Abstract
ABSTRACTThis letter presents dielectric properties of air filled synthetic substrates fabricated in a single process using three‐dimensional printing. The permittivity and loss tangent of a given sized substrate can be changed by controlling the air infill volume fraction. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2344–2346, 2015
Highlights
Additive manufacturing (AM) technology constructs successive layers of materials to create three-dimensional (3D) objects
The waffle squares in sample B were smaller than sample C and, sample B had higher polylactic acid (PLA) volume fraction (VF)
The measured results showed that sample F had a lower permittivity and loss tangent value than sample E, due to its lower PLA volume fraction
Summary
Additive manufacturing (AM) technology constructs successive layers of materials to create three-dimensional (3D) objects. Using 3D printing in dielectric materials, fabrication allows engineers to customize the substrate to desired dimensions, for instance, conformal antenna applications. The dielectric properties of materials such as permittivity and loss factor can be tailored with different air to PLA percentage ratios. The 3D printed substrates were constructed of three parts: top lid, bottom base, and the nonsolid infill pattern in the middle.
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