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Near-field synthesis of spatially-fed arrays for uniform field distribution in complex areas

Publicado en:2022 16th European Conference On Antennas And Propagation, Eucap 2022. - 2022-01-01 (), DOI:

Autores: Vaquero, Alvaro F; Pino, Marcos R; Arrebola, Manuel

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Resumen

In this work, a novel approach to define masks in near-field syntheses is presented. This technique improves the convergence of the algorithm when dealing with complex scenarios and uniform field requirement. First, the methodology of the synthesis process is fully described. Second, an example is presented to better understand the concept. The technique is combined with the generalized Intersection Approach for near-field, and a transmissive spatially-fed array is synthesized. The synthesis aims to reach uniform field distribution in a large and complex-shape area. A major challenge is to overcome the issues presented because of the electromagnetic propagation. The strategy followed in the synthesis reaches the desired uniform field distribution, reducing the starting ripple from more than 30 dB to almost 5 dB in an area larger than 14 meters.

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