Cover 0.5 ~ 18GHz frequency range; good tuning linearity; low-loss high blocking capability; wide operating temperature range Frequency range: 0.5~1GHz,1~2 GHz, 0.8~2.2GHz, 1.8~4 GHz, 2~4GHz, 4~8GHz, 8~12GHz, 12~18GHz, 8~18GHz and etc. yig Band-stop filter