发明名称 SURFACE ELASTIC WAVE ELEMENT
摘要 PURPOSE:The material of uniform sound impedance is adhered on the piezoelectric substrate surface to eliminate surface wave reflection. In this way, both insertion loss and spurious can be decreased.
申请公布号 JPS5232650(A) 申请公布日期 1977.03.12
申请号 JP19750108793 申请日期 1975.09.08
申请人 KINSEKISHIYA KENKIYUUSHIYO KK 发明人 DOI ARATA
分类号 H03H9/145;H03H3/08;H03H9/02 主分类号 H03H9/145
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