Conference Proceeding

Design of a highly efficient CMOS rectifier for passive communication systems

Inst. for Electron. Eng., Univ. of Erlangen-Nuremberg, Erlangen, Germany
01/2011; pp.896 - 899 In proceeding of: Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Source: IEEE Xplore

ABSTRACT This paper presents the design of a highly efficient CMOS rectifier for passive communication systems. The integrated rectifier is implemented in a 0.13 μm CMOS technology. The measured overall RF-to-DC power conversion efficiency for a DC output power of 10 μW (1V and 10 μA) is about 25%. The maximum efficiency for a DC output voltage of 1V is about 43% at UHF and the efficiency of the rectifier at -15 dBm RF input power is still 20%. This rectifier is using a self threshold cancelation technique to enhance the efficiency significantly.

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Keywords

-15 dBm RF input power
 
DC output power
 
DC output voltage
 
efficient CMOS rectifier
 
integrated rectifier
 
maximum efficiency
 
rectifier
 
RF-to-DC power conversion efficiency
 
self threshold cancelation technique
 

J. Essel