A Flexible Measurement System for Dielectric Waveguide Characterization at mmW Frequencies

Due to their outstanding transmission behavior of millimeter wave (mmW) signals at high flexibility, low weight and low costs, dielectric waveguides (DWG) represent a convenient technology for future transmission systems and are well suitable for applications like radar, mmW imaging or high speed communication. As different operating conditions require optimized geometries or materials of the DWGs, it is necessary to provide a flexible and robust measurement system to precisely characterize the transmission properties of DWGs with any cross section geometry. To extract the attenuation and phase constants $\alpha$ and $\beta$ a multiline de-embedding technique is used. Measurement results are shown in this paper.