Automated method for passive filters design based on evolutionary computations and Monte Carlo analysis

This paper describes the heuristic technique of analog filters design. After desired frequency response definition for a filter, the evolutionary system searches for adequate connections for its circuit. The circuit is constructed with the use of elementary blocks which contain two elements (resistance and reactance). The final values for all elements of the filter are searched locally by means of Monte Carlo analysis. The proposed solution can be especially suitable to special filters designing, i.e. these ones, for which amplitude responses have not typical shapes.