RT Conference Proceedings T1 Reference-Plane Invariant Free Space Dielectric Material Characterization up to 330 GHz. A1 Moreno-Rodríguez, Salvador A1 Pérez-Escribano, Mario A1 Ortiz Ruiz, Sergio A1 Alex-Amor, Antonio A1 Plaza-Gallardo, Borja A1 García-Ruiz, Francisco J. A1 Molero, Carlos K1 Relajación dieléctrica K1 Materiales AB This paper describes the process followed to implement a system to characterize the complex permittivity of materials in the 10-330 GHz frequency band. Firstly, the method used and the system's calibration process are shown, consisting of a double calibration TRL (Thru-Reflect-Line) and GRL (Gated-Reflect-Line). Subsequently, a smoothing technique is used to improve the accuracy of the results. Finally, a test is performed on quartz and glass fiber samples, showing that the results are quite reliable over the entire measured bandwidth. YR 2024 FD 2024 LK https://hdl.handle.net/10630/31201 UL https://hdl.handle.net/10630/31201 LA eng NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026