volume | PIER Journals

Abstract

This paper proposes a broadband dual-polarized (DP) magneto-electric dipole antenna (MEDA) loaded with parasitic elements. The antenna structure comprises a rectangular reflecting cavity, four corner-truncated and optimized horizontal electric dipoles, eight vertically arranged magnetic dipoles, and four triangular parasitic elements embedded in the truncated corners of the electric dipoles. An orthogonal Γ-shaped feeding network is employed to excite dual-polarized modes, ensuring stable bandwidth and gain performance. Experimental measurements demonstrate an overlapping impedance bandwidth (|S₁₁| and |S₂₂| ≤ -10 dB) of 84.7% (1.92-4.74 GHz) for both ports, with an in-band peak gain of 11.69 dBi and port isolation exceeding 27 dB. This design provides a compact high-isolation dual-polarized antenna solution for 5G multi-band communication systems.

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Dr. Xinyi Li

Dr. Wu-Sheng Ji

Dr. Haibo Li

Dr. Jingbo Shi