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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Scholl, G. Christ, A. Grassl, H.P. Ruile, W. Russer, P. Weigel, R. |
| Copyright Year | 1989 |
| Description | Author affiliation: Lehrstuhl fuer Hochfrequenztech., Tech. Univ. Muenchen, West Germany (Scholl, G.) |
| Abstract | The advantages of the coupling-of-modes (COM) formalism and the transmission-matrix approach are combined to create exact and computationally efficient analysis and synthesis CAD tools for the design of SAW-resonator filters. The models for the filter components, especially gratings, interdigital transducers (IDTs). and multistrip couplers (MSCs), are based on the COM approach, which delivers closed-form expressions. In order to determine the relevant COM parameters, the integrated COM differential equations are compared with analytically derived expressions from the transmission-matrix approach. The most important second-order effects such as energy storage, propagation loss and mechanical and electrical loading are fully taken into account. As an example, the authors investigate a two-pole, acoustically coupled resonator filter at 914.5 MHz on AT quartz. Excellent agreement between theory and measurement is found. |
| Starting Page | 135 |
| Ending Page | 140 |
| File Size | 456433 |
| Page Count | 6 |
| File Format | |
| DOI | 10.1109/ULTSYM.1989.66973 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1989-10-03 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Filters Couplings Design automation Gratings Transducers Couplers Closed-form solution Differential equations Energy storage Propagation losses |
| Content Type | Text |
| Resource Type | Article |
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