The BWHF-23G from Sainty-Tech Communications Limited is a RF High Pass Filter with Frequency 23 to 30 GHz, Insertion Loss 2.3 dB @23.0GHz, Power 30 dBm, Rejection 40 dB @100MHz to 16GHz, Lower Rejection 40 dB. Tags: Die. More details for BWHF-23G can be seen below.