volume | PIER Journals

Abstract

In this paper, the previously introduced fuzzy modeling method is used to model the input impedance of two coupled dipole antennas in the echelon form. The initial data of two coupled dipole antennas in the parallel and collinear form, which are required for the model, are obtained using the MoM (Method of Moments). Then, the knowledge of two coupled dipole antennas in the echelon form is easily predicted based on the knowledge of two coupled dipole antennas in the parallel and collinear form and the concept of spatial membership functions. Comparing the results of the proposed model with MoM shows an excellent agreement with a vanishingly short execution time comparing with MoM.

1. King, R. W. P., G. J. Fikioris, and R. B. Mack, Cylindrical Antennas and Arrays, Cambridge University Press, 2002.

2. Ali, M. and S. Sanyal, "FDTD analysis of dipole antenna as emi sensor," Progress In Electromagnetics Research, Vol. 69, 341-359, 2007.
doi:10.2528/PIER06122801

3. Petre, P. and T. K. Sakar, "Planar near-field to farfield transformation using an array of dipole probes," IEEE Transactions on Antennas and Propagation, Vol. 42, No. 4, 534-537, 1994.
doi:10.1109/8.286223

4. Ghosh, S. and A. Chakrabarty, "Estimation of equivalent circuit of loaded transmit-receive antenna system and its time domain studies," Journal of Electromagnetic Waves and Applications, Vol. 20, 89-103, 2006.
doi:10.1163/156939306775777314

5. Ghosh, S., A. Chakrabarty, and S. Sanyal, "Loaded wire antenna as EMI sensor," Progress In Electromagnetics Research, Vol. 54, 19-36, 2005.
doi:10.2528/PIER04080501

6. Harrington, R. F., Field Computation by Moment Methods, Macmillan, 1968.

7. Papakanellos, P. J., "Accuracy and complexity assessment of subdomain moment methods for arrays of thin-wire loops," Progress In Electromagnetics Research, Vol. 78, 1-15, 2008.
doi:10.2528/PIER07071704

8. Papakanellos, P. J., I. I. Heretakis, and P. K. Varlamos, "A combined method of auxiliary sources-reaction matching approach for analyzing moderately large-Scaled arrays of cylindrical dipoles," Progress In Electromagnetics Research, Vol. 59, 51-67, 2006.
doi:10.2528/PIER05091501

9. Sel¸cuk, A. and B. Saka, "A general method for the analysis of curved wire antennas," Journal of Electromagnetic Waves and Applications, Vol. 21, No. 2, 175-188, 2007.
doi:10.1163/156939307779378835

10. Xi, Y. P.D. G. Fang, Y. X. Sun, and Y. L. Chow, "Mutual coupling in a linear dipole array of finite size," IEE Proc.- Microwave. Antennas Propagation, Vol. 152, No. 5, 2005.

11. Yuan, T., L.-W. Li, and M.-S. Leong, "Efficient analysis and design of finite phased arrays of printed dipoles using fast algorithm: some studies," J. of Electromagnetic Waves and Applications, Vol. 21, No. 6, 737-754, 2007.
doi:10.1163/156939307780749057

12. Kondt, R. W., K. Sertel, Topsakal, and J. L. Volakis, "Array decomposition method for the accurate analysis of finite arrays," IEEE Transaction on Antennas Propagation, Vol. 51, No. 6, 588-592, 2003.

13. Ayestaran, G., F. Las-Heras, and J. A. Martinez, "Non uniform-antenna array synthesis using neural networks," J. of Electromagnetic. Waves and Application, Vol. 21, No. 8, 1001-1011, 2007.

14. Tayarani, M. and Y. Kami, "Fuzzy inference in engineering electromagnetic: an application to conventional and angled monopoleantenna," IEICE Transactions on Electronics, Vol. E83-C, No. 1, 85-97, 2000.

15. Shouraki, S. B. and Honda, "Fuzzy prediction: a method for adaptation," 14th Fuzzy Symposium, 317-320, 1998.

16. Takagi, T. and M. Sugeno, "Fuzzy identification of systems and its application to modeling and control," IEEE Trans. on Systems, Vol. SMC-15, No. 1, 1985.

17. Shouraki, S. B. and Honda, "Outlines of a soft computer for brain simulation," 5th International Conference on Soft Computing and Information/Intelligent Systems (IIZUKA'98), 545-550, 1998.

Dr. Saeed Reza Ostadzadeh

Dr. Mohammad Soleimani

Dr. Majid Tayarani