KMITL

Permanent URI for this communityhttps://dspace.kmitl.ac.th/handle/123456789/1

Browse

Settings

Author: search.filters.author.Phongcharoenpanich, ChuwongSubject: search.filters.subject.dielectric material

Search Results

Now showing 1 - 3 of 3
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Item,
    Chipped and chipless RFID sensors for quality monitoring of light weight concrete using the radar equation
    (2016-09-06)
    Suwalak, Rattapong
    ;
    Phongcharoenpanich, Chuwong
    ;
    Torrungrueng, Danai
    Chipped and chipless RFID (Radio frequency identification) sensors for quality monitoring of light weight concrete (LWC) using the radar equation are presented. In this paper, a printed loop tag with a meander-line is employed as a chipped RFID sensor and a dual printed perpendicular square loop tag is employed as a chipless RFID sensor. The optimum parameters of the proposed RFID sensors are obtained using the CST Microwave Studio program. Both RFID sensors with/without IC chip are used to improve the accuracy of dielectric material determination. In addition, the relation between the read range (R<inf>max</inf>) and the real part of dielectric constant (<inf>r</inf>) is studied. It is found that it can be used to determine the dielectric constant of LWC.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Item,
    Dielectric material determination using the radar equation in RFID sensor applications
    (2016-03-07)
    Suwalak, Rattapong
    ;
    Phongcharoenpanich, Chuwong
    ;
    Torrungrueng, Danai
    ;
    Akkaraekthalin, Prayoot
    A radar-cross section (RCS) of passive printed tags in a radio frequency identification (RFID) is presented to determine a dielectric constant of a material under test (MUT). In this paper, a printed loop tag with a meander-line is employed as an RFID sensor. The optimum parameters of the proposed RFID sensor are obtained using the CST Microwave Studio program. This paper employs two RFID sensors with different RCS to improve the accuracy of dielectric material determination. The relation between the read range (Rmax) and the real part of dielectric constant (?r) can be used to determine the dielectric constant of MUT.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Item,
    A radar-cross section of a passive tag on dielectric material in an RFID sensor application
    (2015-08-17)
    Suwalak, Rattapong
    ;
    Phongcharoenpanich, Chuwong
    ;
    Torrungrueng, Danai
    ;
    Akkaraekthalin, Prayoot
    This paper is mainly present to a radar-cross section (RCS) of a passive tag in a radio frequency identification (RFID) sensor application. To determine qualities of a dielectric material under test (MUT) with a non-destructive testing (NDT) technique, a proposed meander-line dipole tag antenna is employed as a RFID sensor. The design and optimum parameters of the proposed RFID sensor are obtained using the CST Microwave Studio program. In this paper, instead of focusing on the scalar backscattered power based on the Friis transmission equation, we are also studying the RCS range equation to utilize for improve the accuracy of determination a qualities of MUT in a RFID sensor system. Simulated results show that the characteristics of the proposed RFID sensor such as the input impedance, antenna gain, power transmission coefficient and RCS.