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Pattern Synthesis using Genetic Algorithm for Low Sidelobe Levels

International Journal of Computer Applications
© 2011 by IJCA Journal
Number 1 - Article 1
Year of Publication: 2011
V. Rajya Lakshmi
G. S. N. Raju

Rajya V Lakshmi and G S N Raju. Article:Pattern Synthesis using Genetic Algorithm for Low Sidelobe Levels. International Journal of Computer Applications 31(4):53-57, October 2011. Full text available. BibTeX

	author = {V. Rajya Lakshmi and G. S. N. Raju},
	title = {Article:Pattern Synthesis using Genetic Algorithm for Low Sidelobe Levels},
	journal = {International Journal of Computer Applications},
	year = {2011},
	volume = {31},
	number = {4},
	pages = {53-57},
	month = {October},
	note = {Full text available}


For pattern synthesis of arrays, it is required to find out appropriate weighting vectors to yield a desired radiation pattern. It is well known that several methods for above purpose are available in literature. It is an established fact that when an attempt is made to reduce the first sidelobe level, the beamwidth increases. However, it is of interest in the present work to synthesize an array for a specified first side lobe level without deteriorating the beamwidth. For this purpose, well known analytical technique for array synthesis to control side lobe level, Dolph Chebyshev method is used with the application of WIPL-D Microwave EM software, and the excitation levels are found out. They are also found out using Genetic Algorithm (GA). The weighting vectors are compared in the form of a Table. Using these vectors, the patterns are generated for arrays of different elements. The resultant patterns are compared for the above methods.


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