A Wide Locking Range Bleed-Current Injection-Enhanced Miller Divider in V-Band

摘要

We present an injection enhancement technique to increase the locking range of mm-wave frequency dividers. This technique uses transistors as current bleeders for injection enhancement and therefore does not impose chip area overhead compared to other techniques such as those that use inductors and/or transformers. Mathematical analysis of the divider has been presented with the injection locking mechanism perspective. A bleed-current injection-enhanced Miller divider has been designed in a standard 40nm mm-wave CMOS process. Postlayout simulation results after R-C-CC-L-M parasitic extraction show locking range of 25. 5GHz (50GHz-75.5GHz), with 0dBm input injection power at a center frequency of 62. 625GHz, for a nominal power dissipation of 7. 5mW.