{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T16:08:04Z","timestamp":1774627684949,"version":"3.50.1"},"reference-count":35,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2022,8,12]],"date-time":"2022-08-12T00:00:00Z","timestamp":1660262400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Shanghai Institute of Technology and Guangzhou Xinchen Auto Parts Co., LTD.","award":["No. J2021-281"],"award-info":[{"award-number":["No. J2021-281"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Chipless radio frequency identification (RFID) technology has been widely used in the field of structural health monitoring (SHM), but most of the current research mainly focuses on the detection of mechanical properties and there are few studies on the multi-physical parameters (for example, temperature and humidity) in the climatic environment around the structure. Thus, it is necessary to design a small and compact sensor for multi-parameter detection. This paper proposes a multi-parameter chipless RFID sensor based on microstrip coupling, which supports 4-bit ID code and integrates two detection functions of temperature and humidity. Through linear normalization fitting, the sensitivity of the sensor is about 2.18 MHz\/RH in the ambient relative humidity test and the sensitivity of the sensor is about 898.63 KHz\/\u00b0C in the experimental test of water bath heating from 24.6 \u00b0C to 75 \u00b0C. In addition, this paper proposes an engineering application detection method, designs a lightweight dynamic spectrum detection and wireless transmission platform based on a lightweight vector network analyzer (VNA) and realizes the real-time extraction and transmission of RFID spectrum sensing data. The means are more flexible and economical than traditional experimental scenarios.<\/jats:p>","DOI":"10.3390\/s22166027","type":"journal-article","created":{"date-parts":[[2022,8,15]],"date-time":"2022-08-15T23:44:03Z","timestamp":1660607043000},"page":"6027","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Characteristic Analysis of a Chipless RFID Sensor Based on Multi-Parameter Sensing and an Intelligent Detection Method"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0774-1154","authenticated-orcid":false,"given":"Luyi","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Electrical and Electronic Engineering, Shanghai Institute of Technology, Shanghai 201418, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lan","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Electrical and Electronic Engineering, Shanghai Institute of Technology, Shanghai 201418, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3955","DOI":"10.1109\/JIOT.2020.3026729","article-title":"A Novel \u201cSmart Skin\u201d Sensor for Chipless RFID-Based Structural Health Monitoring Applications","volume":"8","author":"Dey","year":"2021","journal-title":"IEEE Internet Things J."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"7476","DOI":"10.1109\/JIOT.2020.3039277","article-title":"Patch-Antenna-Based Structural Strain Measurement Using Optimized Energy Detection Algorithm Applied on USRP","volume":"8","author":"Wan","year":"2020","journal-title":"IEEE Internet Things J."},{"key":"ref_3","first-page":"1","article-title":"A Novel Information Fusion Method of RFID Strain Sensor Based on Microstrip Notch Circuit","volume":"71","author":"Wan","year":"2022","journal-title":"IEEE Trans. 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