Practical fuzzy model approach for asymmetrical V-shaped microshield line by CADMFILT software

In this paper, practical fuzzy models depending on subtractive fuzzy clustering have been presented for asymmetrical V-shaped microshield line. In addition, a packet program has been introduced to run the proposed fuzzy models. In order to calculate the electrical parameters of each model, a linear equation system has been formed in each fuzzy model. Finally, the coefficients of each equation system have been found by means of fuzzy rules obtained by cluster extraction. The accuracy of each model has been confirmed by error analysis and the validity of the model results has been proven by comparing with the results of the quasi-static approach. At last, an object-oriented package program including theoretical solutions and fuzzy modeling has been presented. This computer-aided design program can be used for analysis, synthesis and modeling of transmission lines and microwave filters. It has been developed to calculate design processes with high speed and accuracy for researchers. It is expected that the introduced package program could be an alternative to commercial programs in the relevant field.