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Development of hybrid composite radar wave absorbing structure for stealth applications

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Abstract

The ideally invisible stealth radomes are usually sandwiched constructions composed of E-glass/epoxy composite, polyvinyl chloride foam and frequency selective surfaces (FSS). Nylon 6/6 and balsa wood are well known for their low dielectric properties. In this work the electromagnetic (EM) wave transmission characteristics of the existing stealth radomes were improved by employing nylon 6/6 fibre and balsa wood, along with E-glass/epoxy composite without compromising the mechanical properties. The free space measurement technique was performed to measure the EM wave transmission characteristics in the X-band frequency range (8.2–12.4 GHz) for a specific FSS. The flexural strength of the sandwiched constructions were investigated with three-point bending test.

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Acknowledgements

This project was purely inspired by the works of Lee DG et al. The authors honor their research. The technical support is provided by Jaya KJ, Shanti N, Amala SS, Arockia SSG and Sucharitha M—Faculty of Electronics and Communication Engineering, Noorul Islam University, Kumaracoil, India. The authors thank them. The EM transmission characteristics were measured in Microwave Laboratory, Noorul Islam University, Kumaracoil, India. The three-point bending test is performed in Omega Inspection & Analytical Laboratory—Chennai, India.

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Authors and Affiliations

  1. Department of Aeronautical Engineering, Noorul Islam Centre for Higher Education, Kumaracoil, 629 180, India

    T ANNIL KUMAR & J INAYATHULLAH

  2. Department of Mechanical Engineering, University College of Engineering, Nagercoil, 629 004, India

    V A NAGARAJAN

  3. Department of Communication Engineering, Noorul Islam Centre for Higher Education, Kumaracoil, 629 180, India

    S HARI KUMAR

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  1. T ANNIL KUMAR
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  2. J INAYATHULLAH
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Correspondence to T ANNIL KUMAR.

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KUMAR, T.A., INAYATHULLAH, J., NAGARAJAN, V.A. et al. Development of hybrid composite radar wave absorbing structure for stealth applications. Bull Mater Sci 39, 279–284 (2016). https://doi.org/10.1007/s12034-015-1133-3

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  • DOI: https://doi.org/10.1007/s12034-015-1133-3

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