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2008-10-16
A Fuzzy Model for Computing Back-Scattering Response from Linearly Loaded Dipole Antenna in the Frequency Domain
By
Progress In Electromagnetics Research, Vol. 86, 229-242, 2008
Abstract
This study includes three parts: First is fuzzy modeling of scattered field from unloaded dipole antenna. In second step a fuzzy model for scattered field from a linearly loaded thin dipole antenna is introduced. In both parts, knowledge bases of diameter and load impedance are separately extracted and saved as very simple curves. It is shown that the behavior of scattering dipole antenna is well approximated with the single transmitting dipole antenna obtained in our previous study. In the third step, using the concept of spatial membership functions, two obtained knowledge bases are combined so that the spatial knowledge base including simultaneous effects of diameter and load impedance is extracted. As a result, these spatial knowledge base as well as the behavior of single transmitting dipole antenna are used instead of time consuming and repetitive computations in accurate methods. With the use of this spatial knowledge and behavior of single transmitting dipole antenna, the scattered field from dipole antenna for any load impedance and diameter is predicted. Comparing the predicted results with accurate ones shows an excellent agreement. Moreover the computation time is considerably reduced.
Citation
Saeed Reza Ostadzadeh Majid Tayarani Mohammad Soleimani , "A Fuzzy Model for Computing Back-Scattering Response from Linearly Loaded Dipole Antenna in the Frequency Domain," Progress In Electromagnetics Research, Vol. 86, 229-242, 2008.
doi:10.2528/PIER08081301
http://www.jpier.org/PIER/pier.php?paper=08081301
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