Miniaturized SAW filter structure using unidirectional quadrature IDT couplers

Takashi Shiba, Mayumi Ide, Yuji Fujita

Research output: Contribution to journalConference articlepeer-review


A new single track structure for this unidirectional quadrature IDT coupler has been proposed to reduce a device size. Advantages of the device size and bandwidth for this structure are verified by the calculations and the experiments. The double mode IDTs structure on X-112deg.YLiTaO3 and 190 MHz center frequency are chosen for the experiment.

Original languageEnglish
Pages (from-to)2093-2096
Number of pages4
JournalProceedings of the IEEE Ultrasonics Symposium
Publication statusPublished - 2003
Event2003 IEEE Ultrasonics Symposium - Proceedings - Honolulu, HI, United States
Duration: 2003 Oct 52003 Oct 8


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