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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Baghai-Wadji, A.R. Walter, G.G. |
| Copyright Year | 2005 |
| Description | Author affiliation: Vienna Univ. of Technol., Austria (Baghai-Wadji, A.R.) |
| Abstract | The boundary element method (BEM) is a powerful numerical technique for obtaining approximate solutions in surface acoustic wave (SAW) devices. The "impedance" matrices arising in the BEM applications are typically dense. This property is a serious bottleneck in most applications. Wavelets have been proposed to remedy this shortcoming. However, much remains to be achieved in constructing problem-specific wavelets, which would guarantee the desired degree of sparseness. In this work, we generalize our previous ideas and construct scaling functions and wavelets based on the far-field asymptotic tails of the SAW and bulk acoustic wave (BAW) Green's functions in the spectral domain. The utilized asymptotic terms correspond to the quasi-static near-field expansion terms of the Green's functions. The resulting wavelets turn out to be B-spline wavelets, and thus, satisfy the criteria of the multiresolution analysis upon construction. |
| Starting Page | 90 |
| Ending Page | 93 |
| File Size | 543924 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780384121 |
| ISSN | 10510117 |
| DOI | 10.1109/ULTSYM.2004.1417675 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-08-23 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Wavelet domain Tail Green's function methods Surface acoustic wave devices Acoustic waves Surface acoustic waves Wavelet analysis Boundary element methods Surface impedance Spline |
| Content Type | Text |
| Resource Type | Article |
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