QuinStar Technology’s QSA series millimeter-wave variable PIN attenuators cover the frequency range of 18 to 110 GHz in seven waveguide bands. They are constructed with a rugged, split block mechanical design that utilizes PIN diodes, and are capable of handling RF power levels up to 0.5 Watt. Standard units feature broad bandwidth. However, they can be optimized over a narrower frequency range for greater attenuation range or lower insertion loss. They are ideal for signal level control and amplitude modulation.
A coaxial version covering DC to 50 GHz frequency range is also offered. See model QVA for details.