Optimization of thinned aperiodic linear phased arrays using genetic algorithms to reduce grating lobes during scanning
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- 1 December 2002
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 50 (12) , 1732-1742
- https://doi.org/10.1109/tap.2002.807947
Abstract
The scan volume of a thinned periodic linear phased array is proportional to the spacing between array elements. As the spacing between elements increases beyond a half wavelength, the scan range of the array will be significantly reduced due to the appearance of grating lobes. This paper investigates a method of creating thinned aperiodic linear phased arrays through the application of genetic algorithms that will suppress the grating lobes with increased steering angles. In addition, the genetic algorithm will place restrictions on the driving-point impedance of each element so that they are well behaved during scanning. A genetic algorithm approach is also introduced for the purpose of evolving an optimal set of matching networks. Finally, an efficient technique for evaluating the directivity of an aperiodic array of half-wave dipoles is developed for use in conjunction with genetic algorithms.Keywords
This publication has 11 references indexed in Scilit:
- A generic algorithm for training networks with artificial dendritic treesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Minimax-maxmini algorithm: a new approach to optimization of the thinned antenna arraysPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Element placement in thinned arrays using genetic algorithmsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Genetic algorithm optimization of antenna arrays with variable interelement spacingsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Simulated annealing in the design of thinned arrays having low sidelobe levelsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Closed-form representation for directivity of nonuniformlyspaced linear arrays with arbitrary element patternsElectronics Letters, 1999
- Stochastic optimization of linear sparse arraysIEEE Journal of Oceanic Engineering, 1999
- Genetic algorithm optimization applied to electromagnetics: a reviewIEEE Transactions on Antennas and Propagation, 1997
- An introduction to genetic algorithms for electromagneticsIEEE Antennas and Propagation Magazine, 1995
- Thinned arrays using genetic algorithmsIEEE Transactions on Antennas and Propagation, 1994