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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 proposes a new method of microwave filter tuning. It consists in building a multidimensional approximator which maps filter reflection characteristic to the vector containing deviations of tuning element positions. In the concept, it is assumed that relation between positions of tuning elements and filter reflection characteristic can be modeled by the sum of polynomial functions. Each...
This paper describes a method of microwave filter tuning. The main goal of this research is to build an adaptive 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. The results have been then compared with previous works which use artificial...
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...
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