JYEBAO attenuators: 

18 GHz DC Coaxial Attenuator 

Power from 1 to 50 watts, 

Attenuation 0 to 40 dB

high frequency attenuators: 

High Power Attenuator, DC to 18 GHz 

Power up to 5000 Watts CW

MECA Coaxial Attenuators: 

18 GHz DC Precision Coaxial Attenuator 

Power 1 to 500 watts, 

Attenuation 0 to 40 dB