The key problem of improving the radiation performances or enabling additive functionalities of linear active electronically scanned arrays (AESAs), without increasing the number of radiating elements nor requiring a re-design of the radiators and/or the feeding network, is addressed by means of a suitably formulated Material-by-Design (MbD) approach. The quasi-conformal transformation optics (QCTO) technique and a customized source inversion (SI) strategy are jointly exploited to synthesize enhanced architectures, composed by a metamaterial lens and a tapered version of the original feeding network, able to match the radiation characteristics of significantly larger and/or different (from the original one) apertures. A set of representative benchmark results is reported to assess the effectiveness of the proposed MbD-designed architecture as well as to highlight the existing trade-off between achievable improvements and the complexity of the arising architectural solution.

Performance enhancement of linear active electronically scanned arrays by means of MbD-synthesized metalenses / Salucci, Marco; Oliveri, Giacomo; Anselmi, Nicola; Gottardi, Giorgio; Massa, Andrea. - In: JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS. - ISSN 0920-5071. - STAMPA. - 32:8(2018), pp. 927-955. [10.1080/09205071.2017.1410077]

Performance enhancement of linear active electronically scanned arrays by means of MbD-synthesized metalenses

Salucci, Marco;Oliveri, Giacomo;Anselmi, Nicola;Gottardi, Giorgio;Massa, Andrea
2018

Abstract

The key problem of improving the radiation performances or enabling additive functionalities of linear active electronically scanned arrays (AESAs), without increasing the number of radiating elements nor requiring a re-design of the radiators and/or the feeding network, is addressed by means of a suitably formulated Material-by-Design (MbD) approach. The quasi-conformal transformation optics (QCTO) technique and a customized source inversion (SI) strategy are jointly exploited to synthesize enhanced architectures, composed by a metamaterial lens and a tapered version of the original feeding network, able to match the radiation characteristics of significantly larger and/or different (from the original one) apertures. A set of representative benchmark results is reported to assess the effectiveness of the proposed MbD-designed architecture as well as to highlight the existing trade-off between achievable improvements and the complexity of the arising architectural solution.
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Salucci, Marco; Oliveri, Giacomo; Anselmi, Nicola; Gottardi, Giorgio; Massa, Andrea
Performance enhancement of linear active electronically scanned arrays by means of MbD-synthesized metalenses / Salucci, Marco; Oliveri, Giacomo; Anselmi, Nicola; Gottardi, Giorgio; Massa, Andrea. - In: JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS. - ISSN 0920-5071. - STAMPA. - 32:8(2018), pp. 927-955. [10.1080/09205071.2017.1410077]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/204081
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