An Effective Two-Step Approach to the Synthesis of Uniform Amplitude Linear Arrays

In this letter, with a minimum element spacing constraint, an effective two-step approach to the synthesis of uniform amplitude linear arrays, which aims at minimizing the peak-sidelobe level (PSLL), is developed. An analytical method is adopted to achieve a local optimum array at first, then an iterative local-adjust procedure is developed to adjust the element positions in expectation of reaching a lower PSLL. Several numerical results compared to global optimum approaches confirm the effectiveness and outperformance of the new proposed method.

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

[2]  Nima Razavi-Ghods,et al.  A Global-Local Synthesis Approach for Large Non-Regular Arrays , 2014, IEEE Transactions on Antennas and Propagation.

[3]  J. N. Sahalos,et al.  Sparse Linear Array Synthesis With Multiple Constraints Using Differential Evolution With Strategy Adaptation , 2011, IEEE Antennas and Wireless Propagation Letters.

[4]  D. Pinchera,et al.  A Generalized Hybrid Approach for the Synthesis of Uniform Amplitude Pencil Beam Ring-Arrays , 2012, IEEE Transactions on Antennas and Propagation.

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

[6]  Quanyuan Feng,et al.  Synthesis of Unequally Spaced Antenna Arrays by Using Differential Evolution , 2010, IEEE Transactions on Antennas and Propagation.

[7]  T. Milligan,et al.  Space-tapered circular (ring) array , 2004, IEEE Antennas and Propagation Magazine.

[8]  Fenggan Zhang,et al.  Linear Aperiodic Array Synthesis Using Differential Evolution Algorithm , 2013, IEEE Antennas and Wireless Propagation Letters.

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

[10]  Qiang Guo,et al.  Synthesis of Uniformly Excited Concentric Ring Arrays Using the Improved Integer GA , 2016, IEEE Antennas and Wireless Propagation Letters.

[11]  Piero Angeletti,et al.  Array Antennas With Jointly Optimized Elements Positions and Dimensions Part I: Linear Arrays , 2014, IEEE Transactions on Antennas and Propagation.

[12]  Piero Angeletti,et al.  Array Antennas With Jointly Optimized Elements Positions and Dimensions Part II: Planar Circular Arrays , 2014, IEEE Transactions on Antennas and Propagation.

[13]  Yi Jiang,et al.  An Innovative Strategy for Synthesis of Uniformly Weighted Circular Aperture Antenna Array Based on the Weighting Density Method , 2013, IEEE Antennas and Wireless Propagation Letters.

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

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

[16]  Z. Yu,et al.  Linear Aperiodic Array Synthesis Using an Improved Genetic Algorithm , 2012, IEEE Transactions on Antennas and Propagation.

[17]  B. P. Kumar,et al.  Design of unequally spaced arrays for performance improvement , 1999 .

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