Title :
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
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;
Conference_Titel :
Ultrasonics Symposium (IUS), 2012 IEEE International
Conference_Location :
Dresden
Print_ISBN :
978-1-4673-4561-3
DOI :
10.1109/ULTSYM.2012.0382
