Composite materials for microwave devices using additive manufacturing. Issue 10 (1st May 2016)

• Record Type: Journal Article
• Authors: Bukhari, S.S.; Whittow, W.G.; Zhang, S.; Vardaxoglou, J.C.
• Is Part Of: Electronics letters. Volume 52:Issue 10(2016)
• Page Start: 832
• Page End: 833
• Publication Date: 2016-05-01
• Subjects: composite materials -- three‐dimensional printing -- rapid prototyping (industrial) -- microwave devices -- microstrip antennas -- permittivity; composite materials -- microwave devices -- additive manufacturing -- patch antennas -- dielectric constants -- relative permittivity; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2016.0078
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : Additive manufacturing has been combined with commercially available RF materials to synthesise composite materials whose relative permittivity can be controlled. A design equation for predicting the effective permittivity of these composite materials has also been presented. The relative permittivity of the composite materials was measured by fabricating patch antennas using these materials as the substrate. It has been demonstrated that by using Taconic, polyactic acid (PLA) and air, three materials with different dielectric constants, a large and nearly continuous range of relative permittivity values, from 1.47 to 6.00, can be realised.