SYNTHESIS OF CONCENTRIC CIRCULAR ARRAY ANTENNA THINNING USING ROUND & PUSH TO LIMIT BINARY EVOLUTIONARY PROGRAMMING

[ 31 Dec 2020 | vol. 13 | no. 4 | pp. 33-44 ]

About Authors:

Meenakshi L Rathod1*, Meera A2 and Manoj Kumar Singh3
-1Dept.of E&C Engg., Dr. Ambedkar Institute of Technology, Bangalore, India
-2Dept. of E&C Engg., B.M.S.College of Engineering, Bangalore, India
-3Manuro Tech.Research Pvt. Ltd., Bangalore, India

Abstract:

In this work, the desired radiation pattern is achieved by the use of thinning concept which reduces the side lobe level and first null radiation bandwidth of concentric circular array antenna. The objective of minimizing the number of elements of array to reduce the price has been optimized using evolutionary strategy. The proposed method is carried out using a self-adaptive strategy of mutation along with round and push to limit form and to transform the solution from real domain to binary domain. The proposed method has been applied over two ring concentric circular array. This approach of transformation has shown to be better as compared to conventional sigmoid function transform approach. The advantages have been shown by performance comparison against the firefly method. The suggested method has not only achieved superior design characteristics but also without fail there is a faster convergence.

Keywords:

Circular Array Antenna, Thinning, Side Lobe Level, Half Power Beam Width, First Null Beam Width, Evolutionary Programming

 

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