Abstract

We present several building blocks for RF front ends at micro and mm-wave frequencies using 90 nm CMOS. The designs are 20 GHz single- and 40 GHz double stage amplifiers with 5.6 and 7.3 dB gain respectively, a 20 GHz resistive mixer with CL = 7.9 dB and IIP3 = 17.5 dBm plus frequency doublers to 40 and 60 GHz with CL = 15.8 and 15.3 dB respectively. All circuits have been designed using distributed elements. Both using a 5 metal layer BEOL process and a 3 metal layer BEOL with post processing.