Characterization of the Interactions Between a 60-GHz Antenna and the Human Body in an Off-Body Scenario

2012 ◽  
Vol 60 (12) ◽  
pp. 5958-5965 ◽  
Author(s):  
Nacer Chahat ◽  
Maxim Zhadobov ◽  
Laurent Le Coq ◽  
Stanislav I. Alekseev ◽  
Ronan Sauleau
Keyword(s):  
Human Body ◽  
60 Ghz

scholarly journals Empirical Effects of Dynamic Human-Body Blockage in 60 GHz Communications

2018 ◽  
Vol 56 (12) ◽  
pp. 60-66 ◽  
Author(s):  
Christopher Slezak ◽  
Vasilii Semkin ◽  
Sergey Andreev ◽  
Yevgeni Koucheryavy ◽  
Sundeep Rangan
Keyword(s):  
Human Body ◽  
60 Ghz

scholarly journals Synthesis and Characterization of Human Body Trace Elements Substituted Hydroxyapatite for a Bioactive Material

2013 ◽  
Vol 25 (12) ◽  
pp. 6540-6544 ◽  
Author(s):  
Shitao Song ◽  
Suxia Wu ◽  
Qi Lian ◽  
Youshun Peng ◽  
Xuefang Zheng ◽  
...  
Keyword(s):  
Trace Elements ◽  
Human Body ◽  
Synthesis And Characterization ◽  
Bioactive Material

scholarly journals Characterization of Optically-Reconfigurable Metasurfaces by a Free Space Microwave Bistatic Technique

2020 ◽  
Vol 10 (12) ◽  
pp. 4353
Author(s):  
Houssemeddine Krraoui ◽  
Charlotte Tripon-Canseliet ◽  
Ivan Maksimovic ◽  
Stefan Varault ◽  
Gregoire Pillet ◽  
...  
Keyword(s):  
Near Infrared ◽  
Optical Power ◽  
Frequency Selective Surface ◽  
Infrared Region ◽  
Photon Absorption ◽  
60 Ghz ◽  
Frequency Range ◽  
Specific Incident ◽  
Absorption Phenomenon

Microwave performance extraction of optically-controlled squared frequency-selective surface (FSS) structures printed on highly resistive (HR) silicon substrate are presented, from a innovative bistatic microwave photonic characterization technique operating in the 40 to 60 GHz frequency range, commonly used for radar cross section (RCS) measurements. According to typical physical photon absorption phenomenon occurring in photoconductive materials, these structures demonstrate experimentally a bandpass filtering frequency response cancellation through reflection coefficient measurements, under specific incident collective illumination in the Near-infrared region (NIR). This behaviour is attributed to their microwave surface impedance modification accordingly to the incident optical power, allowing ultrafast reconfigurability of such devices by optics

scholarly journals Fabrication and Characterization of Wrapped Metal Yarns-based Fabric Temperature Sensors

Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1549
Author(s):  
Qian Yang ◽  
Xi Wang ◽  
Xin Ding ◽  
Qiao Li
Keyword(s):  
Mechanical Properties ◽  
Body Temperature ◽  
Heat Source ◽  
Human Body ◽  
Temperature Sensors ◽  
Temperature Sensitive ◽  
Maximum Strain ◽  
Human Body Temperature ◽  
Fabrication And Characterization

Textile temperature sensors are highly in demanded keep a real-time and accurate track of human body temperature for identification of healthy conditions or clinical diagnosis. Among various materials for textile temperature sensors, temperature-sensitive metal fibers have highest precision. However, those metal fibers are mechanically too weak, and break constantly during the weaving process. To enhance the mechanical strength of the metal fibers, this paper proposes to make wrapped metal fibers using wrapping technology, and characterize the effect of wrapped metal yarns on both mechanical properties and sensing behaviors. The wrapped yarns were woven into fabrics, forming the fabric temperature sensors. Results show that strength and maximum strain of the wrapped yarns are 2.69 and 1.82 times of pure Pt fibers. The response time of fabric temperature sensors using wrapped yarns was observed as 0.78 s and 1.1 s longer compared to that using Pt fibers when front and back sides contacted heat source, respectively. It is recommended that the wrapping method should be implemented for the protection of Pt fibers in fabric temperature sensors.

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