CPR137 to Type N Adapter is frequently used on the waveguide flange transmit port of a C-Band amplifier. With low power amplifiers it is not necessary to carry the RF signal over expensive waveguide, because a short length of low loss coax cable will work well.
This transition bolts onto the waveguide flange of the amplifier and provides a connector for the coax cable.
This choice is perfectly acceptable with low power devices, guessing 30 watts maximum although we have seen them used on 100 watt amplifiers.
This adapter allows the conversion from WR137 to Type N.
We have several of these CPR137 to Type N Adapter devices manufactured by Advanced Microwave Components.