A Simple Wideband Magneto-Electric Dipole Antenna

By cutting a vertical slot on the quarter-wavelength patch antenna of the magneto-electric dipole antenna and changing the dimensions of the half-wavelength electric dipole antennas, a simple wideband magneto-electric dipole antenna with a defected ground structure is demonstrated. Experimentally, a prototype is fabricated and measured. The proposed antenna achieves a wide impedance bandwidth of 91.3% covering 1.38GHz to 3.7 GHz. Over this band, the measured antenna gain is ranged from 6 dBi to 7.8 dBi. This design has a low cross-polarization level and low backlobe radiation level.