This paper presents the design of a 3D-printed flat graded-index lens based on ray optics. The lens is comprised of several concentric dielectric rings with bespoke relative permittivities for transforming spherical waves into plane waves. 3D-printing was used to fabricate this lens with graded and tailored dielectric properties in a single process. The 3D-printed flat lens is low-cost and light-weight, but provides broadband and high gain performance. Measurement results show that the realised gain of the lens is 8 to 10 dB over the frequency band ranging from 12 to 18 GHz.
- Mechanical, Electrical and Manufacturing Engineering
Published in2015 Antennas and Propagation Conference (LAPC2015)
CitationZHANG, S. ...et al., 2015. 3D-printed flat lens for microwave applications. Presented at the Antennas and Propagation Conference (LAPC2015), Loughborough, 2-3rd Nov.
VersionAM (Accepted Manuscript)
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LocationLoughborough, United Kingdom