文章摘要
富新民, 韩亚娟, 王甲富, 赵然, 贾宇翔, 庞永强, 屈绍波, 徐卓.一种带有透波窗口的宽带RCS缩减超表面设计[J].空军工程大学学报:自然科学版,2022,23(1):24-29
一种带有透波窗口的宽带RCS缩减超表面设计
A Novel Design of a Wideband RCS Meta Surface Reduced with Transmission Window
  
DOI:
中文关键词: 超表面  极化旋转  频率选择表面  天线罩  RCS缩减  透波窗口
英文关键词: meta surface  polarization conversion  frequency selection surface  radome  RCS reduction  transmission window
基金项目:国家自然科学基金(61971435);空军工程大学基础部科研基金(JK2021206)
作者单位
富新民, 韩亚娟, 王甲富, 赵然, 贾宇翔, 庞永强, 屈绍波, 徐卓 1. 空军工程大学基础部 西安710051 2.93128部队 北京 100843 3.西安交通大学电信工程学院 西安 710049 
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中文摘要:
      超表面在调控电磁波的极化、幅值和相位等方面具有极大的优势。针对天线带外低散射的现实需求,通过复合极化旋转超表面和频率选择表面,调节极化旋转单元的响应厚度,实现了兼具高效极化旋转反射和同极化透波窗口的超表面设计。利用几何相位仅对交叉极化波有响应的特性,进一步通过棋盘阵列排布,在透波窗口的两侧实现低散射特性,其中透波带10.0~11.0 GHz插损低于1 dB;在4.5~7.5 GHz和12.0~17.0 GHz频带内实现低散射特性,RCS缩减接近10 dB。仿真和实验结果表明:文中所提出的超表面设计方法和架构具有宽带的RCS缩减特性和低插损透波特性,在隐身天线罩中具有潜在的应用价值。
英文摘要:
      In view of the practical needs of low out of band scattering of antenna, through adjusting the response thickness of polarized conversion meta surface by combining the frequency selective surface, a meta surface is designed to utilize both efficient cross polarized reflection and co polarized wave transmission window. Furthermore, this paper utilizes the geometric phase in response only to cross polarized waves, through the checkerboard array configuration, for realizing the low scattering characteristics on both sides of the translucent window, in which the penetration loss of 10.0~11.0 GHz insertion loss is less than 1 dB and up to 0.8 dB. Besides, and the Low scattering characteristics are achieved in the 4.5~7.5 GHz and 12.0~17.0 GHz bands with RCS reduction of nearly 10 dB. The simulation and experimental results show that the proposed meta surface design method and architecture are characterized by the broadband RCS reduction and low penetration loss, and have potential application value in stealth radome.
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