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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/22552

Title: 3D-printed planar graded index lenses
Authors: Zhang, Shiyu
Arya, Ravi
Pandey, Shaileshchandra
Vardaxoglou, J.C.
Whittow, W.G.
Mittra, Raj
Issue Date: 2016
Publisher: IET (© the authors)
Citation: ZHANG, S. ... et al., 2016. 3D-printed planar graded index lenses. IET Microwaves, Antennas & Propagation, 10 (13), pp.1411–1419
Abstract: We introduce two flat graded-index (GRIN) lens designs in this paper. First of these is a thick lens, which was designed and fabricated by using the 3D-printing technique. Second, a thin Dial-aDielectric (DaD) lens which uses state-of-the-art artificially engineered dielectric materials for design and for which we present only the simulated results, with plans to fabricate it in the future. Both designs overcome the difficulties faced in finding desired commercial off-the-shelf (COTS) materials, either for 3D-printing or for fabricating conventional GRIN lenses. The lenses comprise of several concentric dielectric rings with bespoke relative permittivities for transforming spherical waves into plane waves and vice versa. The 3D-printed thick flat lens is low-cost and light-weight, but provides broadband and high gain performance. Measurement results show that the realized gain of the thick lens is 9-11 dB over the frequency band of 12-18 GHz. The designed DaD lens has the desirable characteristics of low loss, low reflection and broadband properties.
Description: This is the colour version of the article. The final (black and white)version of the article was published as an open access article by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Sponsor: This work was supported in part by EPSRC Doctoral Prize Research Fellowship.
Version: Accepted for publication
DOI: 10.1049/iet-map.2016.0013
URI: https://dspace.lboro.ac.uk/2134/22552
Publisher Link: http://dx.doi.org/10.1049/iet-map.2016.0013
ISSN: 1751-8725
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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