Utilizing the special physical characteristic of a high impedance surface, a radio frequency identification tag antenna working at 920 MHz for metallic ground is proposed. The antenna not only overcomes the problem of impedance mismatching when placing on a metallic object, but also exhibits a low-profile antenna structure.
2. Lingfei, M. and H. Zhang, "RFID antenna near the surface of metal," IEEE International Symposium on Microwave, Antenna, Propagation, and EMC Technologies for Wireless Communications, 803-806, 2007.
3. Hirvonen, M., K. Jaakkola, P. Pursula, and J. Saily, "Dual-band platform tolerant antennas for radio-frequency identication," IEEE Transactions on Antennas and Propagation, Vol. 54, 2632-2637, 2006.
4. Ukkonen, L., L. Sydanheimo, and M. Kivikoski, "Effects of metallic plate size on the performance of microstrip patch-type tag antennas for passive RFID," IEEE Antennas and Wireless Propagation Letters, Vol. 4, 410-413, 2005.
5. Kim, D. and J. Yeo, "Low-profile RFID tag antenna using compact AMC substrate for metallic objects," IEEE Antennas and Wireless Propagation Letters, Vol. 7, 718-720, 2008.
6. Inafune, K. and E. Sano, "Multiband artificial magnetic conductors using stacked microstrip patch layers," Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, Vol. 1, 590-593, 2005.
7. Marrocco, G., "The art of UHF RFID antenna design: Impedance-matching and size-reduction techniques," IEEE Antennas and Propagation Magazine, Vol. 50, 66-79, 2008.
8. Luukkonen, O., F. Costa, C. R. Simovski, A. Monorchio, and S. A. Tretyakov, "A thin electromagnetic absorber for wide incidence angles and both polarizations," IEEE Transactions on Antennas and Propagation, Vol. 57, 3119-3124, 2009.