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Recent research efforts have contributed to the efficient design of advanced multibeam Direct Radiating Arrays (DRA), suitable for modern satellite communications. The bound constraints are set through the directivity pattern and the element types, while the proposed solutions are mainly based on aperiodic architectures of large element phased arrays. In the present work the challenge of Tx and Rx...
A procedure of non-uniformly spaced array design is presented. The resulting layouts fulfill demanding beamforming problems with aperture and element size limitations. Our approach is analyzed in two steps: The deterministic procedure, where the aperture size and the number of elements are defined, and the stochastic gradient procedure where the far-field shaping and the element local arrangement...
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