A 140 GHz single-ended injection locked frequency divider with inductive feedback in SiGe HBT technology

In this work, a single-ended divide-by-2 injection locked frequency divider with inductive feedback is presented. The frequency divider, fabricated in a commercial 0.18 μm SiGe HBT technology, showed a measured locking range of 126.9-141.5 GHz (14.7 GHz) and an operating range of 126.9-150.0 GHz (23.1 GHz) with bias adjustment. The DC power consumption of the ILFD core was 6.9 mW and that of the output buffer was 13.5 mW.