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Conference Paper
Radiation Efficiency Improvement Method of RFID Tag Antenna for Metallic Objects Printed on Lossy Substrate
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- Authors
- Hae-Won Son, Won-Kyu Choi, Gil-Young Choi
- Issue Date
- 2008-12
- Citation
- Asia-Pacific Microwave Conference (APMC) 2008, pp.1-4
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper proposes a novel design method of RFID tag antenna on metallic surfaces using a lossy substrate such as FR4. The proposed design reduces the substrate loss and improves the radiation efficiency more than double compared with a conventional PIFA (planar inverted-F antenna). The antenna can be directly matched to the typical high-Q impedance of a tag chip, which consists of small resistance and large capacitive reactance.
- KSP Keywords
- Capacitive reactance, Design method, High Q, Improvement method, Inverted-F antenna(IFA), Metallic surfaces, Planar inverted F antenna, RFID Tag Antenna, Radiation Efficiency, efficiency improvement, lossy substrate