The BWSBF-30R1/40-2 from Sainty-Tech Communications Limited is a Switched Filter Bank with Frequency 30.1 to 40 GHz, Band 1 30.1 to 35.7 GHz, Band 2 34.7 to 40 GHz, Insertion Loss 3.9 to 4.4 dB, Isolation 30 dB. Tags: Die. More details for BWSBF-30R1/40-2 can be seen below.