The VA 20 - PQB- (***-***)-B from The Waveguide Solution is a Waveguide Attenuator with Frequency 18 to 26.5 GHz, Average Power 0.5 W, Attenuation 0 to 40 dB, Insertion Loss less than 0.2dB. More details for VA 20 - PQB- (***-***)-B can be seen below.