The BWSBF-R1/20-5B from Sainty-Tech Communications Limited is a Switched Filter Bank with Frequency DC to 20 GHz, Band 1 DC to 0.1 GHz, Band 2 DC to 1 GHz, Band 3 0.1 to 2.3 GHz, Insertion Loss 5 to 8 dB. Tags: Die. More details for BWSBF-R1/20-5B can be seen below.