A wireless surface acoustic wave temperature sensor using langasite as substrate material for high-temperature applications

Shou Qi Wang, Jiro Harada, Satoshi Uda

Research output: Contribution to journalArticle

38 Citations (Scopus)

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 languageEnglish
Pages (from-to)6124-6127
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume42
Issue number9 B
DOIs
Publication statusPublished - 2003 Sep

Keywords

  • Langasite
  • SAW
  • Sensor
  • Wireless

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'A wireless surface acoustic wave temperature sensor using langasite as substrate material for high-temperature applications'. Together they form a unique fingerprint.

  • Cite this