The BWHF-2G from Sainty-Tech Communications Limited is a RF High Pass Filter with Frequency 2 to 18 GHz, Insertion Loss 2.5 dB @2.0GHz, Power 30 dBm, Rejection 20 dB @1.4GHz, 40 dB @1.25GHz, Lower Rejection 20 to 40 dB. Tags: Die. More details for BWHF-2G can be seen below.