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

fYear

2013

fDate

21-25 July 2013

Firstpage

1073

Lastpage

1076

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2013 IEEE International

Conference_Location

Prague

ISSN

1948-5719

Print_ISBN

978-1-4673-5684-8

Type

conf

DOI

10.1109/ULTSYM.2013.0275

Filename

6724968