A 38° Wide Beam-Steerable Compact and Highly Efficient V-band Leaky Wave Antenna with Surface Integrated Waveguide for Vehicle-to-Vehicle Communication
A 38° Wide Beam-Steerable Compact and Highly Efficient V-band Leaky Wave Antenna with Surface Integrated Waveguide for Vehicle-to-Vehicle Communication
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DOI：
10.1109/wmcs58822.2023.10194262
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发表时间：
2023-04
期刊：
影响因子：
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通讯作者：
P. Sah;I. Mahbub
中科院分区：
文献类型：
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作者：
P. Sah;I. Mahbub
提出了一种用于毫米波无人机通信系统的高效单层基板集成波导漏波天线（LWA）。单元格的泄漏波辐射部分包括两个y形槽的组合，在顶部SIW上蚀刻46°拉伸V，从而形成w形结构。该阵列在56.3 GHz至63.4 GHz的频率范围内实现了13.47 dBi的高增益，覆盖了未授权频段，具有-21 dB以下的良好匹配水平。利用漏波天线的频率扫描能力，天线的扫描范围为38°。由于其低姿态和紧凑性，所设计的天线显示出UAV-to-UAV应用的有前途的解决方案，并且非常适合使用Rogers RT 5880作为基板的单层低成本印刷电路板制造工艺。在达到的带宽下，平均半功率角波束宽度为12.1°，使得在$\mathbf{0.456}\lambda$处均匀排列的元件的辐射效率超过62%。该天线采用了6.48\times 4\ \lambda$（相当于3.24\times 0.2\ text{cm}$）的整体低尺寸紧凑型尺寸，并改进了性能，在60 GHz时实现了椭圆极化，轴向比为3.5 dBi。
This paper presents a highly efficient single-layer substrate-integrated waveguide (SIW) based leaky-wave antenna (LWA) for the millimeter-wave unmanned aerial vehicle (UAV) communication system. The leaky wave-based radiating part of the unit cell includes a combination of two Y-shaped slots with 46° stretched V etched on the top SIW, resulting in a W-shaped structure. The proposed array achieves a high gain of 13.47 dBi for the frequency range of 56.3 GHz to 63.4 GHz covering the unlicensed band, with a fine matching level below -21 dB. Using the leaky wave antenna's frequency scanning capability, the proposed antenna exhibits a scanning range of 38°. The designed antenna shows a promising solution for the UAV-to-UAV applications due to its low profile and compactness and is well-suited for the single-layer low-cost printed circuit board fabrication process using Rogers RT 5880 as substrate. The radiation pattern for the achieved bandwidth shows an average half-power angular beamwidth of 12.1°, resulting in a radiation efficiency of more than 62% for the elements arranged uniformly at a distance of $\mathbf{0.456}\lambda$. Following an overall low-profile compact size of $6.48\times 4\ \lambda$ corresponding to $3.24\times 0.2\ \text{cm}$ and improved performance, the antenna achieves an elliptical polarization at 60 GHz for an axial ratio equal to 3.5 dBi.