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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.9 P.997~1003

http://doi.org/10.1631/jzus.2005.A0997


SAW Reflection and Scattering by Electrodes


Author(s):  WANG Wei-biao, HAN Tao, ZHANG Xiao-dong, WU Hao-dong, SHUI Yong-an

Affiliation(s):  State Key Laboratory of Modern Acoustics, Nanjing University, Nanjing 310093, China; more

Corresponding email(s):   than@sjtu.edu.cn, yashui@nju.edu.cn

Key Words:  SAW reflection, SAW scattering, Green&rsquo, s function


WANG Wei-biao, HAN Tao, ZHANG Xiao-dong, WU Hao-dong, SHUI Yong-an. SAW Reflection and Scattering by Electrodes[J]. Journal of Zhejiang University Science A, 2005, 6(9): 997~1003.

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author="WANG Wei-biao, HAN Tao, ZHANG Xiao-dong, WU Hao-dong, SHUI Yong-an",
journal="Journal of Zhejiang University Science A",
volume="6",
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pages="997~1003",
year="2005",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.A0997"
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%T SAW Reflection and Scattering by Electrodes
%A WANG Wei-biao
%A HAN Tao
%A ZHANG Xiao-dong
%A WU Hao-dong
%A SHUI Yong-an
%J Journal of Zhejiang University SCIENCE A
%V 6
%N 9
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%@ 1673-565X
%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.A0997

TY - JOUR
T1 - SAW Reflection and Scattering by Electrodes
A1 - WANG Wei-biao
A1 - HAN Tao
A1 - ZHANG Xiao-dong
A1 - WU Hao-dong
A1 - SHUI Yong-an
J0 - Journal of Zhejiang University Science A
VL - 6
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SP - 997
EP - 1003
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Y1 - 2005
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2005.A0997


Abstract: 
A rigorous analysis of surface acoustic wave (SAW) reflection and scattering by electrodes is of paramount importance in the design of SAW identification tags and sensors. In this paper, a new method based on green&rsquo;s function concept is used to study reflection and scattering coefficients. By this method the reflection coefficient with its phase angle, transmission coefficient, and bulk wave scattering coefficient, can be obtained rapidly and accurately. To get precise result, the influence of static charge must be taken into account. In the work, we successfully cancelled out the effect of static charge and the validity of the results was checked. As an example, the reflection, transmission and scattering coefficients of a single grounded electrode on 128° YX LiNbO3 is shown.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Hartmann, C., 2004. Design of Global SAW RFID Tag Devices. Proc. Second Int. Symp. on Acoustic Wave Devices for Future Mobile Commun. Syst., Chinba, p.15-19.

[2] Lehtonen, S., Plessky, V.P., Salomma, M.M., 2003. Short Reflectors Operating at Fundamental and Second Harmonics on 128° LiNbO3. 2003 IEEE UFFC Conference.

[3] Lehtonen, S., Plessky, V.P., Bereux, N., Salomma, M.M., 2004a. Minimum-loss short reflectors on 128° LiNbO3. IEEE Trans. UFFC-51, 10:1203-1205.

[4] Lehtonen, S., Plessky, V.P., Bereux, N., Salomma, M.M., 2004b. Performance of Short Reflectors on 128° LiNbO3. 2004 IEEE UFFC Conference, U5-D-1, Montreal.

[5] Lehtonen, S., Plessky, V.P., Salomma, M.M., 2004c. Short reflectors operating at fundamental and second harmonics on 128° LiNbO3. IEEE Trans. UFFC-51, 3:343-351.

[6] Milsom, R.F., Reilly, N.H.C., Redwood, M., 1977. Analysis of excitation and detection of surface and bulk acoustic waves by interdigital transducers. IEEE Trans., SU-24(3):147-166.

[7] Vantura, P., Hode, J.M., Lopes, B., 1995. Rigorous Analysis of Finite SAW Devices with Arbitrary Electrode Geometries. IEEE Ultrasonics Symposium Proc., p.257-262.

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