The Series 110 from Flann Microwave is a range of rotary attenuators that are available in frequencies from 2.6 GHz to 500 GHz. They have a 0 dB to 60 dB attenuation range with 0.1 dB accuracy. Since the attenuation is independent of frequency these attenuators are ideally suited for attenuation transfer and verification standards. They are available in a number of waveguide sizes based on the frequency range of operation.
