About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Agile Additive Manufacturing by Employing Breakthrough Functionalities
|
Presentation Title |
Design and Fabrication of High Dielectric GRIN Lens for a Directive Antenna Using Filled Voxel Additive Manufacturing Technique |
Author(s) |
Qianfang Zheng, Dmitry Isakov, Anna Radkovskaya, Kailun Xu, Ekaterina Shamonina, Sam-Baker Jones, Patrick S. Grant |
On-Site Speaker (Planned) |
Patrick S. Grant |
Abstract Scope |
Additive manufacturing (AM) has received extensive attention for fabricating materials with graded and/or anisotropic mechanical properties, typically by controlled porosity variations. But there are significant technological opportunities for devices with other spatial gradations, such as magnetic and dielectric properties. We present a novel ‘filled voxel’ AM technology to produce devices with a wide range of three-dimensional, spatially graded relative permittivity for the fabrication of microwave devices. We exemplify the approach through the design, fabrication and microwave characterization of a filled voxel high dielectric gradient refractive index (GRIN) lens based on combining fused deposition modelling AM and filled voxel assembly. The AM GRIN lens reduced the size of a highly directive antenna system by 50% and increased antenna directivity from 6.75 dB to 7.74 dB at 15 GHz. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Composites, Modeling and Simulation |