CMOS fully integrated 2.5GHz active RFID tag with on-chip antenna

Author

Fragomeni, Letizia ; Zito, Fabio ; Della Corte, Francesco G. ; Aquilino, Fabio ; Merenda, Massimo

Author_Institution

DIMET, Mediterranea Univ. of Reggio Calabria, Reggio Calabria, Italy

fYear

2010

fDate

26-28 April 2010

Firstpage

922

Lastpage

926

Abstract

This paper presents a fully integrated active RFID tag, realized in a 3.3V 0.35μm CMOS process, which exploits an on-chip loop antenna for short-range communications. This solution eliminates the need of a post-process assembled external antenna thus allowing to obtain a low-cost system for RFID applications. The implemented chip uses a 2.5GHz complementary cross-coupled LC oscillator based OOK transmitter. The system is duty cycled for reducing the power consumption. For the transmission of the stored 32bit indentifying code at 5kbit/s data rate, the average power consumption is 160μW. The integrated loop antenna radiates sufficient power for 1m communication range.

Keywords

CMOS integrated circuits; amplitude shift keying; loop antennas; oscillators; radiofrequency identification; CMOS; OOK transmitter; active RFID tag; cross-coupled LC oscillator; frequency 2.5 GHz; on-chip loop antenna; power 160 muW; short-range communication; size 0.35 micron; voltage 3.3 V; Active RFID tags; Circuits; Energy consumption; Frequency; Phase locked loops; RFID tags; Radio transmitters; Radiofrequency identification; Voltage-controlled oscillators; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

MELECON 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference

Conference_Location

Valletta

Print_ISBN

978-1-4244-5793-9

Type

conf

DOI

10.1109/MELCON.2010.5475932

Filename

5475932