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2019-12-23

Mask-Constrained Power Synthesis of Large and Arbitrary Arraysas a Few-Samples Global Optimization

By Giada M. Battaglia, Andrea Francesco Morabito, Gino Sorbello, and Tommaso Isernia
Progress In Electromagnetics Research C, Vol. 98, 69-81, 2020
doi:10.2528/PIERC19082904

Abstract

With reference to the mask-constrained power synthesis of shaped beams through fixed-geometry antenna arrays, we elaborate a recently proposed approach and introduce an innovative effective technique. In particular, the proposed formulation, which can take into account mutual coupling and mounting platform effects, relieson a nested optimization where the external global optimization acts on the field's phase shifts over a minimal number of `control points' located into the target region whereas the internal optimization acts instead on excitations. As the internal optimization of the ripple is shown to result in a Convex Programming problem and the external optimization deals with a reduced number of unknowns, a full control of the shaped beam's ripple and sidelobe level is achieved even in the case of arrays having a large size and aimed at generating large-footprint patterns. Examples involving comparisons with benchmark approaches as well as full-wave simulated realistic antennas are provided.

Citation


Giada M. Battaglia, Andrea Francesco Morabito, Gino Sorbello, and Tommaso Isernia, "Mask-Constrained Power Synthesis of Large and Arbitrary Arraysas a Few-Samples Global Optimization," Progress In Electromagnetics Research C, Vol. 98, 69-81, 2020.
doi:10.2528/PIERC19082904
http://jpier.org/PIERC/pier.php?paper=19082904

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