IEEE 1785.1-2026

This standard gives specifications for the waveguide (including aperture dimensions, frequency range, cut off frequency, etc.). This standard considers the tolerances of the waveguide aperture dimensions and the effect these have on the electrical properties (in terms of reflection coefficient, attenuation constant, etc.) of the waveguide.

The purpose of this standard is to provide the agreed reference for all organizations using rectangular waveguides at these frequencies. This will enable efficient trade between customers and suppliers, and common design criteria and practices for component, systems, and design engineers.

Revision Standard - Active. Specifications for rectangular metallic waveguides operating at 110 GHz and above (including aperture dimensions, frequency range, cut-off frequency, etc.) are given in this standard. The tolerances of the waveguide aperture dimensions and the effect these have on the electrical performance (in terms of reflection coefficient, attenuation constant, etc.) of the waveguide are also considered.