Composite Materials Development for Fused Filament Fabrication of RF Systems


  • Paul Parsons DeLUX Advanced Manufacturing Newark, DE, 19713, USA
  • Zachary Larimore DeLUX Advanced Manufacturing Newark, DE, 19713, USA
  • Mark Mirotznik Department of Electrical Engineering University of Delaware Newark, DE, 19716, USA
  • Gregory Mitchell Antennas and Technology Integration Branch U.S. Army Research Laboratory Adelphi, MD, 20783, USA


additive manufacturing, composite materials, dielectric characterization, fused filament fabrication, antennas


In this paper we present the development of feedstock materials, specifically tailored permittivity materials used in fused filament fabrication (FFF), for microwave applications. One of the major bottlenecks in utilizing additive manufacturing for useful radiofrequency (RF) applications is the lack of suitable materials. Flexible, high-dielectric constant and low dielectric loss tangent composite materials, consisting of a mixture of polymer and ceramic nanoparticles in controlled volume fractions, are manufactured. Effective medium approximations (EMA) to predict composite properties, such as Bruggeman approximations, are validated with measurements between 18 – 40 GHz and are presented.


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How to Cite

Paul Parsons, Zachary Larimore, Mark Mirotznik, & Gregory Mitchell. (2020). Composite Materials Development for Fused Filament Fabrication of RF Systems. The Applied Computational Electromagnetics Society Journal (ACES), 35(11), 1278–1279. Retrieved from