Abstract
A wireless surface acoustic wave (SAW) temperature sensor was produced using langasite single crystal as a piezoelectric substrate. The properties of both solid-electrode and split-electrode interdigital transducers (IDTs) were studied by fitting the admittance curves. A miniature antenna was used and the impedance matching technique between the antenna and the IDT was investigated. The temperature characteristic in the temperature range of 20-700°C was measured. The results showed that both the SAW chip and the antenna functioned in this temperature range.
Original language | English |
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Pages (from-to) | 6124-6127 |
Number of pages | 4 |
Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
Volume | 42 |
Issue number | 9 B |
DOIs | |
Publication status | Published - 2003 Sep |
Externally published | Yes |
Keywords
- Langasite
- SAW
- Sensor
- Wireless
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)