The DPX-18G26R5G40G from Quantic PMI (Planar Monolithics) is a Diplexer with Frequency f1 18 to 25 GHz, Frequency f2 25 to 40 GHz, Attenuation 60 dB, Attenuation f1 60 dB, Attenuation f2 60 dB. Tags: Module with Connectors, Cavity. More details for DPX-18G26R5G40G can be seen below.