Flexible Design of Dual-Band Radar-Absorbing Composites by Controllable Permittivity

  • Tae-Hoon Song
  • Won-Ho Choi
  • Jae-Hwan Shin
  • Won-Jun Lee
  • Chun-Gon KimEmail author
Original Paper


A new flexible design concept of dual-band RASs is presented and discussed. The new design concept can provide a simple and useful fabrication method. A case study demonstrated the ability of the proposed approach to overcome the limits encountered in previous studies related to the finite design of RASs. To obtain various optimal RAS design solutions using lossy materials, Glass/CNT-EP composites whose permittivity was controlled simply by varying the manufacturing pressure were demonstrated. The feasibility of RASs based on these composite materials with adjustable permittivity was studied at both single- and dual-band frequencies. The structures demonstrated enhanced performance compared to conventional materials. Various design solutions using both single- and double-slab absorbers were obtained on the basis of their properties. Thus, the proposed design method based on the controllable characteristics of CNT-added composite materials is used to enhance the absorption performance of RASs through a flexible design at both single- and dual-band frequencies.


Radar-absorbing composites Permittivity Flexible design Dual-band 



This work was supported by Agency for Defense Development as a part of basic research program under the contract UD130045JD.


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Copyright information

© The Korean Society for Aeronautical & Space Sciences 2019

Authors and Affiliations

  • Tae-Hoon Song
    • 1
  • Won-Ho Choi
    • 1
  • Jae-Hwan Shin
    • 1
  • Won-Jun Lee
    • 2
  • Chun-Gon Kim
    • 1
    Email author
  1. 1.Department of Aerospace EngineeringKorea Advanced Institute of Science and TechnologyDaejeonRepublic of Korea
  2. 2.Agency for Defense DevelopmentThe 7th R&D Institute-3DaejeonRepublic of Korea

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