P1-33 超低速薄膜/圧電性構造弾性表面波基板と高反射係数をもつ広帯域共振器及び低損失一方向性変換器の解析と実験(ポスター発表)

概要

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The high performance properties of SAW resonators, unidirectional transducer using the internal reflections are required the high reflectivity and low propagation loss under the very thin film conditions. In this paper, the theoretical and experimental results of SAW resonators, unidirectional SAW normalized and dispersive transducers using a gratings of super low velocity thin films on piezoelectric substrate structure with large reflectivitys are described. The thin films have the very low velocities below 1000m/s and low propagation attenuations for SAW. The results show the good admittance characteristics for resonators and very low insertion loss of 1.5dB for unidirectional filters at the thickness of H/λ=0.015.
超音波エレクトロニクスの基礎と応用に関するシンポジウム運営委員会の論文
2006-11-15