I have just uploaded some very popular 4-pin edge style coaxial connectors that are 2.4mm, 2.92mm and SMA style that support up to 50, 40, and 18 GHz of bandwidth respectively. These have been sued for many years are crossed compatible with other manufacturers.
The nice thing about these connectors is that they are drop-in replacements for each other such that if the design needs a little more gain (less loss), then simply changing out the connector to a smaller aperture will increase the bandwidth.
The starting point would be the common SMA style connector that has an average aperture of about 4.5mm and by reducing the aperture to a smaller diameter to 2.92mm will provide less loss (increased bandwidth).
I will upload another set of the more recent addition as the 2-pin version sometime later tomorrow. These are the same characteristics, but with less pins for a tighter press fit mounting.
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