Design of Full Phase Gradient Coverage Energy Selective Electromagnetic Protection Structure

GAI Long-jie; XU Yan-lin; ZHOU Tao; WU Zhao-feng; LIU Pei-guo

doi:10.12263/DZXB.20240607

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Design of Full Phase Gradient Coverage Energy Selective Electromagnetic Protection Structure

Electromagnetic Spectrum and Unmanned Technology | 更新时间：2025-08-18

- Design of Full Phase Gradient Coverage Energy Selective Electromagnetic Protection Structure
- ACTA ELECTRONICA SINICA Vol. 53, Issue 5, Pages: 1405-1415(2025)
- 作者机构：
  
  国防科技大学电子科学学院，湖南长沙 410073
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(62293491;62293494)
- DOI：10.12263/DZXB.20240607
  CLC： TN97;
- Received：27 June 2024，
  
  Revised：2025-03-03，
  
  Published：25 May 2025
- 稿件说明：
移动端阅览
盖龙杰, 徐延林, 周涛, 等. 全相位梯度覆盖能量选择防护结构设计[J]. 电子学报, 2025, 53(05): 1405-1415.

GAI Long-jie, XU Yan-lin, ZHOU Tao, et al. Design of Full Phase Gradient Coverage Energy Selective Electromagnetic Protection Structure[J]. Acta Electronica Sinica, 2025, 53(05): 1405-1415.
盖龙杰, 徐延林, 周涛, 等. 全相位梯度覆盖能量选择防护结构设计[J]. 电子学报, 2025, 53(05): 1405-1415. DOI：10.12263/DZXB.20240607

GAI Long-jie, XU Yan-lin, ZHOU Tao, et al. Design of Full Phase Gradient Coverage Energy Selective Electromagnetic Protection Structure[J]. Acta Electronica Sinica, 2025, 53(05): 1405-1415. DOI：10.12263/DZXB.20240607

摘要

透射阵天线是一种将透镜阵列和天线相结合的天线，远场透镜结构多由离散排布的相位调控单元构成.透射阵天线具备高增益特性，因此有必要对透射阵天线电子信息系统进行电磁防护加固.为有效应对高功率微波及强电磁脉冲对电子信息系统的威胁，设计了一种全相位梯度覆盖的能量选择结构，为相位调控单元提供电磁防护能力.基于解耦设计思想，将能量选择层和相位调控层进行级联，并开展一体化优化设计，同步具备能量选择和梯度相位调控功能.仿真结果表明，该能量选择相位调控结构在不同调控相位下插入损耗整体小于2 dB，防护效能最高可达35 dB.金属贴边边长从2.0 mm增加至8.2 mm时，仿真透波相位覆盖范围可达-63°至-486°，超过360°.在波导中对该结构测试件进行了性能验证，实测结果表明，平均插入损耗为2.07 dB，防护效能最高可达15 dB，相位覆盖范围达-76°至-317°.仿真和实测结果验证该设计方法初步实现能量选择和相位调控的功能，可应用于防护型透射阵天线及具备梯度相位变换要求的能量选择表面设计，能有效指导其他频段能量选择相位调控结构的设计.

Abstract

The transmitarray antenna is a kind of antenna combining lens array and antenna

and the far-field lens structure is mostly composed of discrete rows of phase modulation units. The transmitarray antenna has high gain characteristics

so it is necessary to reinforce the electromagnetic protection for the electronic information system of the transmitarray antenna. To effectively deal with the threat of high power microwave and strong electromagnetic pulse to the electronic information system

a full-phase gradient coverage energy selective structure is designed to provide electromagnetic protection for the phase modulation unit. Based on the decoupling design idea

the paper cascades the energy selective layer and the phase modulation layer

and carries out the integrated optimization design

with simultaneous energy selection and gradient phase modulation functions. Simulation results show that the insertion loss of the energy selective phase modulation structure is less than 2 dB at different phase modulation levels

and the shielding effectiveness is up to 35 dB. The simulated transmissive phase coverage ranges from -63° to -486°

and is more than 360° when the length of the metal edge is increased from 2.0 mm to 8.2 mm. The performance of the structural test piece is verified in a waveguide

and the measured results show an average insertion loss of 2.07 dB

a shielding effectiveness of up to 15 dB

and a phase coverage of -76° to -317°. Simulation and measurement results verify that the design method initially realizes the functions of energy selective and phase modulation

which can be applied to the design of electromagnetic protective transmitarray antenna and energy selective surface with gradient phase conversion requirements

and effectively guide the design of energy selective phase modulation structures in other frequency bands.

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Keywords

references

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