摘要 |
A SAW filter structure (300) includes two SAW resonators being symmetrically positioned along parallel tracks. The resonators include centrally positioned resonator gaps (368, 378) which are opposingly positioned. A multistrip coupler (330) for acoustically coupling the resonators extends between the resonator gaps and includes a plurality of equally spaced strips (8812) which are spaced to permit omni-directional projection of acoustic waves from the opposing sides of the multi strip coupler.
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