A Low-Loss Compact Monopulse Antenna Based on Substrate-Integrated Suspended Line

IF 1.1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Microwave and Optical Technology Letters Pub Date : 2026-08-30 DOI:10.1002/mop.70772

Cheng Fu, Jianing Zhao, Hongyu Dai, Ruoyang Yang, Mingyu Yang, Hao Li, Fang Li, Biao Hu, Haiyang Wang, Keqiang Wang, Tianming Li, Yihong Zhou, Shiyong Ji

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引用次数: 0

Abstract

A low-loss compact substrate integrated suspended line (SISL) monopulse antenna is proposed in this paper. A monopulse comparator and a symmetric antenna array are implemented in a multilayer SISL air-cavity to minimize dielectric and radiation losses while providing strong field confinement and self-packaging. The overall antenna size is 6.4λ₀ × 3.4λ₀ × 0.17λ₀ (λ₀ is wavelength at 35 GHz). The proposed SISL monopulse antenna has been fabricated and tested. The measured gain at 35 GHz is 8.3 dBi, achieving a null depth better than 30 dB and the gain ratios between the sum and difference pattern below 3.6 dB. A return loss better than 10 dB is maintained over 34–36 GHz. These results indicate that the proposed SISL monopulse antenna is suited for compact monopulse tracking systems.

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基于基片集成悬浮线的低损耗紧凑单脉冲天线

提出了一种低损耗紧凑基板集成悬线（SISL）单脉冲天线。单脉冲比较器和对称天线阵列在多层SISL空腔中实现，以最大限度地减少介电和辐射损失，同时提供强场约束和自封装。天线总尺寸为6.4λ0 × 3.4λ0 × 0.17λ0 （λ0为35 GHz波长）。所提出的SISL单脉冲天线已经制作和测试。35 GHz时的测量增益为8.3 dBi，零深度优于30 dB，和差模式的增益比低于3.6 dB。在34-36 GHz范围内保持了小于10 dB的回波损耗。这些结果表明，所提出的SISL单脉冲天线适用于紧凑的单脉冲跟踪系统。

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来源期刊

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication