The HA18A5W-15 from HASCO is a Fixed Attenuator that operates from DC to 18 GHz. It provides an attenuation of 15 dB and has a VSWR of less than 1.35:1. This attenuator can handle an average input power of 5 W and a peak input power of 500 W (5 µSec pulse width, 0.25% duty cycle). It is available in a module that measures 2.15 inches in length and has N-type (male/female) connectors.