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http://dx.doi.org/10.5573/JSTS.2011.11.4.329

A CMOS Frequency divider for 2.4/5GHz WLAN Applications with a Simplified Structure  

Yu, Q. (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China)
Liu, Y. (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China)
Yu, X.P. (School of Electrical and Electronic Engineering, Nanyang Technological University)
Lim, W.M. (School of Electrical and Electronic Engineering, Nanyang Technological University)
Yang, F. (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China)
Zhang, X.L. (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China)
Peng, Y. (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China)
Publication Information
JSTS:Journal of Semiconductor Technology and Science / v.11, no.4, 2011 , pp. 329-335 More about this Journal
Abstract
In this paper, a dual-band integer-N frequency divider is proposed for 2.4/5.2 GHz multi-standard wireless local area networks. It consists of a multi-modulus imbalance phase switching prescaler and two all-stage programmable counters. It is able to provide dual-band operation with high resolution while maintaining a low power consumption. This frequency divider is integrated with a 5 GHz VCO for multi-standard applications. Measurement results show that the VCO with frequency divider can work at 5.2 GHz with a total power consumption of 22 mW.
Keywords
Frequency divider; frequency synthesizer; phases switching; wireless local area network(WLAN);
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