Inductively coupled saw device and method for making the same

Details Inductively coupled saw device and method for making the same Inductively coupled saw device and method for making the same

H - Electricity

03

H

H03H 9/145 (2006.01) H03H 9/02 (2006.01)

Patent

CA 2068513

A surface acoustic wave (SAW) device (10) includes a SAW substrate having an exposed surface; and at least one SAW transducer (14), disposed on said surface of said substrate; for converting between electrical energy and SAW energy that traverses said surface along at least one acoustic path. A conductive loop (22); disposed an said surface of the substrate; is electrically connected at its ends to the transducer. The conductive loop thus forms an inductive element for coupling energy into and out of said SAW device.

Dispositif à onde acoustique de surface (OAS) (10) comprenant un substrat d'OAS possédant une surface exposée; et au moins un transducteur d'OAS (14) disposé sur ladite surface dudit substrat, de façon à permettre la conversion entre l'énergie électrique et l'énergie d'OAS qui traverse ladite surface le long d'au moins un chemin acoustique. Une boucle conductive (22) placée sur ladite surface du substrat, est raccordée électriquement par ses extrémités au transducteur. La boucle conductive forme ainsi un élément inductif permettant le transfert d'énergie vers et depuis ledit dispositif à onde acoustique de surface.

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