Variations

The SMA adapter is about rated for mode-free operation from DC to 18 GHz, admitting some proprietary versions are rated to 26.5 GHz. For achievement aloft this, SMA-like connectors are used. These are the 3.5 mm connector, rated to 34 GHz, and the 2.92 mm (also accepted as 2.9 mm, SMK, or K type),1 acceptable up to 46 GHz. These connectors accumulate the aforementioned alfresco cilia as the SMA, so they can all be cross-mated, about they use an air dielectric, with the centermost conductors appropriately scaled. However, the activity of the attention adapter will be reduced, and can be calmly damaged if alliance with low-grade SMA connectors.

Beyond 46 GHz, the 2.4 mm, 1.85 mm and the 1 mm adapter exist. These are agnate to the SMA connector, but with the geometries abnormally scaled. These accept mode-free operation to 50, 65, and 110 GHz respectively.