Design of a U-shaped RFID tag antenna with an isotropic radiation characteristic
- Authors
- Lee, S.; Jung, H.; Choo, H.; Park, I.
- Issue Date
- 2011
- Citation
- Final Program and Book of Abstracts - iWAT 2011: 2011 IEEE International Workshop on Antenna Technology: Small Antennas, Novel Structures and Innovative Metamaterials, pp.306 - 309
- Journal Title
- Final Program and Book of Abstracts - iWAT 2011: 2011 IEEE International Workshop on Antenna Technology: Small Antennas, Novel Structures and Innovative Metamaterials
- Start Page
- 306
- End Page
- 309
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/20549
- DOI
- 10.1109/IWAT.2011.5752362
- ISSN
- 0000-0000
- Abstract
- In this paper, we propose a simple U-shaped radio-frequency identification (RFID) tag antenna with an isotropic radiation characteristic for stable operation of an RFID system. The antenna is composed of a U-shaped half-wavelength dipole and a rectangular-shaped feed. The feed is connected at the bottom of the dipole for conjugate impedance matching with a commercial tag chip. The gain deviation of the antenna can be further improved by inserting a rectangular slit in the lower central portion of the antenna body. For VSWR ≤ 2, both designs comply with the Korea ultra-high frequency RFID bandwidth. Within the operational frequency range, the gain deviation of the tag with a slit was less than 0.71 dB, while the gain deviation of the tag without a slit was less than 1.62 dB. © 2011 IEEE.
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Collections - College of Engineering > School of Electronic & Electrical Engineering > 1. Journal Articles
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