Abstract
Nonlinear dispersive wave propagation along a transmission line periodically loaded with varactor diodes is examined. Assuming small nonlinearity and weak dispersion the theoretical description may be reduced to the wellknown KdV equation. Accordingly, the presented measurements show how a sine-wave breaks up into a number of spikes and then recurs which therefore may be interpreted on the basis of soliton theory: Experimental results on soliton development and interaction are given and the recurrence phenomena of the Fermi-Pasta-Ulam problem are investigated. The measurements are found to be in good agreement with theoretical and numerical evaluations.
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