The 7 GHz Hermetically Sealed Surface Mount Cavity Filter series from NIC can be customized to have a center frequency from 3 to 18 GHz with a 1% to 30% 3 dB bandwidth. It has a low insertion loss of less than 2 dB, good rejection and high selectivity and a VSWR of 1.5:1. The filters are available in a ruggedized package for Hi-Rel environments.