The HPF-SS-4400-18000-1.3-SF-SM from DETI Microwave is a RF High Pass Filter with Frequency 4.4 to 18 GHz, Bandwidth 13600 MHz, Insertion Loss 1.0 dB, Power 2 W, Rejection 30 dB. Tags: Module with Connectors, Suspended Substrate Filter. More details for HPF-SS-4400-18000-1.3-SF-SM can be seen below.