| 基于超表面的宽带超低剖面折叠透射阵 |
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| 引用本文： | 钟显江, 许河秀, 侯建强, 陈蕾, 肖秦琨. 基于超表面的宽带超低剖面折叠透射阵[J]. 电子与信息学报, 2022, 44(12): 4095-4103. doi: 10.11999/JEIT220007 |
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| 作者姓名： | 钟显江 许河秀 侯建强 陈蕾 肖秦琨 |
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| 作者单位： | 1.西安工业大学电子信息工程学院 西安 710021;;2.空军工程大学防空反导学院 西安 710051;;3.西安电子科技大学天线与微波技术重点实验室 西安 710071 |
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| 基金项目： | 国家自然科学基金(62171459, 62071366)，陕西省自然科学基金(2020JZ-33, 2020JQ-814)，陕西省高校科协青年人才托举计划项目(20200114)，陕西省教育厅自然科学基金(21JK0683) |
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| 摘 要： | 该文提出了基于超表面的宽带超低剖面折叠透射阵天线设计方法。该天线由两种超表面阵列和一个作为馈源的开口波导构成。其中，下层超表面能够将馈源发射的线极化入射波转换为交叉极化反射波，上层超表面能够实现特定线极化波的全反射和另一种线极化波的全透射。通过合理设计，该天线能够将辐射电磁波来回反射3次并在较宽频带内实现增益提升，同时其剖面高度能够降至传统透射阵的1/4。天线实测和仿真结果吻合良好，表明3 dB增益带宽达到19.6%(9.2～11.2 GHz)，且9.6 GHz处峰值增益达21 dBi，峰值口径效率为30%。该文设计方法为实现宽带低剖面阵列天线设计提供了新思路。
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| 关 键 词： | 天线 超表面 宽带 超低剖面 折叠透射阵 |
| 收稿时间： | 2022-01-05 |
| 修稿时间： | 2022-03-15 |
Wideband Ultralow-profile Folded Transmitarray Based on Metasurface |
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| ZHONG Xianjiang, XU Hexiu, HOU Jianqiang, CHEN Lei, XIAO Qinkun. Wideband Ultralow-profile Folded Transmitarray Based on Metasurface[J]. Journal of Electronics & Information Technology, 2022, 44(12): 4095-4103. doi: 10.11999/JEIT220007 |
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| Authors: | ZHONG Xianjiang XU Hexiu HOU Jianqiang CHEN Lei XIAO Qinkun |
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| Affiliation: | 1. School of Electronic Information Engineering, Xi’an Technological University, Xi’an 710021, China;;2. Institute of Air Defense and Anti-Missile, Air Force Engineering University, Xi’an 710051, China;;3. Science and Technology on Antenna and Microwave Laboratory, Xidian University, Xi’an 710071, China |
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| Abstract: | This paper proposes a novel design strategy for wideband ultralow-profile Folded TransmitArray (FTA) antenna using metasurfaces. It consists of two kinds of metasurfaces and an open waveguide antenna as the feed source. The bottom metasurface is applied to transforming the linearly polarized wave coming from feed antenna into its cross-polarized reflected ones. Meanwhile, the top metasurface is capable of reflecting one linearly polarized wave and transmitting the other orthogonal counterpart. With smart design, the proposed FTA can reflect the electromagnetic wave back three times between two metasurfaces and realize high gain performance within a wide frequency band, and its profile height is decreased to 1/4 that of conventional transmitarray. The simulated and measured results are basically consistent, which demonstrates a 3 dB gain bandwidth of 19.6% (9.2～11.2 GHz), a peak gain of 21 dBi and a peak aperture efficiency of 30% at 9.6 GHz. The proposed design offers a new avenue for wideband low profile array antenna. |
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| Keywords: | Antenna Metasurface Wideband Ultralow profile Folded TransmitArray (FTA) |
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