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Fuzzy Inference in Engineering Electromagnetics: An Application to Conventional and Angled Monopole-Antenna

Majid TAYARANI, Yoshio KAMI

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Summary :

The abilities of fuzzy inference methods in modeling of complicated systems are implemented to electromagnetics for the first time. The very popular and well known monopole antenna is chosen as a general example and a fast, simple and accurate fuzzy model for its input impedance is made by introducing a new point of view to impedance basic parameters. It is established that a surprisingly little number of input data points is sufficient to make a full model and also the system behavior (dominant rules) are saved as simple membership functions. The validity of the derived rules is confirmed through applying them to the case of thin-angled monopole antenna and comparing the results with the measured. Finally using the spatial membership function context, input impedance of thick-angled monopole antenna is predicted and a novel view point to conventional electromagnetic parameters is discussed to generalize the modeling method.

Publication
IEICE TRANSACTIONS on Electronics Vol.E83-C No.1 pp.85-97
Publication Date
2000/01/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Electromagnetic Theory

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