The basic function of RF filters is to accept for certain frequencies to pass a certain range and rejecting frequencies external that assumed range.
RF Waveguide high-pass covers the frequency range up to 50 GHz and allows the rejection of 40dB. RF Waveguide high-pass covers the insertion loss from 0.5dB to 2.5dB. RF Waveguide high-pass includes the WR-08, WR-10, WR-12, WR-15.