Passive wireless smart-skin sensor using RFID-based folded patch antennas

Yi, Xiaohua; Wu, Tai-Hsien; Wang, Yang; Leon, Roberto T.; Tentzeris, Manos M.; Lantz, Gabriel

doi:10.1080/19475411.2010.545450

Cited by 90 publications

(80 citation statements)

References 20 publications

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“…When strain is applied on the sensor, the length of electrical current path changes accordingly, and thus the resonance frequency changes. This change in resonance frequency of the patch antenna sensor can be wirelessly detected through RFID technology (Yi et al, 2011). An RFID reader emits a wireless interrogation signal to the sensor, which in turn harnesses energy from the signal for its own operation.…”

Section: Rosette Strain-sensing Mechanism Of Wireless Patch Antenna Smentioning

confidence: 99%

“…Most studies of patch antenna strain sensors have been limited to uniaxial measurement (Yi et al, 2011(Yi et al, , 2014. In order to measure an arbitrary surface strain field, strain rosettes (Boresi and Schmidt, 2002) made of folded patch antennas or slotted patch antennas need to be deployed.…”

Section: Strain Rosettes Of Antenna Sensorsmentioning

confidence: 99%

“…Meanwhile, Occhiuzzi et al (2011) demonstrated the relationship between strain and electromagnetic behaviours of a meander-line RFID antenna sensor. In order to reduce the size of an RFID patch antenna sensor, Yi et al (2011) proposed an antenna folding technique using vias and validated the performance of the folded patch antenna sensor by tensile experiments. To achieve further size reduction of the RFID patch antenna sensor, slots are added on the top copper cladding to provide a detoured current path, the length of which determines antenna resonance frequency (Yi et al, 2013a(Yi et al, , 2013b.…”

Section: Introductionmentioning

confidence: 99%

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Patch antenna sensor rosettes for surface strain measurement

Li-Dan

ChoChunhee

Wang

2017

Proceedings of the Institution of Civil Engineers - Smart Infra

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Passive (battery-free) wireless patch antenna sensors have been developed in recent years for strain sensing, to provide convenient and low-cost instrumentation. Despite past efforts, current analytical and experimental studies have mainly focused on performance in single-axial measurement, which is simple and unrealistic from typically encountered arbitrary plane stress fields. This paper presents strain sensor rosettes made of folded patch antennas and slotted patch antennas for measuring an arbitrary surface strain (plane stress) field. The transverse strain effect of both sensors is discussed and has been validated through laboratory experiments. Multiphysics coupled simulation is conducted to describe accurately the mechanical and electromagnetic behaviours of antenna sensors.Resonance frequency shifts of the antenna sensors are used to derive the three strain components in an arbitrary plane stress scenario -that is, two normal and one shear strain components. Both numerical studies and experimental validations have been performed.

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Section: Rosette Strain-sensing Mechanism Of Wireless Patch Antenna Smentioning

confidence: 99%

Section: Strain Rosettes Of Antenna Sensorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Patch antenna sensor rosettes for surface strain measurement

Li-Dan

ChoChunhee

Wang

2017

Proceedings of the Institution of Civil Engineers - Smart Infra

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“…8 Structural Health Monitoring RFID modules have been developed that make use of printable sensors. 9 When integrated with wireless data transmission, this approach enables a low cost distributed sensing capability. Figure 2 shows an example of one such sensor, a Polymer doped UHF RFID wireless sensor for humidity.…”

Section: Sensor Technologymentioning

confidence: 99%

Ubiquitous Wearable Electrochemical Sensors

Arriaga

Findlay

Hesketh

et al. 2016

Electrochem. Soc. Interface

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Wearable sensors are a topic of increasing interest, with market growth projected to be 40% or more over the next 5 years, soon reaching billions in sales. These sensors can be divided into in-body, on-body, and around-the-body sensing. Examples of in-body sensing include the temperature sensor you can swallow and the underskin glucose delivery systems with embedded sensors. On-body skin patches have been built for body temperature, blood oxygen saturation (SPO 2 ), heart-rate monitoring and more. Wearable or personal mobile sensors you carry by incorporating them in cellphones and other mobile platforms, for example the Drayson Clean Air, are becoming more prevalent. These devices can warn you of pollutant sources or perform breath analysis for alcohol, carbon monoxide, or hydrogen, serving as diagnostics for disease or in-treatment programs. Sensors can also be divided by market application, be it health, medicine, sport, diet, safety, environment, well-being, or a myriad of other personal aids to our daily living. In this category one can find everything from smart watches to smart clothing! Ubiquitous integrated sensor arrays are becoming a reality and progress in this domain can be seen each month. The promise is that everyone and everything will be connected via wireless data collection, and services like healthcare will be brought to everyone, everywhere, anytime, for virtually any need. Currently, there are a multitude of distributed sensors, e.g., the Internet of Things (IoT), Pere, et al.1 These sense the environment and provide applications in home automation, home safety and comfort, and personal health. At a macro level they provide data for smart cities, smart agriculture, and for water conservation and energy efficiency. Other applications include supply chain management, transportation, and logistics. While regional atmospheric information is already uploaded to the web (e.g., EPA websites) and are made available for public perusal (e.g., airnow.gov), the promise is that new wearable sensors will make this information available to the individual immediately, on a local basis. This will lead to new areas of application and will undoubtedly significantly impact our health and well-being.Methods for rapid prototyping of sensors and inexpensive fabrication methods are being developed for flexible substrates.2 This makes wearable sensor technology available that requires a fraction of the power of traditional sensors. The added bonus is that these wearable sensors are cost-competitive with those achieved utilizing MEMS fabrication methods. 3,4 Sensor TechnologyThere are many technologies for sensing that are common in wearable applications including mechanical, optical, thermal, magnetic, and solid-state electronic and electrochemical-based methods. Each has its forte for certain variables useful in wearable products. Mechanical sensors like accelerometers can sense motion for exercise or sleep monitoring. People typically do not want an accelerometer but rather the sensor in a system with electronics...

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“…The utilization of microstrip antenna sensors to stress/deformation evaluation or crack growth measurement became an object of interest of many researchers in the last few years [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. Both mentioned applications rely on the reflection coefficient S 11 study.…”

Section: Introductionmentioning

confidence: 99%