Model OWBP-76007700-12 is an E band waveguide highpass filter with a passband frequency of 81 GHz and higher and a rejection frequency from DC to 77 GHz.
The filter provides a nominal insertion loss of 1.0 dB across its passband with a low ripple and a typical rejection of 40 dB. Since the low end cutoff frequency can be changed by modifying the design, custom designs can be offered under different model numbers.