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Aperture-coupled UHF RFID reader antenna for a handheld application
- Authors
- Lee, DongHyun; Park, Piijun; Kim, JeongPyo; Choi, JaeHoon
- Issue Date
- May-2008
- Publisher
- JOHN WILEY & SONS INC
- Keywords
- RFID reader antenna; aperture-coupled antenna; handheld application
- Citation
- MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, v.50, no.5, pp.1261 - 1263
- Indexed
- SCIE
SCOPUS
- Journal Title
- MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
- Volume
- 50
- Number
- 5
- Start Page
- 1261
- End Page
- 1263
- ISSN
- 0895-2477
- Abstract
- This article presents a new UHF RFID reader antenna for a handheld reader system. An aperture-coupled structure is employed to cover the North American UHF RFID frequency band: 902928 MHz. A thick high-dielectric substrate with a relative permittivity of epsilon(r) = 8 is used for the size reduction. The rectangular stubs on the proposed annular ring patch contribute to effective impedance matching and good axial ratio performance. The proposed antenna has a total volume of 100 mm X 100 mm X 9.6 mm and exhibits a maximum RHCP gain of 2.68 dBi and an average axial ratio of 1. 1 dB for the application frequency band.
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