A planar inverted-F antenna (P...

A planar inverted-F antenna (PIFA) to be attached to metal containers for an active RFID tagA planar inverted-F antenna (PIFA) to be attached to metal containers for an active RFID tag
Wonkyu Choi Nak-Seon Seong, Jong Myoun Kim, Cheolsig Pyo, Jongsuk Chae Electronics and Telecommunications Research Institute (ETRI) 161 Gajeong-dong, Yuseong-gu, Daejon, 305-600, Korea Tel: +82-42-860-4999, Fax: +82-42-860-5199, E-mail: wkchoiketri.re.kr

Abstract The main purpose of this paper is to present a planar inverted-F antenna to be attached to metal containers. The designed PIFA introduce various shapes of slots and meander line for size reduction and loop-shaped stubs for impedance matching. The impedance bandwidth of the PIFA is about 1.4% for VSWR<2 and the maximum gain is about 2.5 dBi.

1.1ntroduction RFID (Radio Frequency Identificabon) has been successfully used in transportation a