A 24-GHz 90-nm CMOS INJECTION-LOCKED FREQUENCY DIVIDER

作者：Lee Chien Feng^*; Jang Sheng Lyang

来源：Microwave and Optical Technology Letters, 2009, 51(1): 32-36.

DOI：10.1002/mop.23986

• CMOS
• divide-by-2 injection-locked frequency divider
• VCO

This article presents a fully integrated 24-GHz divided-by-2 injection-locked frequency divider (ILFD). The circuit was implemented using a standard 90-nm CMOS process. The ILFD consists of a VCO core and injection MOS,for injection signal to the resonator. Two injection MOSFETs are in series with the cross-coupled transistors. The measurement results show that at the supply voltage of 1.2 V, the free running ILFD is tunable from 11.4 to 12.11 GHz. The locking range is from 21.93 to 27.11 GHz. The output phase noise of the locked ILFD is -109.82 dBc/Hz at 10-KHz offset frequency from the 12 GHz. The core power consumption is 4.32 mW at the supply voltage of 1.2 V.

• 出版日期2009-1