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DESIGN OF A WIDEBAND RECTANGULAR LOOP TAG ANTENNA FOR UHF RFID LIBRARY MANAGEMENT
- Authors
- Kim, Uisheon; Choi, Jaehoon
- Issue Date
- Jun-2010
- Publisher
- John Wiley & Sons Inc.
- Keywords
- antennas; RFID; tag; UHF; antennas
- Citation
- Microwave and Optical Technology Letters, v.52, no.6, pp 1439 - 1445
- Pages
- 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- Microwave and Optical Technology Letters
- Volume
- 52
- Number
- 6
- Start Page
- 1439
- End Page
- 1445
- ISSN
- 0895-2477
1098-2760
- Abstract
- In this letter, we propose a wideband rectangular loop tag antenna for ultra-high frequency radio frequency identification library management systems. The proposed antenna has a small matching loop for conjugate impedance matching with the impedance of a tag IC. The impedance bandwidth of the proposed antenna is broadened by lengthening the vertical sides of a rectangular loop. We considered the effects of books in designing the tag antenna. The optimized tag antenna, which is 35 HMI X 90 nun in size, has a wide impedance bandwidth of 170 MHz for SI, less than 10 dB. The maximum reading distance of a single tag is about 5 in, and the concurrent reading distance of 19 arranged tags is 1 in.
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