Title :
Resonance properties of APTUDT on SAW vs. electrode track apertures
Author :
Biryukov, Sergey V. ; Schmidt, Heidemarie ; Weihnacht, M.
Author_Institution :
Dept. of Magn. & Acoust. Resonances, IFW Dresden, Dresden, Germany
Abstract :
A novel type of interdigital transducers (IDT) on surface acoustic waves with two quarter-wavelength electrodes per one-wavelength IDT period was proposed recently for the multi-track solution consisting of alternating active IDT tracks and passive reflector tracks. Such 2D-periodic structure permits to implement single-phase unidirectional transducer behavior as well as to create non-reflective IDT for 2.45 GHz (ISM frequency band) in spite of the existing standard lithography limitations. The objective of this work is to investigate the influence of active and passive track apertures on the resonance properties of the new structure.
Keywords :
electrochemical electrodes; interdigital transducers; periodic structures; surface acoustic waves; 2D-periodic structure; APTUDT; ISM frequency band; SAW vs. electrode track apertures; active track apertures; alternating active IDT tracks; interdigital transducers; multitrack solution; nonreflective IDT; one-wavelength IDT period; passive reflector tracks; passive track apertures; single-phase unidirectional transducer behavior; standard lithography limitations; surface acoustic waves; two quarter-wavelength electrodes; Apertures; Electrodes; Periodic structures; Resonant frequency; Surface acoustic waves; Transducers;
Conference_Titel :
Ultrasonics Symposium (IUS), 2013 IEEE International
Conference_Location :
Prague
Print_ISBN :
978-1-4673-5684-8
DOI :
10.1109/ULTSYM.2013.0275
