A 90-nm Ka-band Dual-Injection-Locked CMOS Frequency Divider

In this paper, a Ka-band Dual-Injection-Locked Frequency Divider (DILFD) using IBM 90-nm CMOS technology is proposed. The dual-injection-locked technique is used to extend the locking range of the frequency dividers based on resonator tank. The injection power is enhanced by fully utilizing the injection of the voltage and current signal. The post layout simulation results show that the locking range of the divide-by-two frequency divider is 7.1 GHz and the input signal frequency is from 30.1 GHz to 37.2 GHz. The whole core circuit draws a DC current of 5.64 mA from a single 1.2-V supply. The chip occupies a layout area of 622μm×585μm.