Additive manufactured dielectric Gutman lens

O. Bjorkqvist; O. Zetterstrom; O. Quevedo-Teruel

Additive manufactured dielectric Gutman lens

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Author(s): O. Bjorkqvist¹ ; O. Zetterstrom¹ ; O. Quevedo-Teruel¹
- Affiliations: 1: KTH Royal Institute of Technology , SE-100 44 Stockholm , Sweden
Source: Volume 55, Issue 25, 12 December 2019, p. 1318 – 1320
DOI: 10.1049/el.2019.2483 , Print ISSN 0013-5194, Online ISSN 1350-911X

This is an open access article published by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)

Received 22/07/2019, Published 22/10/2019

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In this Letter, the design of a 3D printed fully dielectric Gutman lens is presented. The authors demonstrate the feasibility of using highly accessible and cheap additive manufacturing technology to produce a compact and high performing antenna lens. The lens is designed to operate at $K u$ band and utilises a flat feed surface that approximates the focal sphere. The flat feed surface allows for beam steering that requires only translational movement of the feed. The lens has a measured realised gain of 20 dBi with 3 dB scan loss at $± 45 °$ . The lens finds applications in systems that require high gain antennas, such as the new generation of satellite and 5G communications and radar technology.

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