Abstract
SummaryA novel wide locking range divide‐by‐4 injection‐locked frequency divider (ILFD) is proposed in the paper and was implemented in the TSMC 0.18 µm 1P6M CMOS process. The divide‐by‐4 ILFD uses two injection transistors in series and DC‐biased above threshold voltage and a frequency doubler to enhance the function of linear mixers. At the drain‐source bias of 0.9 V and at the incident power of 0 dBm, the locking range of the divide‐by‐4 is 2.6 GHz; from the incident frequency 12.2 to 14.8 GHz, the percentage is 19.26%. The core power consumption is 10.35 mW. The die area of ILFD is 1.026 × 0.943 mm2. Copyright © 2015 John Wiley & Sons, Ltd.
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