Directivity Analysis for Dual-Band Monopole Antenna for RFID Applications

Abstract

Design of radio-frequency identification tag with proper signal receiving and transmitting capability is now a challenging task. For that many kinds of antennas are proposed. This paper provides one such kind of design, incorporating the design of monopole antenna and micro-strip antenna. The operating frequency ranges are designed for 2.2–2.6 GHz and 5.3–6.8 GHz, which is suitable for RFID operation bands. Monopole antenna is fabricated in ‘F’ shape. FR-4 dielectric material has been used with 38 x 45 x 1.6 mm³ size. Return loss, VSWR, directivity and gain parameters are analysed using ANSYS HFSS software. The structure of ‘F’ pattern makes the antenna suitable for RFID applications.