A novel millimetre-wave 2D wide-angle scanning phased array antenna based on decoupling surface

IF 1.1 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Iet Microwaves Antennas & Propagation Pub Date : 2024-10-20 DOI:10.1049/mia2.12521

Bao Xiong, Yongzhong Zhu, Yunxue Xu, Wenxuan Xie, Leng Han

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Abstract

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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基于去耦表面的新型毫米波二维广角扫描相控阵天线

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。

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来源期刊

Iet Microwaves Antennas & Propagation 工程技术-电信学

CiteScore

4.30

自引率

5.90%

发文量

109

审稿时长

7 months

期刊介绍： Topics include, but are not limited to: 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. Antenna topics including designed and prototyped antennas for operation at all frequencies; multiband antennas, antenna measurement techniques and systems, antenna analysis and design, aperture antenna arrays, adaptive antennas, printed and wire antennas, microstrip, reconfigurable, conformal and integrated antennas. Computational electromagnetics and synthesis of antenna structures including phased arrays and antenna design algorithms. Radiowave propagation at all frequencies and environments. Current Special Issue. Call for papers: Metrology for 5G Technologies - https://digital-library.theiet.org/files/IET_MAP_CFP_M5GT_SI2.pdf