The 5CL18G-4G-CD-SFF from Quantic PMI (Planar Monolithics) is a Band Pass Filter with Frequency 16 to 20 GHz, Bandwidth 4000 MHz, Center Frequency 18000 MHz, Insertion Loss 0.75 dB, Rejection -70dBc @ 5.0GHz -70dBc @ 32.0 to 40.0GHz. Tags: Module with Connectors, Combline Filter. More details for 5CL18G-4G-CD-SFF can be seen below.