Performance Enhancement of Hybrid Modes-Based Wide-Angle Scanning Phased Array with Broadened Bandwidth and Reduced Coupling

IF 4.5 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Chinese Journal of Electronics Pub Date : 2026-07-01 Epub Date: 2026-09-09 DOI:10.23919/cje.2025.00.360

Jinshuai Hu;Youfeng Cheng;Yemin Zang;Cheng Liao

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引用次数: 0

Abstract

This paper presents a simple but efficient solution to broaden the impedance bandwidth, suppress the mutual coupling (MC), and extend the scanning range of a single-layer microstrip patch phased array. By simultaneously exciting and adjusting the electric fields (E-fields) of the transverse magnetic (TM)10 and TM20 modes, dual resonances are supported to enhance the impedance bandwidth, and weak fields are generated on coupled patches to achieve the MC reduction. Furthermore, the radiation fields of the TM10 and TM20 modes are combined inherently within the impedance band to achieve the wide-beam pattern. The proposed solution can also be applied to a linear phased array in which the above three functions are integrated for wideband wide-angle scan. A fabricated prototype of the phased array is measured for performance validation. Measured results confirm that the designed array can achieve its scanning range of ±60° with good impedance matching and high inter-port isolation across the −10 dB active reflection band from 5.56 to 5.98 GHz (7.3%).

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宽带宽、低耦合的混合模式广角扫描相控阵性能增强研究

针对单层微带贴片相控阵的特点，提出了一种简单而有效的方法来拓宽其阻抗带宽，抑制互耦，扩大扫描范围。通过同时激励和调节横磁（TM）10和横磁（TM20）模式的电场（e场），支持双共振以增强阻抗带宽，并在耦合贴片上产生弱场以实现MC降低。此外，TM10和TM20模式的辐射场在阻抗带内固有结合，实现了宽波束方向图。所提出的解决方案也可以应用于将上述三种功能集成在一起的线性相控阵中，用于宽带广角扫描。制作了相控阵样机，进行了性能验证。测量结果表明，该阵列在5.56 ~ 5.98 GHz (7.3%) - 10 dB主动反射频段内具有良好的阻抗匹配和高端口间隔离度，扫描范围为±60°。

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来源期刊

Chinese Journal of Electronics 工程技术-工程：电子与电气

CiteScore

3.70

自引率

16.70%

发文量

342

审稿时长

12.0 months

期刊介绍： CJE focuses on the emerging fields of electronics, publishing innovative and transformative research papers. Most of the papers published in CJE are from universities and research institutes, presenting their innovative research results. Both theoretical and practical contributions are encouraged, and original research papers reporting novel solutions to the hot topics in electronics are strongly recommended.