2001 Volume 70 Issue 9 Pages 2568-2577
Adding dissipative elements to a discrete biinductance transmission line which admits both low frequency (LF) and high frequency (HF) modes, dynamics of a weakly nonlinear modulated wave is investigated theoretically and numerically. In the semidiscrete approximation using a proposed decoupling ansatz for the voltage of the two different cells, it is shown that the original differential-difference equation for this transmission line can be reduced to the complex Ginzburg-Landau (CGL) equation. The modulational instability criterion for sinusoïdal waves has been recovered. Furthermore, numerical simulations show that the theoretical predictions are well reproduced.
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