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This elaboration proposes and investigates a new cost function used in filter tuning algorithm and coupling matrix synthesis. The cost function is defined based on the Hausdorff distance between the template sets (the sets of zeros and poles of template filter reflection and transmission characteristics) and the sets of zeros and poles described from optimized characteristics of a filter. The experiments...
This paper describes a method of microwave filter tuning. The main goal of this research is to take advantage of fuzzy logic and build effective, adaptive approximator - a neuro-fuzzy system. The system was trained with use of samples that contain information about scattering characteristics and corresponding tuning screw deviations. Experiments were performed on four different filters which have...
This paper describes optimization methods applied in tuning of microwave filter assumed as ldquoblack-boxrdquo device. In this case any type of modeling is not required. Based on measured S-parameter data, without time consuming sensitivity analysis, only direct search and heuristics methods based on artificial intelligence can be used. Proper combination of such methods can be successfully applied...
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