Abstract
This letter presents a quadrature injection-locked frequency divider (QILFD) to achieve high-speed, wide-locking range, accurate quadrature output phases, and large output voltage swing.The QILFD consists of two differential top-series-injected injection-locked frequency dividers coupled by four parasitic bipolar junction transistors (BJTs). The MOSFET with the coupling BJT is used as a top-series RF injector and linear mixer. The proposed QILFD has been implemented with the TSMC 0.13-μm CMOS technology and the core power consumption is 6.02 mW at the supply voltage of 0.8 V. The operation range is from 9.2 to 12.8 GHz while the input power is 0 dBm. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2284–2287, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27089
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