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Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Apr;83(4 Pt 2):046608. Epub 2011 Apr 29.

Quasidiscrete microwave solitons in a split-ring-resonator-based left-handed coplanar waveguide.

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  • 1Department of Physics, University of Athens, Panepistimiopolis, Zografos, Athens 15784, Greece.


We study the propagation of quasidiscrete microwave solitons in a nonlinear left-handed coplanar waveguide coupled with split-ring resonators. By considering the relevant transmission line analog, we derive a nonlinear lattice model which is studied analytically by means of a quasidiscrete approximation. We derive a nonlinear Schrödinger equation, and find that the system supports bright envelope soliton solutions in a relatively wide subinterval of the left-handed frequency band. We perform systematic numerical simulations, in the framework of the nonlinear lattice model, to study the propagation properties of the quasidiscrete microwave solitons. Our numerical findings are in good agreement with the analytical predictions, and suggest that the predicted structures are quite robust and may be observed in experiments.

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