一种在多层介质系统中改善聚焦的3D打印W波段介质透镜
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1电子科技大学 电子科学与工程学院, 成都 610054;2电子科技大学 长三角研究院(衢州), 衢州 32400;3电子科技大学 微波电真空器件国家级重点实验室, 成都 610054;4电子科技大学 太赫兹科学技术四川省重点实验室, 成都 610054

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E-mail: funnybingx@163.com, ybgong@uestc.edu.cn

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A 3D-Printed W-Band Dielectric Lens Enabling Improved Focusing in Multilayer Dielectric Systems
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1School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China;2Yangtze Delta Region Institute (Quzhou), University of Electronic Science and Technology of China, Quzhou, 32400, China;3National Key Laboratory on Vacuum Electronics, University of Electronic Science and Technology of China, Chengdu, 610054, China;4Terahertz Radiation and Application Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, 610054, China

Fund Project:

supported by the National Natural Science Foundation of China (62527804, 62427806, 92463308); the Municipal Government of Quzhou (2024D055); the Natural Science Basic Research Program of Shanxi (2025JC-YBMS-750).

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    摘要:

    这项工作提出了一种能够在多层介质中聚焦的3D打印介质透镜的设计方法。首先,基于光线聚焦原理,推导了相位补偿公式,实现了多层介质中任意深度的聚焦。然后,我们设计了一个W波段多层介质聚焦透镜来验证所提出的理论。全波模拟结果表明,与没有透镜的情况相比,焦点区域内的电磁能量提高了14.0 dB。实验测量结果显示能量增益为14.8 dB,与仿真结果非常吻合。

    Abstract:

    This work proposes a design methodology for 3D-printed dielectric lenses capable of focusing within multilayer dielectric media. First, based on ray-focusing principles, a phase compensation formula was derived to enable focusing at arbitrary depths within multilayer media. Then, we designed a W-band multilayer dielectric focusing lens to validate the proposed theory. Full-wave simulation results demonstrate a 14.0 dB enhancement in electromagnetic energy within the focal region compared to the case without a lens. Experimental measurements reveal a similar energy gain of 14.8 dB, showing strong agreement with the simulation outcomes.

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  • 收稿日期:2025-12-12
  • 最后修改日期:2026-01-05
  • 录用日期:2026-01-08
  • 在线发布日期: 2026-04-24
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