WR-90 300 W Waveguide Rotary Joint in the X Band Frequency range, 9.2 GHz to 9.5 GHz, UG Cover UG Grooved Flanges, Inline Style Waveguide type - WR90 Material - Aluminum Frequency range = 9.2 to 9.5 GHz Operating bandwidth - 10~20% of waveguide bandwidth VSWR (max) - 1.25 VSWR WOW - 0.05 Insertion loss (max) - 0.25 dB Insertion loss WOW - 0.05 dB