Low-power transformer-based current-reuse injection-locked frequency divider

A novel low-power injection-locked frequency divider (ILFD) is proposed, in which a complementary Gm-boosted Colpitts oscillator core is employed to improve negative transconductance (Gm) and the current-reuse technique using a single transformer is applied to reduce the power consumption. The proposed ILFD exhibits a self-resonant frequency of 4.93 GHz with a maximum locking range of 870 MHz at 0...