Narrow electrodes on YZ-LiNbO sub(3) as an alternative to etched grooves for dispersive delay lines

Narrow electrodes on YZ-LiNbO sub(3) as an alternative to etched grooves for dispersive delay lines

Narrow, open-circuited aluminum electrodes can provide controllable, weak reflectivity necessary for many applications such as surface acoustic wave (SAW) tags and dispersive delay lines (DDLs). We show, using finite- and boundary element method (FEM-BEM) based simulations and experiments, that a re...

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Veröffentlicht in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2008-01, Vol.55 (2)
Hauptverfasser: Harma, S, Kim, Che-Uk, Balashov, S M, Plessky, V P
Format: Artikel
Sprache:eng
Schlagworte:
Boundary element method
Delay lines
Electrodes
Grooves
Mathematical analysis
Reflectivity
Surface acoustic waves
Wavelengths
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Zusammenfassung:Narrow, open-circuited aluminum electrodes can provide controllable, weak reflectivity necessary for many applications such as surface acoustic wave (SAW) tags and dispersive delay lines (DDLs). We show, using finite- and boundary element method (FEM-BEM) based simulations and experiments, that a reflectivity of 0.3% per wavelength can be achieved easily and controlled by varying the electrode width.
ISSN:0885-3010
DOI:10.1109/TUFFC.2008.667