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Subject: search.filters.subject.Polarimetric measurement

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    Polarimetric transmission loss of RFID antenna at 2.4 GHz for short range systems
    (2009-12-01)
    Duangsuwan, Sarun
    ;
    Promwong, Sathaporn
    Radio Frequency Identification (RFID), The operated in 2.4 GHz RFID systems is energy and data transmission using propagating radio signal (E-field transmission). This is exactly the same principle as that used in long-range radio communication systems. The reader's antenna generates a propagating radio wave use far-field communication, which is received by the antenna in the tag. In this paper the microstrip antennas used both for reader antenna and tag antenna and simple patch antenna of this type radiates a linearly polarized wave. We investigated and analyzed to the vertical and horizontal polarization arranges in RFID communications link. Furthermore, the power delay profile and bit error rate shows. This technique, can studies sufficiently researches and designed the antennas independent. ©2009 IEEE.
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    Experimental study for polarimetric measurement of RFID transfer function with in an indoor environment
    (2009-12-01)
    Duangsuwan, S.
    ;
    Leukachorn, T.
    ;
    Chinsawatpan, S.
    ;
    Promwong, S.
    Radio Frequency Identification (RFID), is unlicensed industrial, scientific, and medical (ISM) band at 2.4 GHz. The same principle as that used in long-range radio communication links. The reader's antenna generates a propagating radio wave use far-field communication, which is received by the antenna in the tag. This paper, the microstrip patch antennas used both for transmitter antenna and receiver antenna likewise the reader antenna and tag antenna, simple patch antenna of this type radiates a linearly polarized wave. We investigated the transmission loss the RFID short range systems. Furthermore, we believed our studies can be designed the antennas for RFID systems. ©2009 IEEE.