Recommendations for Waveguide Interfaces to 1 THz

The existing waveguide interface standards are generally found to be unsatisfactory above 110 GHz. An improved interface is proposed which is backward-compatible with the MIL-DTL-3922/67C standard and most of its higher-frequency variants. As there are currently no standard waveguide bands above 325 GHz, an extended set of bands is recommended for operation to 1100 GHz. Index Terms — Waveguides, millimeter-wave waveguides, rectangular waveguides, submillimeter-wave waveguides, standards.