ETRI Journal
- 제28권2호
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- Pages.216-218
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- 2006
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- 1225-6463(pISSN)
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- 2233-7326(eISSN)
An RFID Tag Using a Planar Inverted-F Antenna Capable of Being Stuck to Metallic Objects
- Choi, Won-Kyu (Telematics & USN Research Division, ETRI) ;
- Son, Hae-Won (Telematics & USN Research Division, ETRI) ;
- Bae, Ji-Hoon (Telematics & USN Research Division, ETRI) ;
- Choi, Gil-Young (Telematics & USN Research Division, ETRI) ;
- Pyo, Cheol-Sig (Telematics & USN Research Division, ETRI) ;
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Chae, Jong-Suk
(Telematics & USN Research Division, ETRI)
- 투고 : 2005.09.02
- 발행 : 2006.04.30
초록
This letter presents the design for a low-profile planar inverted-F antenna (PIFA) that can be stuck to metallic objects to create a passive radio frequency identification (RFID) tag in the UHF band. The designed PIFA, which uses a dielectric substrate for the antenna, consists of a U-slot patch for size reduction, several shorting pins, and a coplanar waveguide feeding structure to easily integrate with an RFID chip. The impedance bandwidth and maximum gain of the tag antenna are about 0.3% at 914 MHz for a voltage standing wave ratio (VSWR) of less than 2 and 3.6 dBi, respectively. The maximum read range is about 4.5 m as long as the tag antenna is on a metallic object.