Advertisement

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
  • 4 Downloads

Abstract

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.

Keywords

Radar-absorbing composites Permittivity Flexible design Dual-band 

Notes

Acknowledgements

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

References

  1. 1.
    Rinzler AG, Hafner JH, Nikolaev P, Nordlander P, Colbert DT, Smalley RE, Lou L, Kim SG, Tomanek D (1995) Unraveling nanotubes: field emission from an atomic wire. Science 269(5230):1550–1553CrossRefGoogle Scholar
  2. 2.
    Vinoy KJ (1996) Radar absorbing materials: from theory to design and characterization. Kluwer Academic Publishers, BostonCrossRefGoogle Scholar
  3. 3.
    Gibson RF (1994) Principles of composite material mechanics. McGraw-Hill, New YorkGoogle Scholar
  4. 4.
    Lee S-E, Kang J-H, Kim C-G (2006) Fabrication and design of multi-layered radar absorbing structures of MWNT-filled glass/epoxy plain-weave composites. Compos Struct 76(4):397–405CrossRefGoogle Scholar
  5. 5.
    Pötschke P, Fornes TD, Paul DR (2002) Rheological behavior of multiwalled carbon nanotube/polycarbonate composites. Polymer 43(11):3247–3255CrossRefGoogle Scholar
  6. 6.
    Shaffer MSP, Windle AH (1999) Analogies between polymer solutions and carbon nanotube dispersions. Macromolecules 32(20):6864–6866CrossRefGoogle Scholar
  7. 7.
    Sung YT, Han MS, Song KH, Jung JW, Lee HS, Kum CK, Joo J, Kim WN (2006) Rheological and electrical properties of polycarbonate/multi-walled carbon nanotube composites. Polymer 47(12):4434–4439CrossRefGoogle Scholar
  8. 8.
    Rahatekar SS, Koziol KKK, Butler SA, Elliott JA, Shaffer MSP, Mackley MR, Windle AH (2006) Optical microstructure and viscosity enhancement for an epoxy resin matrix containing multiwall carbon nanotubes. J Rheol 50(5):599–610CrossRefGoogle Scholar
  9. 9.
    Sandler J, Shaffer MSP, Prasse T, Bauhofer W, Schulte K, Windle AH (1999) Development of a dispersion process for carbon nanotubes in an epoxy matrix and the resulting electrical properties. Polymer 40(21):5967–5971CrossRefGoogle Scholar
  10. 10.
    Martin CA, Sandler JKW, Shaffer MSP, Schwarz MK, Bauhofer W, Schulte K, Windle AH (2004) Formation of percolating networks in multi-wall carbon-nanotube–epoxy composites. Compos Sci Technol 64(15):2309–2316CrossRefGoogle Scholar
  11. 11.
    Kim J-B, Lee S-K, Kim C-G (2008) Comparison study on the effect of carbon nano materials for single-layer microwave absorbers in X-band. Compos Sci Technol 68(14):2909–2916CrossRefGoogle Scholar
  12. 12.
    Meade LE (1982) Handbook of composites: fabrication of advanced composites. Springer, Boston, p 492Google Scholar

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

Personalised recommendations