2.4GHz energy harvesting for wireless sensor network

Author

Gao, Hao ; Baltus, Peter ; Mahmoudi, Reza ; Van Roermund, Arthur

Author_Institution

Mixed-Signal Microelectron. Group, Eindhoven Univ. of Technol., Eindhoven, Netherlands

fYear

2011

fDate

16-19 Jan. 2011

Firstpage

57

Lastpage

60

Abstract

This paper presents the analysis of the performance of charge pump, and the design strategy and efficiency optimization of 2.4GHz micro-power charge pump using 65nm CMOS technology. The model of the charge pump takes account of the threshold voltage variation, bulk modulation, and the major parasitic capacitor. Charge pump is sensitive to the input voltage swing and the actual input voltage swing is less after the capacitor divider, which generates the optimized size transistor. From the mathematic model of the charge pump, the relationship between the charge pump performance and design parameter is presented. After parameter analysis and performance discussion, a design procedure to maximize performance is presented. Corresponding to the design procedure presented in this paper, a high efficiency charge pump at 2.4GHz is presented.

Keywords

CMOS integrated circuits; energy harvesting; wireless sensor networks; CMOS technology; bulk modulation; energy harvesting; frequency 2.4 GHz; micropower charge pump; parasitic capacitor; size 65 nm; threshold voltage variation; wireless sensor network; CMOS integrated circuits; Capacitors; Charge pumps; Logic gates; Power dissipation; Transistors; Wireless sensor networks; 2.4GHz; CMOS; Energy Harvesting; charge pump; wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Sensors and Sensor Networks (WiSNet), 2011 IEEE Topical Conference on

Conference_Location

Phoenix, AZ

Print_ISBN

978-1-4244-8414-0

Electronic_ISBN

978-1-4244-8413-3

Type

conf

DOI

10.1109/WISNET.2011.5725019

Filename

5725019