Synthesis of Uniform Amplitude Focused Beam Arrays

An iterative procedure for the synthesis of uniform amplitude focused beam arrays is presented. Specifically, the goal is to optimize the locations of a fixed number of array elements with known excitations in order to synthesize narrow-beam low-sidelobe patterns. Any fixed elements excitations can be handled, although uniform amplitude and equiphase excitations are aimed because of their practical interest. Moreover, the method can be applied to both linear and planar arrays, and there is no restriction regarding the element patterns. On top of being easy to implement, the proposed procedure leads to solutions that either equal or outperform the ones found by previous approaches in various cases of interest.

[1]  Tommaso Isernia,et al.  OPTIMAL SYNTHESIS OF PHASE-ONLY RECONFIGURABLE LINEAR SPARSE ARRAYS HAVING UNIFORM-AMPLITUDE EXCITATIONS , 2012 .

[2]  Homayoon Oraizi,et al.  Nonuniformly Spaced Linear Array Design for the Specified Beamwidth/Sidelobe Level or Specified Directivity/Sidelobe Level with Coupling Consideration , 2008 .

[3]  Didier Auroux,et al.  Large Multibeam Array Antennas with Reduced Number of Active Chains , 2007 .

[4]  C.L. Dolph,et al.  A Current Distribution for Broadside Arrays Which Optimizes the Relationship between Beam Width and Side-Lobe Level , 1946, Proceedings of the IRE.

[5]  Lisa Turner,et al.  Applications of Second Order Cone Programming , 2012 .

[6]  Y. Rahmat-Samii,et al.  Advances in Particle Swarm Optimization for Antenna Designs: Real-Number, Binary, Single-Objective and Multiobjective Implementations , 2007, IEEE Transactions on Antennas and Propagation.

[7]  Gert Frølund Pedersen,et al.  7th European Conference on Antennas and Propagation (EuCAP) , 2013 .

[8]  Y. T. Lo,et al.  A study of space-tapered arrays , 1966 .

[9]  J. R. Mosig,et al.  Synthesis of Uniform Amplitude Focused Beam Arrays , 2012, IEEE Antennas and Wireless Propagation Letters.

[10]  T. Taylor.  Design of line-source antennas for narrow beamwidth and low side lobes , 1955 .

[11]  A. Rydberg,et al.  Synthesis of uniform amplitude unequally spaced antenna arrays using the differential evolution algorithm , 2003 .

[12]  C. Mangenot,et al.  Spatial density tapered sunflower antenna array , 2009, 2009 3rd European Conference on Antennas and Propagation.

[13]  Stephen P. Boyd,et al.  Antenna array pattern synthesis via convex optimization , 1997, IEEE Trans. Signal Process..

[14]  Tommaso Isernia,et al.  Deterministic Synthesis of Uniform Amplitude Sparse Arrays via New Density Taper Techniques , 2010, IEEE Transactions on Antennas and Propagation.

[15]  Robert E. Willeut.  Space Tapering of Linear and Planar Arrays , 1962 .

[16]  Benjamin Fuchs,et al.  Optimal Narrow Beam Low Sidelobe Synthesis for Arbitrary Arrays , 2010, IEEE Transactions on Antennas and Propagation.

[17]  R. Willey,et al.  Space tapaering of linear and planar arrays , 1962 .