Alumina 3-D Printed Wide-Angle Partial Maxwell Fish-Eye Lens Antenna

Abstract
This letter presents a wide-angle partial Maxwell Fish-Eye (PMFE) lens antenna for W-band millimeter-wave communication, which is realized by alumina 3-D printing using lithography-based ceramic manufacturing. To achieve the targeted permittivity profile, in addition to structural measures, the solid-state porosity of alumina, and hence its material permittivity, is controlled by tuning the sintering temperature. The relative permittivity of bulk alumina was set at 5.13 with a sintering temperature of 1350 °C instead of being 9.2 with a sintering temperature of 1650 °C. The fabricated 3-D lens with a diameter of 33.7 mm achieves a peak realized gain of 25 dBi at a frequency of 109.5 GHz at the boresight, demonstrating a field-of-view of ±42° with a planar lens surface.
Description
Citation
IEEE Antennas and Wireless Propagation Letters. 2024, vol. 23, issue 7, p. 2051-2055.
https://ieeexplore.ieee.org/abstract/document/10475423
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en
Study field
Comittee
Date of acceptance
Defence
Result of defence
Document licence
Creative Commons Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
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