3-D Printable Metal-Dielectric Metasurface for Risley Prism-Based Beam-Steering Antennas - Publikacja - MOST Wiedzy

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3-D Printable Metal-Dielectric Metasurface for Risley Prism-Based Beam-Steering Antennas

Abstrakt

A 3-D printable, planar, metal-dielectric metasurface-based, 2-D beam-steering system for aperture-type antennas is presented in this paper. This beam steering system, also known as the near-field meta-steering system, comprises two fully passive phase-gradient metasurfaces placed in the antenna’s nearfield region to steer the radiation beam. To address the non-uniform electric field phase of the aperture antenna, phase correction is also incorporated into the bottom metasurface placed on top of the antenna aperture in its near-field to enhance the far-field radiation of the antenna. Near-field phase transformation and phased array antenna theory concepts are applied to design the proposed metasurfaces. Two types of metal-dielectric unit cells are implemented to provide a phase range of 360◦ . The height of each metasurface is only 6.25 mm (0.25λ0), and the height of the whole system is only 1.56 λ0 at 12 GHz. The proposed beam steering system with a resonant cavity antenna can steer the beam to a maximum of ±44◦ in the elevation plane and 360◦ in the azimuth plane with only a 1.4 dB deviation in directivity over the full steering range.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
IEEE Access nr 12, strony 165143 - 165154,
ISSN: 2169-3536
Język:
angielski
Rok wydania:
2024
Opis bibliograficzny:
Ali M. Y., Lalbakhsh A., Singh K., Kozieł S., Gołuński Ł.: 3-D Printable Metal-Dielectric Metasurface for Risley Prism-Based Beam-Steering Antennas// IEEE Access -Vol. 12, (2024), s.165143-165154
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1109/access.2024.3493426
Źródła finansowania:
  • Publikacja bezkosztowa
Weryfikacja:
Politechnika Gdańska

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