The 4SFB-9G18G-512-SFF from Quantic PMI (Planar Monolithics) is a Switched Filter Bank with Frequency 9 to 18 GHz, Band 1 9000 to 10000 MHz, Band 2 10000 to 11000 MHz, Band 3 16000 to 17000 MHz, Insertion Loss 8 dB. Tags: Module. More details for 4SFB-9G18G-512-SFF can be seen below.