MC-TECH 's MHF high pass filters use a simple yet effective waveguide cut-off filter technique. This design is useful for eliminating unwanted side bands in upconverters and out-of band frequencies in communication systems. These filters are small in size and compact by design. The CHF series can be designed for any frequency range from 0.1 to 220 GHz. Low insertion losses from 0.15 dB and cut off rejections of up to 80 dB are possible. Consult Cernex for dimensions due to the wide range of waveguide sizes and frequency ranges.