ICTACT Journal on Communication Technology

Debasis Mandal ¹, Ved Prakash Roy ¹, Anirban Chatterjee ², Anup Kumar Bhattacharjee ³

Affiliations
1 Department of Electronics and Communication Engineering, Bengal College of Engineering and Technology, IN
2 Department of Electronics and Communication Engineering, National Institute of Technology, Goa, IN
3 Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur, IN

Abstract

A pattern synthesis method based on Evolutionary Algorithm is presented to generate a dual radiation pattern from a planar array of isotropic antennas. The desired patterns are obtained by finding out optimum set of elements excitations. Flat-top and Pencil beams share a common optimum amplitude distribution among the array elements. Flat-top beam is generated by updating the zero phases with the optimum phases among the elements. 4 bit discrete amplitudes and 5 bit discrete phases have been taken to simplify the design of the feed network. Results clearly show the effectiveness of the proposed method.

Keywords

Planar Array, Dual-Pattern, Differential Evolution Algorithm (DE), Peak Sidelobe Level (Peak SLL), Shaped Beam.

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