Wide-angle passive beam steering using 3D modified partial Maxwell fisheye lens
Date
2024-02-12
Journal Title
Journal ISSN
Volume Title
Publisher
Optics Express
Abstract
This study presents a broadband, 3D gradient index beam-steering lens, derived from an optimized modification of the partial Maxwell fisheye (PMFE) design, achieving a boresight gain of 23 dBi, -80° to 80° beam steering, and <10 dB gain roll-off. Utilizing fused filament fabrication (FFF) to realize its intricate geometry, the design employs a novel polar space-filling curve (PSFC) to establish a 3D varying, effective permittivity distribution. Rigorous simulations and experimental validation attest to its effectiveness, marking the first 3D implementation of a PMFE-type lens to our knowledge. This research underscores the feasibility and diverse applications of a low-cost, wide-angle passive beam-steering dielectric lens.
Description
This article was originally published in Optics Express. The version of record is available at: https://doi.org/10.1364/OE.515661. © 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement (https://doi.org/10.1364/OA_License_v2#VOR-OA)
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Citation
Theodore Fessaras, Kelvin Nicholson, Wiley Gong, and Mark Mirotznik, "Wide-angle passive beam steering using 3D modified partial Maxwell fisheye lens," Opt. Express 32, 6997-7011 (2024)