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Related Experiment Videos

Cubic temperature dependence for SAWs on X-cut quartz.

R T Webster1, J H Silva

  • 1Rome Air Dev. Center, Hanscom AFB, MA.

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
|January 1, 1988
PubMed
Summary
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Surface acoustic wave (SAW) delay lines on X-cut quartz exhibit a cubic frequency-temperature dependence. Transducer placement significantly impacts SAW device performance and temperature sensitivity.

Area of Science:

  • Materials Science
  • Acoustics
  • Physics

Background:

  • Surface acoustic wave (SAW) devices are crucial for various electronic applications.
  • Understanding the temperature dependence of SAW devices is essential for stable operation.
  • X-cut quartz is a common piezoelectric material used in SAW devices.

Purpose of the Study:

  • To experimentally investigate the frequency and insertion loss temperature dependence of SAW delay lines on X-cut quartz.
  • To analyze the influence of transducer placement on the temperature sensitivity of SAW devices.

Main Methods:

  • Fabrication of SAW delay lines on X-cut quartz.
  • Experimental setup for measuring temperature sensitivity.
  • Analysis of frequency and insertion loss variations with temperature.

Related Experiment Videos

Main Results:

  • A cubic relationship between frequency and temperature was observed for the SAW delay lines.
  • The relative position of transducers strongly affected the frequency-temperature curve.
  • Transducer placement also influenced the insertion loss-temperature characteristics.

Conclusions:

  • The frequency of SAW delay lines on X-cut quartz shows a cubic dependence on temperature.
  • Transducer positioning is a critical factor in optimizing SAW device temperature stability and performance.