A Miniaturized Printed Bow-Tie Antenna for Passive RFID Applications

This paper presents a miniaturized printed Bow-tie antenna with meandered shape for passive tag Radio Frequency Identifications (RFID) applications. The proposed antenna has size reduction about 85% compared to a conventional bow-tie antenna. The antenna has a bandwidth (900-930MHz) covering North America band. This meandered bow-tie antenna has a shape as a dipole antenna. In addition, an RFID chip is used with this antenna and represented by its equivalent lumped element. Using HFSS software, the proposed antenna is designed and optimized, and good performances are achieved in terms of impedance matching and compactness.