Design of A Miniaturized Magnetoelectric Dipole Antenna

Abstract

In this letter, a magnetoelectric dipole antenna based on Minkowski fractal is designed. On the basis of the traditional magnetoelectric dipole antenna, by loading the Minkowski fractal structure to extend the current path, the center frequency of the antenna can be effectively reduced, and the miniaturized design of the antenna can be realized. The antenna adopts a second-order fractal structure. Simulated results show that the operating bandwidth of the antenna is up to 53% (1.65-2.84 GHz) for |S11| < -10dB. The pattern of E-and H-plane are basically the same, with low cross-polarization characteristics across the operating bandwidth. The antenna volume is reduced by 19.5% compared to before fractal.