An 18.8–33.9 GHz, 2.26 mW Current-Reuse Injection-Locked Frequency Divider for Radar Sensor Applications

An 18.8–33.9 GHz, 2.26 mW current-reuse (CR) injection-locked frequency divider (ILFD) for radar sensor applications is presented in this paper. A fourth-order resonator designed using a transformer with distributed inductor wideband operating of the ILFD. The CR core employed to reduce power consumption compared conventional cross-coupled pair ILFDs. targeted input center 24 GHz application. self-oscillated proposed CR-ILFD 14.08 GHz. locking range from 18.8 33.8 (57%) at an injection 0 dBm without capacitor bank or varactors. consumes 1 V supply voltage. entire die size 0.75 mm × 0.45 mm. This implemented 65 nm complementary metal-oxide semiconductor (CMOS) technology.