A single phase unidirectional surface acoustic wave...

H - Electricity – 03 – H

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H03H 9/25 (2006.01)

Patent

CA 2542328

A unidirectional transducer (100) for a surface acoustic wave (SAW) device. In one embodiment the device includes a defined area on a piezoelectric substrate (150) within which is located an open circuit reflector (130) perpendicular to the SAW direction of propagation (170); and a pair of low reflectivity transducer electrodes (140) located within the defined area and connected to opposing bus bars (160), the electrodes (140) perpendicular to the direction of the SAW propagation (170) and positioned with the excitation center of the pair of electrodes (140) located about seven-eighths of a Rayleigh wavelength at a center frequency of the SAW from the reflector (130).

L'invention concerne un transducteur unidirectionnel équipant un dispositif de traitement des ondes acoustiques de surface (SAW). Dans un mode de réalisation, le dispositif comprend (1) une zone définie sur un substrat piézoélectrique dans laquelle se trouve un réflecteur à circuit ouvert perpendiculaire au sens de propagation des SAW; et deux électrodes de transducteur à faible réflectivité disposées à l'intérieur de la zone définie et connectées à des barres omnibus opposées, lesdites électrodes étant perpendiculaires au sens de propagation des SAW et placées de sorte que leur centre d'excitation se situe autour des sept-huitième d'une longueur d'onde de Rayleigh, à une fréquence centrale des SAW, en partant du réflecteur.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

A single phase unidirectional surface acoustic wave... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with A single phase unidirectional surface acoustic wave..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A single phase unidirectional surface acoustic wave... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1684211

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.