ArticleScientific reports2016
A zero power harmonic transponder sensor for ubiquitous wireless μL liquid-volume monitoring.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Innovations in Biosensor Technologies for Healthcare Diagnostics and Therapeutic Drug Monitoring: Applications, Recent Progress, and Future Research Challenges.Sensors (Basel, Switzerland) · 2024Review
- Review on Recent Advances and Applications of Passive Harmonic RFID Systems.IEEE journal of radio frequency identification · 2023Article
- PTX-symmetric metasurfaces for sensing applications.Frontiers of optoelectronics · 2021Article
- Wireless Battery-Free Harmonic Communication System for Pressure Sensing.Micromachines · 2020Article
- A Review of Passive RFID Tag Antenna-Based Sensors and Systems for Structural Health Monitoring Applications.Sensors (Basel, Switzerland) · 2017Review
- Chemical-sensitive graphene modulator with a memory effect for internet-of-things applications.Microsystems & nanoengineering · 2016Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Autonomous liquid-volume monitoring is crucial in ubiquitous healthcare. However, conventional approach is based on either human visual observation or expensive detectors, which are costly for future pervasive monitoring. Here we introduce a novel approach based on passive harmonic transponder antenna sensor and frequency hopping spread spectrum (FHSS) pattern analysis, to provide a very low cost wireless μL-resolution liquid-volume monitoring without battery or digital circuits. In our conceptual demonstration, the harmonic transponder comprises of a passive nonlinear frequency multiplier connected to a metamaterial-inspired 3-D antenna designed to be highly sensitive to the liquid-volume within a confined region. The transponder first receives some FHSS signal from an interrogator, then converts such signal to its harmonic band and re-radiates through the antenna sensor. The harmonic signal is picked up by a sniffer receiver and decoded through pattern analysis of the high dimensional FHSS signal strength data. A robust, zero power, absolute accuracy wireless liquid-volume monitoring is realized in the presence of strong direct coupling, background scatters, distance variance as well as near-field human-body interference. The concepts of passive harmonic transponder sensor, metamaterial-inspired antenna sensor, and FHSS pattern analysis based sensor decoding may help establishing cost-effective, energy-efficient and intelligent wireless pervasive healthcare monitoring platforms.
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