The VA 22 - SQB- (***-***)-B from The Waveguide Solution is a low power waveguide variable attenuator that operates from 26.5 GHz to 40 GHz. It has a 40 dB attenuation range with an insertion loss of less than 0.3 dB and VSWR of 1.2:1. The attenuator can handle up to 0.5 W of CW power and is available with waveguide sizes from WG22 to WR28. It has silver plated flanges finishing with brass material that measures 127 x 76 mm.