论文信息 - 3D-printed graded index lens for RF applications

3D-printed graded index lens for RF applications

This paper presents a novel 3D-printed low-cost, light weight, broadband and high gain planar graded index (GRIN) lens. The GRIN lens was designed to transform spherical wavefronts into planar wavefronts which can be used for antenna gain enhancement. Fused deposition modelling 3D-printing was used to fabricate the lens in a single process with bespoke radially varying relative permittivity. Measured results showed that the lens had a realised gain of 16 to 24 dBi over the Ku-band frequency range from 12 to 18 GHz when fed by a conical horn.

R. Mittra | W. Whittow | Y. Vardaxoglou | Shiyu Zhang

[1] W. Weir. Automatic measurement of complex dielectric constant and permeability at microwave frequencies , 1974 .

[2] A. Petosa,et al. Design and performance of a perforated dielectric fresnel lens , 2003 .

[3] M. R. Chaharmir,et al. A Wideband Transmitarray Using Dual-Resonant Double Square Rings , 2010, IEEE Transactions on Antennas and Propagation.

[4] Wei Hong,et al. A zoned two-layer flat lens design , 2011, 2011 International Workshop on Antenna Technology (iWAT).

[5] Y. Hao,et al. A broadband zone plate lens from transformation optics. , 2011, Optics express.

[6] Giorgio Savini,et al. A new artificial material approach for flat THz frequency lenses. , 2012, Optics express.

[7] William G. Whittow,et al. Novel 3D printed synthetic dielectric substrates , 2015 .