A Dual band Monopole Antenna For RFID Applications

Abstract

A miniaturized microstrip fed folded dipole antenna for RFID applications has been proposed. Two RFID resonance frequencies of 2.4 and 5.8 GHz are accommodated by the antenna. The simulated reflection coefficients are −13.4 dB at 2.4 GHz (2.28 to 2.49 GHz) and −38.5 dB at 5.8 GHz (5.4 to 6.6 GHz). The antenna design is simple, and it provides better impedance matching, and constant omnidirectional radiation pattern. The proposed antennas dimensions are optimized to get the best results at the desired band.