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Planar Near-Field RFID Reader Antenna for Item-Level Tagging
- Authors
- Cho, Chihyun; Lee, Chuyong; Ryoo, Jeongki; Choo, Hosung
- Issue Date
- 2011
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Item-level tagging (ILT); near field; radio frequency identification (RFID); reader antenna; ultrahigh frequency (UHF) band
- Citation
- IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, v.10, pp.1100 - 1103
- Journal Title
- IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
- Volume
- 10
- Start Page
- 1100
- End Page
- 1103
- ISSN
- 1536-1225
- Abstract
- In this letter, we propose a novel UHF planar near-field antenna for the application of RFID item-level tagging. The proposed antenna was designed to have a strong and uniform H-z-field over a broad antenna aperture to identify the various items with stable reading performance. To obtain a strong near H-z-field, two coupled patches are employed along with a microstrip-line feed, resulting in average H-z of -15 dBA/m on antenna aperture (30 x 30 x 10 cm(3)). We also measured the reading range, and it confirmed that the proposed antenna is suitable for a commercial RFID smart-shelf application.
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Related Researcher
- Choo, Ho sung
- Engineering (Electronic & Electrical Engineering)