The design of miniaturised linear arrays by using isotropic lenses with reduced complexity is addressed. The problem at hand is formulated as a global optimisation one, then solved by means of a computationally-efficient customisation of the system-by-design (SbD) paradigm suitably integrated with the quasi-conformal transformation optics method. To yield arbitrary transformation geometries with a limited set of degrees-of-freedom and to reduce the lens complexity, while guaranteeing the same radiation performance of a larger reference aperture, a spline-based description of the lens shape is adopted. Representative numerical results are reported to assess the effectiveness as well as the computational efficiency of the proposed SbD-based approach.

System-by-design method for efficient linear array miniaturisation through low-complexity isotropic lenses / Salucci, M.; Tenuti, L.; Gottardi, G.; Hannan, A.; Massa, A.. - In: ELECTRONICS LETTERS. - ISSN 0013-5194. - STAMPA. - 2019, 55:8(2019), pp. 433-434. [10.1049/el.2018.6653]

System-by-design method for efficient linear array miniaturisation through low-complexity isotropic lenses

Salucci, M.;Tenuti, L.;Gottardi, G.;Hannan, A.;Massa, A.
2019-01-01

Abstract

The design of miniaturised linear arrays by using isotropic lenses with reduced complexity is addressed. The problem at hand is formulated as a global optimisation one, then solved by means of a computationally-efficient customisation of the system-by-design (SbD) paradigm suitably integrated with the quasi-conformal transformation optics method. To yield arbitrary transformation geometries with a limited set of degrees-of-freedom and to reduce the lens complexity, while guaranteeing the same radiation performance of a larger reference aperture, a spline-based description of the lens shape is adopted. Representative numerical results are reported to assess the effectiveness as well as the computational efficiency of the proposed SbD-based approach.
2019
8
Salucci, M.; Tenuti, L.; Gottardi, G.; Hannan, A.; Massa, A.
System-by-design method for efficient linear array miniaturisation through low-complexity isotropic lenses / Salucci, M.; Tenuti, L.; Gottardi, G.; Hannan, A.; Massa, A.. - In: ELECTRONICS LETTERS. - ISSN 0013-5194. - STAMPA. - 2019, 55:8(2019), pp. 433-434. [10.1049/el.2018.6653]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/235934
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