Meander line tag antenna with inductively coupled parasitic element and T-loop feed

In this paper, a meander line dipole antenna for Ultra High Frequency Radio Frequency Identification (UHF RFID) tag applications is presented. The proposed antenna consists meandered dipole with end spiral conductor, an inductively coupled parasitic element for size miniaturization and T-loop for feed structure. The antenna is designed for North America UHF RFID frequency band (902-928 MHz) with Alien Higgs IC chip. The size of proposed tag antenna is 50mm × 12mm and exhibits good characteristics like reflection coefficient, impedance characteristics and radiation pattern with smaller size.