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Design of A Wideband Dual-polarization Electromagnetic Dipole Antenna

A wideband dual-polarized electromagnetic dipole antenna is proposed in this paper. The antenna consists of a square reflector, an annular side wall, a metal ring, and a cross electromagnetic dipole fed by two orthogonal gradient Γ-shaped feed strips. Simulation results show that the bandwidth of the antenna with VSWR≤2 is 93.5%(740~2440MHz). In addition, the orthogonal placement of electromagnetic dipoles realizes dual polarization, and the port isolation is better than 16.4dB. In the whole working frequency band, the peak gain is higher than 6dBi. The antenna can be widely used in 3G, 4G and WLAN.