摘要
提出一种利用嵌入式均匀柱面透镜设计交叉电桥的新方法。与传统交叉电桥设计相比, 该方法在空气填充的基片集成波导交叉腔内引入一个均匀柱面透镜, 将入射波导向指定方向。根据射线追踪法, 引入的均匀柱面透镜可以在不提高加工复杂度和面积的前提下, 有效束缚从输入端传输到输出端的电磁波。详细阐述了该方法的工作机理, 并通过电场分布进一步予以验证。利用空气填充基片集成波导技术, 研制了工作在毫米波频段的二、三、四通道交叉电桥, 验证了所提方法的可行性。同时引入过渡结构, 便于实验测量。研究发现二、三、四通道空气填充基片集成波导交叉电桥仿真带宽分别为33%、14%和10%, 其核心尺寸分别为0.74λ×0.74λ、1.43λ×1.43λ和1.90λ×1.90λ。最后, 为进一步阐述本文方法的优势, 将其与公开文献中的类似方法进行了比较。
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Data availability
The data that support the findings of this study are available from the corresponding author upon reasonable request.
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Chun GENG and Jiwei LIAN designed the research. Chun GENG processed the data. Chun GENG and Jiwei LIAN drafted the paper. Dazhi DING revised and finalized the paper.
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Chun GENG, Jiwei LIAN, and Dazhi DING declare that they have no conflict of interest.
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Project supported by the National Natural Science Foundation of China (Nos. 62101259, 62025109, and 61931021), the National Key Laboratory on Electromagnetic Environment Effects, China (No. JCKYS2019 DC4), the Primary Research and Development Plan of Jiangsu Province, China (No. BE2022070), the Open Research Program of the State Key Laboratory of Millimeter Waves, China (No. K202229), and the Undergraduate Research Training Program of Nanjing University of Science and Technology, China (No. 202210288057)
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1 Supplement to the operation principle
2 Supplement to the design process
3 Supplement to the experiment
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Geng, C., Lian, J. & Ding, D. Compact millimeter-wave air-filled substrate-integrated waveguide crossover employing homogeneous cylindrical lens. Front Inform Technol Electron Eng 24, 1366–1374 (2023). https://doi.org/10.1631/FITEE.2200454
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DOI: https://doi.org/10.1631/FITEE.2200454