TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed)
A1  - Christ, Andreas
A1  - Scholl, Gerd
A1  - Ruile, Werner
A1  - Russer, Peter
A1  - Weigel, Robert
T1  - Efficient Analysis Tool for Coupled-SAWResonator Filters
JF  - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
N2  - The advantages of the coupled-mode (COM) formalism and the transmission-matrix approach are combined in order to create exact and computationally efficient analysis and synthesis tools for the design of coupled surface acoustic wave resonator filters. The models for the filter components, in particular gratings, interdigital transducers (IDTs) and multistrip couplers (MSCs), are based on the COM approach that delivers closed-form expressions. To determine the pertinent COM parameters, the COM differential equations are solved and the solution is compared with analytically derived expressions from the transmission-matrix approach and the Green's function method. 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, a two-pole, acoustically coupled resonator filter at 914.5 MHz on AT quartz is investigated. Excellent agreement between theory and measurement is found.
KW  - coupled-mode formalism
KW  - (COM)
KW  - transmission-matrix approach
KW  - Resonator
Y1  - 1991
SN  - 0885-3010 (Print)
SS  - 0885-3010 (Print)
SN  - 1525-8955 (Elektronisch)
SS  - 1525-8955 (Elektronisch)
U6  - https://doi.org/10.1109/58.79609
DO  - https://doi.org/10.1109/58.79609
PM  - 18267581
VL  - 38
IS  - 3
SP  - 243
EP  - 251
PB  - IEEE
CY  - New York
ER  -