A fully integrated UHF SAW based RFID

Author

Duo Liu ; Xinen Zhu ; Tao Han

Author_Institution

SJTU Joint Inst., Univ. of Michigan, Ann Arbor, MI, USA

fYear

2012

fDate

7-10 Oct. 2012

Firstpage

1529

Lastpage

1532

Abstract

More and more RFID application scenarios have demands on small size, such as in liquor bottle caps and oil drill pipes. Either the substrate dimension or the antenna´s geometry has to be further miniaturized for SAW RFID. Integrating the antenna with SAW RFID on the high permittivity piezoelectric substrate becomes a good method for size reduction. The design of a fully integrated RFID on the 128° YX-LiNbO₃ substrate for size miniaturization and self impedance matching, including the antenna/SAW tag co-design and tuning strategy to compensate the mismatch caused by the temperature variation are introduced.

Keywords

antennas; impedance matching; lithium compounds; permittivity; piezoelectric materials; radiofrequency identification; surface acoustic wave devices; LiNbO₃; RFID; antenna design; antennageometry; fully integrated UHF SAW; high permittivity piezoelectric substrate; radiofrequency identification; self impedance matching; tuning strategy; Dipole antennas; Encoding; Radiofrequency identification; Substrates; Surface acoustic wave devices; Surface acoustic waves; RFID; SAW; fully integrated; miniaturized antenna; self-impedance matching;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2012 IEEE International

Conference_Location

Dresden

ISSN

1948-5719

Print_ISBN

978-1-4673-4561-3

Type

conf

DOI

10.1109/ULTSYM.2012.0382

Filename

6562357