Quantic PMI Model DTA-2G18G-60-12-CD-1-20DBM-TS-NSI is a 12-bit programmable 60 dB pin diode attenuator over the frequency range of 2 to 18 GHz that offers an attenuation range of 60 dB with a minimum step size of 0.016 dB and a attenuation flatness of ±1 dB at 20 dB to ±3 dB at 60 dB. Insertion loss is 4,8 dB, VSWR of 2.0:1, switching speed 1.0 µs maximum. This model is offered in a slim line housing measuring only 2.0” x 1.8” x 0.5” with SMA female connectors.  https://www.quanticpmi.com/product-details/dta-2g18g-60-12-cd-1-20dbm-ts-nsi