Design of a highly efficient CMOS rectifier for passive communication systems

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.

[1]  Bomson Lee,et al.  Development of Long-Range UHF-band RFID Tag chip Using Schottky Diodes in Standard CMOS Technology , 2007, 2007 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium.

[2]  Robert Weigel,et al.  A highly efficient UHF RFID frontend approach , 2009, 2009 IEEE MTT-S International Microwave Workshop on Wireless Sensing, Local Positioning, and RFID.

[3]  Robert Weigel,et al.  Local positioning with passive UHF RFID transponders , 2009, 2009 IEEE MTT-S International Microwave Workshop on Wireless Sensing, Local Positioning, and RFID.

[4]  R. Weigel,et al.  The system design of integrated passive transponder devices , 2006, 2006 Asia-Pacific Microwave Conference.

[5]  Kai Chang,et al.  Design and Experiments of a High-Conversion-Efficiency , 1998 .

[6]  R. Berenguer,et al.  Design Criteria for Full Passive Long Range UHF RFID Sensor for Human Body Temperature Monitoring , 2007, 2007 IEEE International Conference on RFID.

[7]  N. Goldsman,et al.  Parasitic aware optimization of an RF power scavenging circuit with applications to Smartdust sensor networks , 2009, 2009 IEEE Radio and Wireless Symposium.

[8]  K. Kotani,et al.  High-Efficiency Differential-Drive CMOS Rectifier for UHF RFIDs , 2009, IEEE Journal of Solid-State Circuits.

[9]  Martin Fischer,et al.  Fully integrated passive UHF RFID transponder IC with 16.7-μW minimum RF input power , 2003, IEEE J. Solid State Circuits.

[10]  R. Weigel,et al.  Wireless sensing by means of passive multistandard RFID tags , 2009, 2009 IEEE Sensors.

[11]  Kai Chang,et al.  A high conversion efficiency 5.8 GHz rectenna , 1997, 1997 IEEE MTT-S International Microwave Symposium Digest.

[12]  Joseph A. Paradiso,et al.  Energy scavenging for mobile and wireless electronics , 2005, IEEE Pervasive Computing.

[13]  Robert Weigel,et al.  Highly efficient multistandard RFIDs enabling passive wireless sensing , 2009, 2009 Asia Pacific Microwave Conference.