ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
38.5
Session ID : BCT2014-22
Conference information
Improvement in Characteristics of Circular Polarized Antenna Composed of Unbalanced Fed Ultra Low Profile Inverted L Antenna for RFID Terminal
Mitsuo TAGUCHI, Hirotaka OBA
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Keywords: RFID, Inverted L antenna, Circular polarization, WIPL-D
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Abstract

The circular polarized antenna composed of an unbalanced fed ultra low profile inverted L antenna and L shaped slot is proposed for the reader antenna of the portable terminal of RFID. At UHF band from 915 MHz to 930 MHz, the condition make the circular polarization is the S_<11> less than -10dB and axial ratio less than -3dB. The analysis model met this condition. In the numerical analysis, the electromagnetic simulator "WIPL-D" based on method of moment is used.

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© 2014 The Institute of Image Information and Television Engineers
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