CMOS THz-ID: A 1.6-mm² Package-Less Identification Tag Using Asymmetric Cryptography and 260-GHz Far-Field Backscatter Communication

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 60
  • Download : 0
This article presents an ultra-small, high-securityidentification tag that is entirely built in a CMOS chip withoutexternal components. The usage of backscatter communica-tions at 260 GHz enables full integration of a 2×2patchantenna array. For chip compactness and minimum interfer-ence caused by direct wave reflection, the backscatter signal isfrequency-shifted by 2 MHz and radiated with cross polarizationfrom the same antenna array. Such a configuration also, for thefirst time for RF tags, enables beamsteering for enhanced linkbudget. For authentication and secure wireless data transmission,the tag also integrates a compact elliptic-curve-cryptography(ECC) dedicated processor, which is based on a narrow-strongprivate identification protocol. The presented tag has a peakpower consumption of 21μW and can be powered by a chip-widearray of photodiodes and a DC–DC converter. Using a low-cost65-nm bulk CMOS technology, the terahertz (THz) ID chiphas an area of only 1.6 mm2and demonstrates the measureddownlink speed of 100 kb/s and the upload speed of 2 kb/sacross 5-cm distance from the reader. The tag-reader authentica-tion/communication protocol is fully demonstrated using externaltag power and partially demonstrated using the tag-integratedphoto-voltaic powering. The tag size is the smallest amongall prior radio-frequency identifications (RFIDs) using far-fieldcommunications.
Publisher
Institute of Electrical and Electronics Engineers
Issue Date
2021-02
Language
English
Article Type
Article
Citation

IEEE Journal of Solid-State Circuits, v.56, no.2, pp.340 - 354

ISSN
0018-9200
DOI
10.1109/jssc.2020.3015717
URI
http://hdl.handle.net/10203/281053
Appears in Collection
EE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0