Contactless flange adapters for mm-wave measurements

In this paper leakage-free contactless flange adapters for mm-wave frequencies are presented. The adapters are compatible with standard rectangular waveguide flanges, covering the whole operational bandwidth of those. They are placed in between standard waveguides in order to avoid leakage at the joints between flange surfaces. Unlike standard flanges, the adapters are contactless, i.e., they do not require to be in good electrical contact when connected to the flange surfaces. Therefore, the use of fastening screws can be replaced by more practical ways of interconnection, e.g., magnets. In the end, the use of such adapters between standard waveguide flanges allows for faster, accurate and reliable mm-wave measurements.