Physical modeling of on-chip antenna for UHF RFID tags

Author

Xi, Jingtian ; Min, Hao ; Ye, Terry T.

Author_Institution

Hong Kong R&D Center for Logistics & Supply Chain Manage. (LSCM), Hong Kong, China

fYear

2010

fDate

11-17 July 2010

Firstpage

1

Lastpage

4

Abstract

Lumped-element models and parameter extraction methods for OCA are vital to successfully integrating OCA with RFID tags. In this paper, a compact model for OCA at UHF band is proposed. Metal loss (skin and proximity effects) and substrate coupling are taken into account. Meantime, a fast and physics meaningful parameter extraction method is presented. Two OCA prototypes and one fully-integrated UHF RFID tag chip have been designed and fabricated in SMIC 0.18μm CMOS RF process. Their measurement and simulation results verified the proposed OCA model and parameter extraction method. It is further demonstrated that the proposed model and extraction method can help to predict the tag read range.

Keywords

CMOS integrated circuits; antennas; integrated circuit modelling; proximity effect (lithography); radiofrequency identification; skin effect; OCA model; SMIC CMOS RF process; UHF band; fully-integrated UHF RFID tag chip; lumped-element models; metal loss; on-chip antenna; parameter extraction methods; physical modeling; proximity effects; size 0.18 mum; skin effect; substrate coupling; Antennas; Integrated circuit modeling; Mathematical model; Parameter extraction; Radiofrequency identification; Semiconductor device modeling; Substrates;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE

Conference_Location

Toronto, ON

ISSN

1522-3965

Print_ISBN

978-1-4244-4967-5

Type

conf

DOI

10.1109/APS.2010.5561198

Filename

5561198