The JX-HPF1-3G18G-60S from Chengdu Jingxin Microwave Technology is a RF High Pass Filter with Frequency 3 to 18 GHz, Insertion Loss 1 to 2 dB, Power 15 W, Lower Rejection 40 to 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for JX-HPF1-3G18G-60S can be seen below.