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Polynomial approximated phase-only multiple sector beam patterns of linear antenna arrays with pre-fixed amplitude distribution using real-valued genetic algorithms |
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| Authors: | G K Mahanti A Chakrabarty S Das |
| Affiliation: | 1. Department of Electronics and Electrical Communication Engineering , Indian Institute of Technology , Kharagpur-721302, India gautammahanti@yahoo.com;3. Department of Electronics and Electrical Communication Engineering , Indian Institute of Technology , Kharagpur-721302, India;4. Advanced Technology Centre, Indian Institute of Technology , Kharagpur-721302, India |
| Abstract: | In this paper, the authors present second degree polynomial approximated phase-only synthesis of two different types of symmetric sector or flat-top beams of equally spaced linear antenna arrays of isotropic radiators with single pre-fixed cosine on a pedestal amplitude distributions using real-coded or real-valued genetic algorithm. This gives a regular shape to the phase distributions of the radiators. Regular shape phase distributions result in simpler feed network design compared to irregular shape phase distributions. A good agreement between desired and synthesized pattern using genetic algorithm (GA) is reported. |
| Keywords: | Array antenna Genetic algorithm Phased array Radiation pattern |