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Mathematical Problems in Engineering
Volume 2014, Article ID 512398, 8 pages
Research Article

Lower Power Design for UHF RF CMOS Circuits Based on the Power Consumption Acuity

School of Computer and Information Engineering, School of Economics & Management, Beijing University of Agriculture, Beijing 102206, China

Received 25 September 2013; Revised 29 November 2013; Accepted 30 December 2013; Published 10 March 2014

Academic Editor: Gelan Yang

Copyright © 2014 Niu Xiang-jie and Li Hua. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Excessive energy consumption of UHF tag is the bottleneck of energy saving in its wide range of applications. To address this issue, a lower power design for UHF RF CMOS circuits based on power consumption acuity is proposed in this paper. Through in-depth analysis of the static and dynamic power generation principle of UHF RF circuits in the work, the power consumption acuity can be calculated by using the correlation of circuit power and input vector. Subsequently, under the guide of this acuity, the UHF RF CMOS circuits with better energy saving can be designed. Furthermore, according to the performance indicators of EPC CIG2 UHF RFID in UHF identification, the corresponding circuit is designed and implemented. The test results show that the design of UHF RF circuit based on the acuity of power consumption can reduce 35%–40% power consumption.