzburg-Landau equation instead of the Korteweg-de-Vries equation as previously established. Asymptotic studies of the dynamics of plane waves in the line reveal the existence of three additional regions in the dispersion curve where the modulational phenomenon is observed. In the low frequency mode, we demonstrate that the network allows the propagation of dark and bright solitons. Numerical findings are in perfect agreement with the analytical predictions.
Keywords:  dissipative bi-inductance network      low frequency mode      continuous approximation      complex Ginzburg-Landau equation  
Received:  01 January 2020      Revised:  22 January 2020      Accepted manuscript online: 
PACS:  05.45.-a (Nonlinear dynamics and chaos)  
  05.45.Yv (Solitons)  
Corresponding Authors:  F B Pelap     E-mail:  fbpelap@yahoo.fr,francois.pelap@univ-dschang.org

Cite this article: 

S M Ngounou, F B Pelap Nonlinear continuous bi-inductance electrical line with dissipative elements: Dynamics of the low frequency modulated waves 2020 Chin. Phys. B 29 040502

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