Broadband dual-polarized omnidirectional antenna based on magnetic dipoles

IEICE Electronics Express

Zhaodong Gao¹  Ming Su¹  Yuanan Liu¹  Xia Bai¹ 

[1] Beijing Key Laboratory of Work Safety Intelligent Monitoring, School of Electronic Engineering, Beijing University of Posts and Telecommunications

关键词: broadband;    dual polarization;    compact volume;    port isolation;    omnidirectional pattern;    magnetic dipoles;   

DOI  :  10.1587/elex.15.20171149

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

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 × 75.5 mm × 75.5 mm × 35 mm (about π × 0.25 λ0 × 0.25 λ0 × 0.12 λ0 at 1 GHz). The dipole elements are carefully designed to achieve the bandwidth about 28.7% from 2.03 GHz to 2.71 GHz. The bandwidth of the cone radiator is about 92% covering from 1 GHz to 2.7 GHz with band reject from 1.63 GHz to 1.7 GHz. 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.

【 授权许可】

CC BY