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Seoul, South Korea

Kim T.,Haengdang Dong | Kim U.,Haengdang Dong | Choi J.,Haengdang Dong
Microwave and Optical Technology Letters | Year: 2011

In this article, a compact tag antenna for UHF RFID systems is proposed.The proposed antenna consists of a T-matching network, meandered dipole, and an inverted-U shaped parasitic element. The tag antenna is miniaturized by utilizing inductive coupling between the meandered dipole and the parasitic element. The overall dimension of the proposed tag antenna is 17.96 × 35.6 mm2. It has a gain of 1.52 dBi and a maximum reading distance of 6.3 m at 915 MHz. The size of the tag antenna is about 33% of that of other RFID tag antennas, such as a meander line antenna and a coplanar inverted-F antenna. In spite of its small size, the proposed tag antenna yields superior performance. © 2010 Wiley Periodicals, Inc.

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