Bao Xiong, Yongzhong Zhu, Yunxue Xu, Wenxuan Xie, Leng Han
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引用次数: 0
摘要
本文提出了一种基于去耦表面（DS）的新型毫米波（mmWave）二维广角扫描（WAS）相控阵天线（PAA）。所提出的元件是一种同轴馈电叠层贴片天线结构，由 L 型同轴探针、基底集成波导腔、槽层、辐射贴片、DS 和缺陷接地结构组成。该元件的模拟阻抗带宽为 14.85%（26.18-30.34 GHz）。2 × 2 阵列的模拟结果表明，基于 DS 设计的天线在带宽内实现了≥19 dB 的隔离度。为验证所提天线的扫描能力，制作并测量了 8 × 8 PAA 原型。原型的测量扫描范围在 27 GHz 时达到了 ±56° 的二维 WAS 范围。由于设计紧凑并能实现二维 WAS，拟议的天线在汽车雷达和卫星通信等应用场景中显示出巨大的潜力。
A novel millimetre-wave 2D wide-angle scanning phased array antenna based on decoupling surface
This paper presents a novel millimetre-wave (mmWave) 2D wide-angle scanning (WAS) phased array antenna (PAA) based on decoupling surface (DS). The proposed element is a coaxial feeding stacked patch antenna structure that consists of an L-shape coaxial probe, substrate integrated waveguide cavity, slot layer, radiating patch, DS and defective ground structure. The simulated impedance bandwidth for the element is 14.85% (26.18–30.34 GHz). The simulated result of the 2 × 2 array shows that the designed antenna based on DS achieves an isolation of ≥19 dB within the bandwidth. To validate the scanning capabilities of the proposed antenna, an 8 × 8 PAA prototype is fabricated and measured. The measured scanning range of the prototype achieves a 2D WAS range of ±56° at 27 GHz. The proposed antenna shows great potential in application scenarios, such as automotive radar and satellite communication due to its compact design and ability to achieve WAS in two dimensions.
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Microwave circuits including RF, microwave and millimetre-wave amplifiers, oscillators, switches, mixers and other components implemented in monolithic, hybrid, multi-chip module and other technologies. Papers on passive components may describe transmission-line and waveguide components, including filters, multiplexers, resonators, ferrite and garnet devices. For applications, papers can describe microwave sub-systems for use in communications, radar, aerospace, instrumentation, industrial and medical applications. Microwave linear and non-linear measurement techniques.
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