The 12CL11G-4G-CD-SFF from Quantic PMI (Planar Monolithics) is a Band Pass Filter with Frequency 11 GHz, Center Frequency 11000 MHz, Insertion Loss 1 dB, Rejection 50dB @ 13000 and 18500MHz and 60dB @ 15000 to 29000MHz, VSWR 2.00:1. Tags: Module with Connectors, Combline Filter. More details for 12CL11G-4G-CD-SFF can be seen below.