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Platform-insensitive Antenna for RFID Sensor Tag in the UHF Band
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- Authors
- Won Kyu Choi, H. W. Son, Jun Ho Yeo, Jae-Young Jung, Ji-Hoon Bae, Gil Young Choi
- Issue Date
- 2007-06
- Citation
- IEEE Antennas and Propagation Society International Symposium (AP-S) 2007, pp.2277-2280
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper presents a PIFA-type RFID sensor tag antenna with a noticeable feature, the platform-insensitive one. That is, a resonant frequency of the RFID sensor tag isn't almost varied regardless of materials (plastics, woods and metals) for it to be stuck to and a gain variation is less than 1dB at center frequency, 910MHz. The designed antenna Is a planar inverted-F antenna (PIFA) with the aperture coupling feeding. The impedance bandwidth and maximum read range of the sensor tag are measured on a plastic, wood and metal, respectively. The 3dB return-loss bandwidth is about 15MHz and maximum read range is each about 8.4m, 8.9m and 4.6m on the wood, plastic and metal. ©2007 IEEE.
- KSP Keywords
- Aperture Coupling, Center frequency, Gain variation, Inverted-F antenna(IFA), Planar inverted F antenna, RFID sensor tag, Read range, Resonant frequency(Fr), Tag Antenna, UHF band, coupling feeding