THE IDT WITH HIGH INTERNAL REFLECTION SUPPRESSION

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摘要 BasedonChen-Haus′theory,anexperimentalresearchonthereflectionofSAWfromashort-circuitedAu-gratingonYZLiNbO3andashort-circuitedAl-recessedgroovegratingonST-Xquartzisfirstpresentedinthispaperwhereananomalousreflectionphenomenaexistingintwogratingsareconfirmed.Inaddition,aresidualreflectionwhichcouldn′tbecompletelycancelledbymeansofchangingstrip-thicknessispointedoutforashort-circuitedAu-gratingonYZLiNbO3bothexperimentallyandtheoreticallythroughextendingChen-Haus′theorytoanisotropiccrystals.Finally.twokindsofIDTcomposedofsingleelectrodes:Au-electrodeonYZLiNbO3andAl-recessed-groove-electrodeonST-Xquartz,areproposedforhighinternalreflectionsuppression.TheexperimentalresultsofbandpassfiltersconstructedwiththeIDTsmentionedaboveshowagreatim-provementinpassbanddistortionandapotentialusefulnessofnewstructureinhighfrequencyrange.
作者
机构地区 不详
出处 《声学学报:英文版》 1989年4期
出版日期 1989年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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