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IEICE TRANSACTIONS on Electronics

Qualitative Analysis in Engineering Electromagnetics: An Application to General Transmission Lines

Majid TAYARANI, Yoshio KAMI

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Summary :

Fuzzy inference abilities were implemented to electromagnetic problems for the first time by the authors. After very successful results of applying the developed fuzzy modeling method to input impedance of a general monopole antenna, in this paper classifying the engineering electromagnetic problems simply, we apply the abilities of the proposed fuzzy inference method to make a qualitative model for transmission lines as a general example for a certain category of problems. The proposed approach starts from observing the problem through the window of human direct understandings and uses some parameters (as calculation base) evaluated basic for modeling process. It is shown that because of using this novel view point, a very simple fuzzy system based on new parameters may model the behavior of a transmission line in general form. The knowledge of each variable can be extracted and saved as simple curves individually, through continuing to make several models considering the desired variable as parameter. Finally, it is shown that the proposed method works even in highly nonuniform transmission line cases without changing in structure and complexity.

Publication
IEICE TRANSACTIONS on Electronics Vol.E84-C No.3 pp.364-375
Publication Date
2001/03/01
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Electromagnetic Theory

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