Title :
A mm-wave power harvesting RFID tag in 90nm CMOS
Author :
Pellerano, Stefano ; Alvarado, Javier, Jr. ; Palaskas, Yorgos
Author_Institution :
Commun. Integration Res., Intel Corp., Hillsboro, OR, USA
Abstract :
A mm-wave power-harvesting RFID tag is implemented in 90 nm CMOS. Operation at mm-wave reduces antenna size and could allow antenna integration on-chip. This, together with power harvesting that can be used in lieu of a battery, can result in a CMOS-only tag with no off-chip components whatsoever. The tag harvests energy from the incoming mm-wave CW signal by the reader and then uses a 60 GHz free-running oscillator to transmit back pulse-width modulated bursts. With 2 dBm mm-wave input power, the tag transmits 5 kb/s. The tag size is 1.3 times 0.95 mm2 including pads.
Keywords :
CMOS integrated circuits; energy harvesting; low-power electronics; radiofrequency identification; CMOS; RFID tag; antenna integration on-chip; mm-wave power harvesting; off-chip components; pulse-width modulated bursts; size 90 nm; Capacitors; Costs; Impedance matching; Phase locked loops; Pulse modulation; RFID tags; Schottky diodes; Space vector pulse width modulation; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Custom Integrated Circuits Conference, 2009. CICC '09. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-4071-9
Electronic_ISBN :
978-1-4244-4073-3
DOI :
10.1109/CICC.2009.5280756
