The BWSBF-18/40-3A from Sainty-Tech Communications Limited is a Switched Filter Bank with Frequency 18 to 40 GHz, Band 1 18 to 24 GHz, Band 2 23 to 30.5 GHz, Band 3 29.5 to 40 GHz, Insertion Loss 5.2 to 5.5 dB. Tags: Die. More details for BWSBF-18/40-3A can be seen below.