Self-Decoupled Dual-Band Shared-Aperture Base Station Antenna Array

被引：37
作者：
Li, Yixin [1 ]
Chu, Qing-Xin [1 ]
机构：
[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510641, Peoples R China
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2022年 / 70卷 / 07期
关键词：
Antenna arrays; Reflector antennas; Antenna radiation patterns; Reflection; Dipole antennas; Antennas; Couplings; Base station antenna; decoupling; partially reflective surface (PRS); shared-aperture antenna; SCATTERING; SUPPRESSION; CONFIGURATION; ELEMENT;
D O I：
10.1109/TAP.2022.3161461
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new decoupling concept for dual-band shared-aperture base station antenna arrays is proposed. By loading arrow-shaped decoupling structures in the hollowed regions of the low-band (LB) loop dipole arms, the LB antenna can yield partial reflection to the high-band (HB) antennas, canceling the HB-coupled wave. A dual-band base station antenna array is designed, fabricated, and measured based on this decoupling concept. With decoupling, the HB radiation patterns are restored. The copolarized in-band couplings between the HB antennas are reduced by about 9 dB, reaching >26.9 dB. The proposed antenna array possesses both cross-band and in-band decoupling abilities, without extra decoupling layer.
引用
收藏
页码：6024 / 6029
页数：6
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