The QHF-9000-18000-50 from Qualwave is a RF High Pass Filter with Frequency 9 to 18 GHz, Bandwidth 9000 MHz, Insertion Loss 1.5 dB, Rejection 50 dB, Lower Rejection 50 dB @ DC to 7.8 GHz. Tags: Module with Connectors. More details for QHF-9000-18000-50 can be seen below.