Title :
SAW tags based on the self-matched unidirectional transducers
Author :
Sveshnikov, Boris
Abstract :
A use of self-matched unidirectional transducers (SMUDTs) is proposed in application to SAW tags. SMUDT provides simultaneously both high degree of its directionality and matching with the tag antenna without additional external circuitry. Numerical simulations of the tags, synthesized on 128° YX-LiNbO3, confirm an efficiency of the proposed technique.
Keywords :
identification technology; interdigital transducers; surface acoustic wave devices; surface acoustic wave transducers; 128° YX-LiNbO3; LiNbO3; SAW tags; SMUDT; directionality; external circuitry; matching; self-matched unidirectional transducers; tag antenna; Circuit synthesis; Directive antennas; Frequency; Insertion loss; Numerical simulation; Periodic structures; Piezoelectric transducers; Reflection; Samarium; Surface acoustic waves;
Conference_Titel :
Ultrasonics Symposium (IUS), 2009 IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4389-5
Electronic_ISBN :
1948-5719
DOI :
10.1109/ULTSYM.2009.5441540