Fast Analysis and Bandwidth Enhancement of the Radiating Subarray by Method of Moments for a Parallel-Plate Slot Array Antenna with Perpendicular-Corporate Feed
Fast Analysis and Bandwidth Enhancement of the Radiating Subarray by Method of Moments for a Parallel-Plate Slot Array Antenna with Perpendicular-Corporate Feed
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垂直整体馈电平行板缝隙阵列天线辐射子阵的矩量法快速分析和带宽增强
DOI：
10.1109/tap.2021.3119059
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
and Jiro Hirokawa
中科院分区：
文献类型：
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作者：
Shuang Ji;Takashi Tomura;and Jiro Hirokawa
采用矩量法对平行平板缝隙阵列天线中的辐射子阵进行了快速分析和宽带设计。将MOM和遗传算法(GA)应用到子阵设计中，可以实现快速的电磁分析和轻松的宽带性能优化。与HFSS仿真结果的比较表明，该方法具有较高的设计效率。采用基于−仿真的常规设计方法，子阵的反射带宽(BW)由三层结构的7.7%和四层结构的11.4%提高到了13.1%。制作的1616缝隙阵列的测量带宽为13.2%(58.7-67.0 GHz)，反射率低于−10分贝，在带宽为11.2%(59.7-66.8 GHz)的情况下，天线效率大于70%。在61.5 GHz的设计频率下，获得了32.9dBI的高增益和81.8%的天线效率。
Fast analysis and wideband design using method of moments (MoM) are proposed for a radiating subarray in a parallel-plate slot array antenna with perpendicular-corporate feed in this article. Applying the MoM and a genetic algorithm (GA) to the subarray design enables fast electromagnetic analysis and easy optimization for wideband performance. A comparison with the HFSS simulation proves the superior efficiency of designing by the proposed approach. The simulated bandwidth (BW) of reflection below −14 dB for the subarray gets up to 13.1% by a two-layer geometry in this article, much improved from the 7.7% by a three-layer structure or the 11.4% by a four-layer structure using the conventional design method based on the HFSS simulation. The fabricated 1616-slot array shows a measured BW of 13.2% (58.7–67.0 GHz) with a reflection below −10 dB and a high antenna efficiency greater than 70% over a BW of 11.2% (59.7–66.8 GHz). At the design frequency of 61.5 GHz, a high measured gain of 32.9 dBi with antenna efficiency of 81.8% is demonstrated.