The BWHF-8G from Sainty-Tech Communications Limited is a RF High Pass Filter with Frequency 8 to 30 GHz, Insertion Loss 1.7 dB @8.0GHz, Power 30 dBm, Rejection 20 dB @5.45GHz, 40 dB @4.95GHz, Lower Rejection 20 to 40 dB. Tags: Die. More details for BWHF-8G can be seen below.