GA-Based Optimization of Irregular Subarray Layouts for Wideband Phased Arrays Design

The design of phased arrays generating low sidelobes and grating-lobes-free patterns over wide frequency bandwidths is addressed. The array structure is decomposed in subarrays with irregular polyomino tiles whose locations and orientations are optimized by means of a genetic algorithms-based approach. A set of representative results is reported and discussed to give some insights on the performance of the proposed approach also in comparison to state-of-the-art solutions.

[1]  Robert J. Mailloux,et al.  Irregular Polyomino-Shaped Subarrays for Space-Based Active Arrays , 2009 .

[2]  P. Rocca,et al.  Design of Subarrayed Linear and Planar Array Antennas With SLL Control Based on an Excitation Matching Approach , 2009, IEEE Transactions on Antennas and Propagation.

[3]  Ioan E. Lager,et al.  Sunflower Array Antenna with Adjustable Density Taper , 2009 .

[4]  Randy L. Haupt,et al.  Antenna Arrays: A Computational Approach , 2010 .

[5]  Tommaso Isernia,et al.  DIRECT RADIATING ARRAYS FOR SATELLITE COMMUNICATIONS VIA APERIODIC TILINGS , 2009 .

[6]  Yury V. Krivosheev,et al.  Grating lobe suppression in phased arrays composed of identical or similar subarrays , 2010, 2010 IEEE International Symposium on Phased Array Systems and Technology.

[7]  Robert J. Mailloux,et al.  Array aperture design using irregular polyomino subarrays , 2010, 2010 IEEE International Symposium on Phased Array Systems and Technology.

[8]  P. Rocca,et al.  Polyomino subarraying through genetic algorithms , 2012, Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation.

[9]  B. H. Gwee,et al.  Polyominoes tiling by a genetic algorithm , 1996, Comput. Optim. Appl..

[10]  D. Werner,et al.  Design of Broadband Planar Arrays Based on the Optimization of Aperiodic Tilings , 2008, IEEE Transactions on Antennas and Propagation.

[11]  V. Galdi,et al.  Radiation properties of planar antenna arrays based on certain categories of aperiodic tilings , 2005, IEEE Transactions on Antennas and Propagation.

[12]  Robert J. Mailloux,et al.  Phased Array Antenna Handbook , 1993 .

[13]  P. Rocca,et al.  Evolutionary optimization as applied to inverse scattering problems , 2009 .

[14]  P. Rocca,et al.  Innovative GA-based strategy for polyomino tiling in phased array design , 2013, 2013 7th European Conference on Antennas and Propagation (EuCAP).

[15]  M. S. Smith,et al.  Sequentially rotated arrays with reduced sidelobe levels , 1992 .

[16]  V.D. Agrawal.  Grating-lobe suppression in phased arrays by subarray rotation , 1978, Proceedings of the IEEE.