Amplitude and Phase Synthesis of Linear Array for Sector Beams using Modified Harmony Search Differential Evolution Algorithm

International Journal of Electronics and Communication Engineering
© 2016 by SSRG - IJECE Journal
Volume 3 Issue 8
Year of Publication : 2016
Authors : Dr. Thota Vidhyavathi
How to Cite?

Dr. Thota Vidhyavathi, "Amplitude and Phase Synthesis of Linear Array for Sector Beams using Modified Harmony Search Differential Evolution Algorithm," SSRG International Journal of Electronics and Communication Engineering, vol. 3,  no. 8, pp. 20-27, 2016. Crossref,


The work in this area is limited particularly in beam shaping. In the process of pattern synthesis, intensive investigations are carried out to optimize desired beam shapes for small and large arrays. The main objective of this present work is to optimize the new amplitude and Phase distributions for desired flat top beams by using the combination of Harmony Search Algorithm and Differential Evolution Algorithm. It is found that the new algorithm provides great improvement in main lobe shaping control and side lobes which is present in the obtained radiation patterns. The optimized radiation patterns are more close to desired patterns and the numerical simulation results are presented.


 Pattern Synthesis, Beam-former, Desired Shaped Beam, Flat-top or Sector Beam Pattern, Side lobe level, Harmony Search Algorithm, Modified Differential Evolution Algorithm.


[1] I. A. Leonov, I. K. Formichev, “Monopulse Radar,” Norwood, Artech House, 1986.
[2] G. S. N. Raju, “Antennas and Wave Propagation,” Pearson Education, 2005.
[3] R. S. Elliot, “A new technique for shaped beam synthesis of equispaced arrays,” IEEE Transactions on Antennas and Propagation, Vol. AP-32, No. 10, October 1984.
[4] H. J. Orchard, R. S. Elliot, and G. J. Stern, “Optimizing the synthesis of shaped beam antenna patterns,” Proc. Inst. Elect. Eng., Vol. 132, PP. 63-68, February 1985.
[5] Y. Suzuki and T. Chiba, “An Algorithm for Pattern Synthesis Improvement,” IEEE Transactions on Antennas and Propagation, Vol. AP-34, No. 6, PP. 825-829, June 1986.
[6] A. Sabharwal, D. Avidor, L. Potter, “Sector beam synthesis for cellular systems using phased antenna arrays,” IEEE Transaction on Vehicular Technology, Vol. 49, No. 5, September 2000.
[7] A. Akdagli and K. Guney, “Shaped-Beam Pattern Synthesis of Equally and Unequally Spaced Linear Antenna Arrays Using a modified Tabu Search Algorithm,” Microwave and Optical Technology Letters, Vol. 36, No. 1, PP. 16-20, January 2003.
[8] D. J. Sadler, “Sector beam synthesis using antenna arrays,” The 2nd IEE/EURASIP Conference on DSP enabled radio, PP. 7, September 2005.
[9] A. Abdelaziz, and H. A. Kamal, “Sector synthesis of antenna array using Genetic algorithm,” Journal of theoretical and applied information technology, PP. 160-169.
[10] J. C. Bregains, F. Ares and E. Moreno, “Variation in the Bandwidths of Pattern-Quality Parameters and Maximum Embedded Impedance among the Solution to Shaped-Beam Synthesis Problems for Collinear Dipole Arrays,” IEEE Antennas and Wireless Propagation Letters, Vol. 2, PP. 267- 268, 2003.
[11] A. Ahmad, A. K. Behera, S. K. Mandal, G. K. Mahanti and R. Ghatak, “Synthesis of Flat top power pattern in linear antenna arrays using differential evolution algorithm,” International Journal of Electronics & Communication Technology (IJECT), Vol. 4, No. 1, March 2013.
[12] A. Mandal, H. Zafar, S. Das, and A. Vasilakos, “A Modified Differential Evolution Algorithm for Shaped Beam Linear Array Antenna Design,” Progress In Electromagnetics Research, Vol. 125, pp. 439-457, March 2012.
[13] F. Zhang, W. Jia, and M. Yao, “Linear Aperiodic Array Synthesis Using Differential Evolution Algorithm,” IEEE Trans. Antennas Propag., Vol. 12, no.7, pp. 797-800 July 2013.
[14] T. Vidhyavathi, G. S. N. Raju, “Generation of Ramp Patterns using Modified Differential Evolution Algorithm,” IOSR Journal of Electronics and Communication Engineering (IOSR–JECE), Vol. 9, No. 6, Ver. III, PP. 01-12, Nov-Dec. 2014.