2011•Microwave and Optical Technology LettersRequires access

An effective impedance matching method for RFID slot tag antennas

Horng‐Dean Chen, Fu‐Chen Chu

Abstract

Abstract This article presents an impedance matching method suitable for various radio frequency identification (RFID) slot tag antennas.By loading a matching slot onto a radiating slot, the impedance of the proposed slot tag antenna can be easily tuned to match the various impedance values of chips by simply changing the length of the matching slot. Two examples of the slot tag antennas are studied. Results show that the designed tags exhibit offer good reading range performances and are excellent candidates for RFID applications. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26130

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Key concepts: Impedance matching, Slot antenna, Matching (statistics), Electrical impedance, Antenna (radio), Radio-frequency identification, Microwave, Electronic engineering