The PDHF-13R75 from Sainty-Tech Communications Limited is a RF High Pass Filter with Frequency 13.8 to 20 GHz, Insertion Loss 2.0 dB @13.8GHz, Power 30 dBm, Rejection 25 dB @9.5GHz, 35 dB @6.0GHz, Lower Rejection 25 to 35 dB. Tags: Die. More details for PDHF-13R75 can be seen below.