Suppression of Cross-Band Scattering in Interleaved Dual-Band Cellular Base-Station Antenna Arrays

被引：35
|
作者：
Sun, Hai-Han [1 ,2 ]
Jones, Bevan [1 ]
Guo, Y. Jay [1 ]
Lee, Yee Hui [2 ]
机构：
[1] Univ Technol Sydney, Fac Engn & Informat Technol, Global Big Data Technol Ctr, Sydney, NSW 2007, Australia
[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
来源：
IEEE ACCESS | 2020年 / 8卷
关键词：
Antenna arrays; Resonant frequency; Capacitance; Scattering; Baluns; Antenna radiation patterns; Integrated circuit modeling; Bandwidth enhancement; base station antennas; common-mode resonance; cross-band scattering suppression; dual-band array; BROAD-BAND;
D O I：
10.1109/ACCESS.2020.3043578
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this article, novel techniques to suppress cross-band scattering in interleaved dual-band base station antenna arrays are presented. Firstly, the detrimental effect of high-band (HB) elements on low-band (LB) radiation performance is theoretically analyzed. With a thorough analysis, a capacitance-loaded HB element is innovated to solve the issue and restore the LB patterns. Secondly, to eliminate the reverse HB scattering caused by the LB element while enhancing the bandwidth of the LB element, a novel double-arm choked cross-dipole configuration is proposed. A compact array section is built with these innovated elements. The experimental results of the array show a largely suppressed cross-band scattering with stable radiation performance across the well-matched bands, demonstrating the effectiveness of the presented techniques.
引用
收藏
页码：222486 / 222495
页数：10
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