Work

Wideband investigation and characterization of wave-propagation on polymer microwave fibers at sub-THz frequencies

Year: 2025

Type: article

Abstract: Using polymer microwave fibers as waveguides has attracted significant attention over the last years. They are an attractive replacement for optical fibers or copper wires due to their price, flexibility, and robustness against electromagnetic interference. This work investigates the behavior of the wave propagation of a circular-shaped polymer microwave fiber mathematically and provides wide-band measurement results. The mathematical model is completely analytical and does not need any 3D finite element method simulation. After a short theoretical introduction, we compare the theoretical results with measurements performed by a vector network analyzer from 20 GHz up to 150 GHz. The behavior of the propagation constant, propagation speed, and group delay are compared with the predicted results. The maximum relative error between the theoretical prediction and the measurements was less than 0.7%.

Source: e+i Elektrotechnik und Informationstechnik

DOI: 10.1007/s00502-025-01337-x

Authors: Stefan Wögerbauer, Lukas Ebner, Helmut Paulitsch, Siegfried Krainer, Michael E. Gadringer

Institutions: Graz University of Technology, Infineon Technologies (Austria)

Language: English

Topic: Microwave Engineering and Waveguides

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,490

Funders: TU Graz, Internationale Beziehungen und Mobilitätsprogramme, Österreichische Nationalstiftung für Forschung, Technologie und Entwicklung, Österreichische Forschungsförderungsgesellschaft