The Model LPF1-86-11 is an E-Band low pass waveguide filter series (WR-12). This filter has a pass band of 71 to 86 GHz with an insertion loss between 1.5 dB and 2 dB. It provides 20 dB of rejection from 91 GHz and 30 dB at 140 GHz. This waveguide filter can be customized to operate from 18 to 110 GHz with a sharp cut-off of 5%.