Low Sidelobe Sparse Concentric Ring Arrays Optimization Using Modified GA

To minimize the peak sidelobe level (PSLL) of sparse concentric ring arrays, this paper presents an optimization method of grid ring radii of these arrays. The proposed method is based on modified real genetic algorithm (MGA); it makes grid ring radii as optimal variables and makes elements more reasonably distributed on the array aperture. Also, it can improve the PSLL of the sparse concentric ring arrays and can meanwhile control the computational cost. The simulated results confirming the efficiency and the robustness of the algorithm are provided at last.

[1]  Sakti Prasad Ghoshal,et al.  Thinned concentric circular array antenna synthesis using Particle Swarm Optimization with Constriction Factor and Inertia Weight Approach , 2011, 2011 International Conference on Recent Trends in Information Systems.

[2]  Urvinder Singh,et al.  Synthesis of thinned planar concentric circular antenna arrays using biogeography-based optimisation , 2012 .

[3]  Marco A. Panduro,et al.  Design of steerable concentric rings array using rotation properties and evolutionary optimization , 2010, Proceedings of the Fourth European Conference on Antennas and Propagation.

[4]  Swagatam Das,et al.  Synthesis of Thinned Planar Concentric Circular Antenna Arrays --- a Differential Evolutionary Approach , 2011 .

[5]  B. P. Kumar,et al.  Generalized analytical technique for the synthesis of unequally spaced arrays with linear, planar, cylindrical or spherical geometry , 2005, IEEE Transactions on Antennas and Propagation.

[6]  Sakti Prasad Ghoshal,et al.  Thinned concentric circular array antennas synthesis using genetic algorithm , 2011, 2011 IEEE Student Conference on Research and Development.

[7]  Fang Li,et al.  Reducing the Number of Elements in Linear and Planar Antenna Arrays With Sparseness Constrained Optimization , 2011, IEEE Transactions on Antennas and Propagation.

[8]  Zhaoshui He,et al.  A modified real GA for the sparse linear array synthesis with multiple constraints , 2006 .

[9]  Gan Quan,et al.  Design of Sparse Concentric Multi-circular Array Using Micro-Genetic Optimum Algorithm , 2009, 2009 WRI International Conference on Communications and Mobile Computing.

[10]  R. Haupt,et al.  Optimized Element Spacing for Low Sidelobe Concentric Ring Arrays , 2008, IEEE Transactions on Antennas and Propagation.