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A broadband dual-polarized omnidirectional antenna based on magnetic dipoles is presented. The proposed antenna consists of a cone radiator for vertical polarization (VP) and eight magnetic dipole elements for horizontal polarization (HP). The dipole elements are arranged around the ground plane to greatly reduce the volume of the proposed antenna. The overall volume of the antenna is only π × 75.5mm × 75.5mm × 35mm (about π × 0.25 λ0 × 0.25 λ0 × 0.12 λ0 at 1GHz). The dipole elements are carefully designed to achieve the bandwidth about 28.7% from 2.03GHz to 2.71GHz. The bandwidth of the cone radiator is about 92% covering from 1GHz to 2.7GHz with band reject from 1.63GHz to 1.7GHz. The port isolation is more than 30 dB at the whole operation band. A good agreement between the simulated and measured results evidently validates this proposed antenna.

Broadband dual-polarized omnidirectional antenna based on magnetic dipoles