Title :
Frequency hopped wireless passive sensing system with harmonic transponder antenna sensor
Author :
Haiyu Huang ; Pai-Yen Chen ; Cheng-Hsien Hung ; Gharpurey, Ranjit ; Akinwande, Deji
Author_Institution :
Dept. of ECE, Univ. of Texas at Austin, Austin, TX, USA
Abstract :
This paper presents a passive wireless sensing paradigm based on the harmonic transponder comprising an antenna covered with a metamaterial-inspired helical structure, which is sensitive to the liquid-level within. An interrogator transmits frequency hopped UHF RFID signals to the transponder, and a sniffer detects the harmonic signal from the transponder and decodes its RSSI array. A μL-resolution absolute accuracy sensing is demonstrated to support the low-cost ubiquitous liquid monitoring.
Keywords :
Internet of Things; RSSI; array signal processing; frequency hop communication; health care; helical antennas; metamaterial antennas; radiofrequency identification; signal detection; telemedicine; transponders; wireless sensor networks; μL-resolution absolute accuracy sensing; RSSI array; frequency hopped UHF RFID signals; frequency hopped wireless passive sensing system; harmonic signal detection; harmonic transponder antenna sensor; healthcare Internet-of-things; interrogator; low-cost ubiquitous liquid monitoring; metamaterial-inspired helical structure; passive wireless sensing paradigm; sniffer; wireless liquid-level monitoring; Arrays; Assembly; Containers; Helical antennas; Lead; Radiofrequency identification; RFID; antenna; frequency hopping; harmonic transponder; healthcare; internet of things; wireless sensors;
Conference_Titel :
Microwave Symposium (IMS), 2015 IEEE MTT-S International
Conference_Location :
Phoenix, AZ
DOI :
10.1109/MWSYM.2015.7167123
