SAW-based radioisotope-powered wireless RFID/RF transponder

Author

Tin, Steven ; Lal, Amit

Author_Institution

Sch. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA

fYear

2010

fDate

11-14 Oct. 2010

Firstpage

1498

Lastpage

1501

Abstract

We demonstrate a microfabricated ⁶³Ni radioisotope-powered RFID transponder realized with a SAW (surface acoustic wave) device as the transmission frequency selector. The transponder is powered by a 1.5 milli-Ci ⁶³Ni source which has a half-life of 100 years. We have achieved a 5mW, 10-μs long, 100MHz carrier envelope, RF pulses which occur every 3 minutes, across a 50Ω load. The optimization of conversion efficiency of the system is studied, and with fingers placed between input and output ports, the mass-loading effects of the devices are also investigated for RFID/RF sensor applications. The transponder can potentially work autonomously for decades, enabling long term reliable sensing and monitoring eliminating the need for battery changing.

Keywords

optimisation; radiofrequency identification; radioisotopes; surface acoustic wave devices; transponders; RFID/RF sensor application; SAW-based radioisotope-powered wireless RFID/RF transponder; conversion efficiency; frequency 100 MHz; mass-loading effects; microfabricated ⁶³Ni radioisotope-powered RFID transponder; optimization; power 5 mW; surface acoustic wave device; transmission frequency selector; Capacitance; Discharges; Radio frequency; Radiofrequency identification; Resonant frequency; Surface acoustic wave devices; Surface acoustic waves; 63Ni; Power generation; RFID; Radioisotope;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2010 IEEE

Conference_Location

San Diego, CA

ISSN

1948-5719

Print_ISBN

978-1-4577-0382-9

Type

conf

DOI

10.1109/ULTSYM.2010.5936003

Filename

5936003