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引用次数: 0
摘要
本文提出了一种紧凑的超低轮廓宽带高效折叠发射阵列天线（FTA）。它由三部分组成：顶部透射面（TS）、底部反射面（RS）和嵌入式紧凑平面进给。利用射线追踪原理并在RS中引入额外的相位补偿，可以显著减小天线轮廓，使其轮廓直径比（H/D）仅为0.13。尽管如此超低的外形，天线的整体性能仍然令人满意。为了验证设计概念，设计并制作了一个紧凑的超低轮廓FTA原型。测量结果表明，FTA的峰值孔径效率为36%，1 db /3 db增益带宽分别为10%/20%。这些吸引人的特点使所提出的设计非常适合各种高增益应用，其中需要一个低调和紧凑的配置。
A Compact Ultralow-Profile Wideband and High-Efficiency Folded Transmitarray
A compact ultralow-profile wideband and high-efficiency folded transmitarray antenna (FTA) is proposed in this letter. It consists of three parts: a top transmission surface (TS), a bottom reflection surface (RS), and an embedded compact planar feed. Using the principle of ray tracing and introducing additional phase compensation in the RS, the antenna profile can be significantly reduced, leading to a profile-to-diameter ratio (H/D) of only 0.13. Despite such an ultralow profile, the antenna overall performance still remains satisfactory. For design concept validation, a compact and ultralow-profile FTA is designed and prototyped. Measurement results demonstrate that the peak aperture efficiency of the FTA is 36%, with 1-dB/3-dB gain bandwidth of 10%/20%, respectively. These appealing characteristics make the proposed design very suitable for various high-gain applications where a low-profile and compact configuration is required.
期刊介绍：
International Journal of RF and Microwave Computer-Aided Engineering provides a common forum for the dissemination of research and development results in the areas of computer-aided design and engineering of RF, microwave, and millimeter-wave components, circuits, subsystems, and antennas. The journal is intended to be a single source of valuable information for all engineers and technicians, RF/microwave/mm-wave CAD tool vendors, researchers in industry, government and academia, professors and students, and systems engineers involved in RF/microwave/mm-wave technology.
Multidisciplinary in scope, the journal publishes peer-reviewed articles and short papers on topics that include, but are not limited to. . .
-Computer-Aided Modeling
-Computer-Aided Analysis
-Computer-Aided Optimization
-Software and Manufacturing Techniques
-Computer-Aided Measurements
-Measurements Interfaced with CAD Systems
In addition, the scope of the journal includes features such as software reviews, RF/microwave/mm-wave CAD related news, including brief reviews of CAD papers published elsewhere and a "Letters to the Editor" section.
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