{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T21:12:56Z","timestamp":1770153176900,"version":"3.49.0"},"reference-count":41,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2017,8,10]],"date-time":"2017-08-10T00:00:00Z","timestamp":1502323200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Science Foundation of SZU","award":["no. 2017067"],"award-info":[{"award-number":["no. 2017067"]}]},{"DOI":"10.13039\/501100001809","name":"NSFC","doi-asserted-by":"publisher","award":["no. 51302173"],"award-info":[{"award-number":["no. 51302173"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["no. 2016YFB0402705"],"award-info":[{"award-number":["no. 2016YFB0402705"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A surface acoustic wave based passive temperature sensor capable of multiple access is investigated. Binary Phase Shift Keying (BPSK) codes of eight chips were implemented using a reflective delay line scheme on a Y-Z LiNbO3 piezoelectric substrate. An accurate simulation based on the combined finite- and boundary element method (FEM\/BEM) was performed in order to determine the optimum design parameters. The scaling factor \u2018s\u2019 and time delay factor \u2018\u03c4\u2019 were extracted using signal processing techniques based on the wavelet transform of the correlation function, and then evaluated at various ambient temperatures. The scaling factor \u2018s\u2019 gave a more stable and reliable response to temperature than the time delay factor \u2018\u03c4\u2019. Preliminary results show that the sensor response is fast and consistent subject to ambient temperature and it exhibits good linearity of 0.9992 with temperature varying from 0 to 130 \u00b0C.<\/jats:p>","DOI":"10.3390\/s17081849","type":"journal-article","created":{"date-parts":[[2017,8,10]],"date-time":"2017-08-10T10:34:35Z","timestamp":1502361275000},"page":"1849","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Design and Implementation of 2.45 GHz Passive SAW Temperature Sensors with BPSK Coded RFID Configuration"],"prefix":"10.3390","volume":"17","author":[{"given":"Chen","family":"Fu","sequence":"first","affiliation":[{"name":"Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yabing","family":"Ke","sequence":"additional","affiliation":[{"name":"Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Min","family":"Li","sequence":"additional","affiliation":[{"name":"Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jingting","family":"Luo","sequence":"additional","affiliation":[{"name":"Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Honglang","family":"Li","sequence":"additional","affiliation":[{"name":"Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guangxing","family":"Liang","sequence":"additional","affiliation":[{"name":"Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ping","family":"Fan","sequence":"additional","affiliation":[{"name":"Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Energy, Shenzhen University, Shenzhen 518060, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2017,8,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"6910","DOI":"10.3390\/s130606910","article-title":"Surface Acoustic Wave Devices for Harsh Environment Wireless Sensing","volume":"13","author":"Greve","year":"2013","journal-title":"Sensors"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"745","DOI":"10.1016\/S0957-4158(99)00030-6","article-title":"Wireless identification and sensing using surface acoustic wave devices","volume":"9","author":"Springer","year":"1999","journal-title":"Mechatronics"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Fachberger, R., Bruckner, G., Hauser, R., and Reindl, L. 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