Optimization of ultrashort pulse duration with usage of genetic algorithms by criteria of peak voltage maximization in PCB bus

Abstract

Importance of the genetic algorithms (GA) usage in the investigation of an ultrashort pulse peak voltage in multiconductor structures of printed circuit boards (PCB) is highlighted. Trapezoidal ultrashort pulse propagation along the conductors of a real PCB multiconductor bus was simulated. Using GA an optimization of the whole ultrashort pulse duration and separately of the rise, top and fall durations was made by a criterion of the peak voltage maximization in the PCB bus. A voltage maximum which is revealed with the whole ultrashort pulse duration variation by 16% exceeds the steady state level when the whole duration is near 0.13 ns. A voltage maximum exceeding the steady state level by 36% is revealed and localized by using the variation of ultrashort rise, top and fall durations. The maximum crosstalk value of 24% of the steady state level is observed for this case. For the last voltage and crosstalk maximums, the whole ultrashort pulse duration is near 1 ns. A good replicability of results is shown.