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Author: search.filters.author.Suwalak, RattapongSubject: search.filters.subject.Chipless RFID sensor

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    Recent Advances in RFID Sensors for Construction Material Monitoring Applications (Invited Paper)
    (2018-07-02)
    Suwalak, Rattapong
    ;
    Lertsakwimarn, Kittima
    ;
    Phongcharoenpanich, Chuwong
    ;
    Akkaraekthalin, Prayoot
    ;
    Torrungrueng, Danai
    This paper presents recent advances in radiofrequency identification (RFID) sensors for monitoring applications of construction material products (CMPs) (e.g., light weight concrete (LWC) and concrete). These RFID sensors can offer both identification and sensing capabilities simultaneously without any additional sensors. The research and development of both chipped and chipless RFID sensors will be discussed during presentation, including their interesting applications.
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    Dual-band chipless RFID sensor for a material quality monitoring application
    (2017-01-17)
    Suwalak, Rattapong
    ;
    Lertsakwimarn, Kittima
    ;
    Phongcharoenpanich, Chuwong
    ;
    Torrungrueng, Danai
    The dual-band chipless RFID sensor is proposed to employ as a wireless material quality monitoring application. A printed perpendicular rectangular loop tag and a printed concentric rectangular loop tag are designed and optimized using the CST Microwave Studio program. The chipless RFID sensors are located on a material surface to determine qualities of a material under test. From numerical results, it is found that the proposed dual-band chipless RFID-sensor has a significant different radar cross section (RCS) compared with the single-band one. Therefore, both RFID sensors can be used together in the material quality monitoring system to improve the accuracy.