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http://dx.doi.org/10.9708/jksci.2010.15.7.067

UA Study on the Polarization Selective Antenna for UHF RFID System  

Lee, Sa-Won (Information Communication & Homenetwork, Cheongju College of Korea Polytechnic IV)
Song, Woo-Yong (College of Electron & Information Eng., Cheongju University)
Publication Information
Journal of the Korea Society of Computer and Information / v.15, no.7, 2010 , pp. 67-74 More about this Journal
Abstract
TIn this paper, it is designed the polarization selective antenna for UHF RFID system. The proposed antenna is consist of microstrip patch antenna with dual feeding and two SPDT switches and a SP4T switch and 3dB hybrid coupler. Through control of voltage of switches, the proposed reader antenna can select horizontally linear polarization, vertically linear polarization, left-hand circular polarization (LHCP) and right hand circular polarization (RHCP). The proposed reader antenna satisfied 2:1 VSWR at 902MHz~928MHz. and it has under 3dB AR(axial ratio). Peak gain of antenna is 7.71dBi, 7.55dBi with linear polarization and 7.31dBic, 7.81dBic with circular polarization at x-y plane. Also Axial ratio of antenna is 2.01~2.83dB and 2.02~2.60dB respectively. It is satisfied 3dB axial ratio.
Keywords
Reader Antenna; Linear Polarization; Circular Polarization; Control of Polarization; PLF;
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  • Reference
1 K. Finkenzeller, "RFID Handbook," Reading, MA: Addison Wiley, 2002.
2 R. Suwalak and C. Phongcharoenpanich, "Parametric Study of a Circularly Polarized Planar Antenna for Reader of UHF RFID System," Proceedings of Asia-Pacific Microwave Conference, pp. 1625-1628, December 2007.
3 C. S. Lee, V. Nalbandian, and F. Schwering, "planar, single-feed, circularly polarized microstrip antenna with enhanced bandwidth," IEEE Trans. Antennas Propagat., Vol. 3, pp. 1368-1371, 1998.
4 D. M. pozar, "Micostrip Antennas," Proc. IEEE, Vol. 80, No. 1, pp. 79-81, January 1992.   DOI   ScienceOn
5 V. Nikitin, K. V. S. Rao, "Performance Limitations of Passive UHF RFID system," Proceedings of the IEEE Antennas and Propagation, pp. 1011-1014, 2006.
6 M. S Trotter, J. D. Durgin, G. D. Sch. , "Power-optimized waveforms for improving the range and reliability of RFID systems," RFID, 2009 IEEE International Conference on, pp. 80-87, 2009.
7 W. Rankl and W. Effing, "Smart Card Handbook," New York:John Wiley & Sons, 2003.
8 C. S. Lee and V. Nalbandian, "Planar circularly polarized microstrip antenna with a single feed," IEEE Trans. Antennas Propagat., Vol. 47, pp. 1005-1007, 1999.   DOI   ScienceOn