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Elements Space and Amplitude Perturbation Using Genetic Algorithm for Antenna Array Sidelobe Cancellation
Reza Abdolee, Tharek Abd Rahman, Vida Vakilan
Pages - 10 - 16     |    Revised - 15-04-2008     |    Published - 30-04-2008
Volume - 2   Issue - 2    |    Publication Date - April 2008  Table of Contents
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KEYWORDS
Genetic algorithm, antenna array, sidelobe cancellation
ABSTRACT
A simple and fast genetic algorithm (GA) developed to reduce the sidelobes in non-uniformly spaced linear antenna arrays. The proposed GA algorithm optimizes two vectors of variables to increase the Main lobe to Sidelobe power ratio (M/S) of array’s radiation pattern. The algorithm, in the first phase calculates the positions of the array elements and in the second phase, it manipulates the amplitude of excitation signals for each element. The simulations performed for 16 and 24 elements array structure. The results indicated that M/S improved in first phase from 13.2 to over 22.2dB meanwhile the half power beamwidth (HPBW) left almost unchanged. After element replacement, in the second phase, by using amplitude tapering further improvement up to 32dB was achieved. Also, the simulations shown that after element space perturbation, some antenna elements can be merged together without any performance degradation in radiation pattern in terms of gain and sidelobes level.
CITED BY (10)  
1 Oraizi, H., & Soleimani, H. (2015). Optimum pattern synthesis of non-uniform spherical arrays using the Euler rotation. IET Microwaves, Antennas & Propagation.
2 Chatterjee, S., Chatterjee, S., & Poddar, D. R. (2015). Synthesis of linear array using Taylor distribution and Particle Swarm Optimisation. International Journal of Electronics, 102(3), 514-528.
3 Liu Zhan, Shijin Qian, Wuren Bin, Xing Yong, & Yang Rui. (2014). Synthesis of multiple parabolic antenna side lobe suppression. Microwave Technology, 30 (1), 29-33.
4 Chatterjee, S., & Chatterjee, S. (2014). Pattern synthesis of centre fed linear array using Taylor one parameter distribution and restricted search Particle Swarm Optimization. Journal of Communications Technology and Electronics, 59(11), 1112-1127.
5 Orazi, H., Soleimani, H., & Azadkhah, R. (2014). Synthesis of linearly polarised patterns of conical arrays by the method of least square. IET Microwaves, Antennas & Propagation, 9(2), 185-191.
6 Bandyopadhyay, S., Mistri, H., Chattopadhyay, P., & Maji, B. (2013, September). Antenna array synthesis by implementing non-uniform amplitude using Tsukamoto fuzzy logic controller. In Advanced Electronic Systems (ICAES), 2013 International Conference on (pp. 19-23). IEEE.
7 Lin, Z., Yao, M., & Shen, X. (2012). Sidelobe reduction of the low profile multi-subarray antenna by genetic algorithm. AEU-International Journal of Electronics and Communications, 66(2), 133-139.
8 Bandyopadhyay, S. (2012). Antenna Array Synthesis Using The Optimization (Doctoral dissertation, National Institute of Technology, Durgapur).
9 Rupcic, S., Mandric, V., & Zagar, D. (2011). Reduction of sidelobes by nonuniform elements spacing of a spherical antenna array. Radioengineering, 20(1), 299-306.
10 Lin Zhiqiang, Yao Minli, & Shen Xiao Wei. (2011). Sub-array panel antenna side-lobe level of optimization based on genetic algorithms more [J]. Radio Science, 26 (2), 369-375.
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Mr. Reza Abdolee
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Mr. Tharek Abd Rahman
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Mr. Vida Vakilan
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