Surface acoustic wave devices using optimized cuts of lithium niobate (LiNbO3)
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 9, 2003
Grant Date -
May 1, 2003
app pub date -
Oct 25, 2001
filing date -
Oct 25, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A surface acoustic wave device includes a piezoelectric substrate of a single crystal LiNbO.sub.3 and an electrode pattern provided on a surface of the piezoelectric substrate which forms a resonator having an electrode thickness in a range of about 0.1% to about 8% of an acoustic wavelength of a surface acoustic wave excited on the surface of the substrate. The piezoelectric substrate has an orientation defined by Euler angles (.lambda.,.mu.,.theta.), with angle .lambda. in a range from -20.degree. to +20.degree., angle .mu. in a range from about -45.degree. to about -10.degree., and angle .theta. in a range from about (-1.16.lambda.-1.5).degree. to (-1.16.lambda.+1.5).degree., wherein one of angle .lambda. and .theta. is not equal to zero degrees. Such orientations simultaneously combined with an optimized propagation loss at resonant and anti-resonant frequencies provide for improved performance in RF applications.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully