Model OWBP-22003800-28 is a Ka band waveguide bandpass filter with a passband frequency of 22 to 38 GHz and rejection frequencies from DC to 20 GHz and 41 to 60 GHz.
The nominal insertion loss of the bandpass filter is 2.0 dB and the typical rejection is 50 dB. Since both low end and high end cut off frequencies can be selected by modifying the design, custom designs are available under different model numbers.