A 40-GHz frequency divider in 0.18-/spl mu/m CMOS technology

A frequency divider employs resonance techniques by means of on-chip spiral inductors to operate at high speeds. Configured as two cascaded /spl divide/2 stages, the circuit achieves a frequency range of 2.3 GHz at 40 GHz while consuming 31 mW from a 2.5-V supply.