A broadband frontend design for UHF RFID tag

Author

Qian Ma ; El Waffaoui, R. ; Baltus, P. ; van Roermund, Arthur H. M.

Author_Institution

Dept. of Electr. Eng., Eindhoven Univ. of Technol., Eindhoven, Netherlands

fYear

2012

fDate

16-16 Nov. 2012

Firstpage

1

Lastpage

12

Abstract

This paper presents a complete broadband UHF RFID tag frontend operating in 840/960-MHz band. First a complete RFID system is modeled with Verilog-A. With the optimal quality factor of frontend derived from the system modeling part, a broadband charge pumps (CP) are designed with 0.16um CMOS process. The proposed broadband CP achieves a power conversion efficiency (PCE) of 39.6% at -21.1dBm input RF power. In addition, a broadband commercial use UHF RFID antenna is presented to match the broadband CP. Finally, the co-simulation is performed for the complete frontend design. The simulation result shows that the proposed UHF RFID tag frontend achieves an minimum sensitivity of -21dBm and an maximal power bandwidth larger than 250MHz.

Keywords

CMOS integrated circuits; Q-factor; UHF antennas; UHF integrated circuits; charge pump circuits; radiofrequency identification; CMOS process; UHF RFID antenna; UHF RFID tag frontend; Verilog-A modeling; broadband charge pumps; broadband frontend design; frequency 840 MHz; frequency 960 MHz; power conversion efficiency; quality factor; radiofrequency identification; size 0.16 mum; Broadband antennas; Impedance; Modulation; Radiofrequency identification; Semiconductor device modeling; Threshold voltage; UHF RFID antenna; UHF RFID frontend; charge pump; passive tag; radio-frequency identification (RFID);

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Vehicular Technology in the Benelux (SCVT), 2012 IEEE 19th Symposium on

Conference_Location

Eindhoven

Print_ISBN

978-1-4673-2114-3

Electronic_ISBN

978-1-4673-2113-6

Type

conf

DOI

10.1109/SCVT.2012.6399406

Filename

6399406