The 282A-28.4-29.1/.281/599 from MI-WAVE is a Waveguide Polarizer with Bandwidth 5 GHz, Frequency 26.5 to 33 GHz, Insertion Loss 1.0 dB, Waveguide Diameter 0.328, 0.281, 0.250, 0.219 Inch.. Tags: Fixed. More details for 282A-28.4-29.1/.281/599 can be seen below.