Prediction of Scattered Field from Linearly Loaded Dipole Antenna Using Fuzzy Inference

In this paper, our fuzzy-based approach is used to predict scattered field from linearly loaded dipole antenna. At first, knowledge bases of diameter for unloaded scattering dipole antenna and impedance loading for thin scattering dipole antenna are separately extracted as very simple curves. In extracting these knowledge bases, the behavior of scattering dipole antenna is well approximated to the behavior of single transmitting dipole antenna. Then using concept of special membership functions, two knowledge bases are combined so that the spatial knowledge base of scattering dipole antenna including diameter and impedance loading effects is extracted. Finally, comparing fuzzy modeling results with method of moments, MoM shows an excellent agreement. Moreover, the execution time is considerably reduced.