RT Journal Article T1 Microwave Characterization of Conductive PLA and Its Application to a 12 to 18 GHz 3-D Printed Rotary Vane Attenuator A1 Márquez-Segura, Enrique A1 Sang-Hee, Shin A1 Dawood, Attique A1 Ridler, Nick A1 Lucyszyn, Stepan K1 Microondas K1 Impresoras AB This paper demonstrates an ultra-light weight microwave rotary vane attenuator (RVA) manu- factured using polymer-based 3-D printing. In addition, for the first time, conductive polylactic acid (PLA) is rigorously characterized across both X- and Ku-bands (8 to 18 GHz); while acrylonitrile butadiene-styrene (ABS) has similarly been characterized across Ku-band (12 to 18 GHz). Using the results from the conductive PLA characterization process, an electromagnetic model was created for predicting the performance of the RVA. It is shown that, even with its complex internal geometrical features, a mix of both dielectric and conductive PLA building materials, an assembly of multiple parts and a mechanically rotating central section, our experimental proof-of-concept prototype RVA exhibits excellent measured performance across Ku-band.This tunable microwave control device represents a higher-level of functionality for additive manufacturing, when compared to a fixed (i.e., non-movable) 3-D printed structure, opening the way for other groups to routinely 3-D print custom microwave components and subsystems in the not too distant future. PB IEEE YR 2021 FD 2021-06 LK https://hdl.handle.net/10630/41478 UL https://hdl.handle.net/10630/41478 LA eng NO E. Márquez-Segura, S. -H. Shin, A. Dawood, N. M. Ridler and S. Lucyszyn, "Microwave Characterization of Conductive PLA and Its Application to a 12 to 18 GHz 3-D Printed Rotary Vane Attenuator," in IEEE Access, vol. 9, pp. 84327-84343, 2021, doi: 10.1109/ACCESS.2021.3087012. NO TEC2016-76070- C3-3-R NO PRX19/00074 NO RP10G0435A202 DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026