Development of hybrid composite radar wave absorbing structure for stealth applications

Bulletin of materials science

V A Nagarajan¹  T Annil Kumar²  S Hari Kumar³  J Inayathullah² 

[1] Department of Mechanical Engineering, University College of Engineering, Nagercoil 629 004, India$$Department of Mechanical Engineering, University College of Engineering, Nagercoil 629 004, IndiaDepartment of Mechanical Engineering, University College of Engineering, Nagercoil 629 004, India$$;Department of Aeronautical Engineering, Noorul Islam Centre for Higher Education, Kumaracoil 629 180, India$$Department of Aeronautical Engineering, Noorul Islam Centre for Higher Education, Kumaracoil 629 180, IndiaDepartment of Aeronautical Engineering, Noorul Islam Centre for Higher Education, Kumaracoil 629 180, India$$;Department of Communication Engineering, Noorul Islam Centre for Higher Education, Kumaracoil 629 180, India$$Department of Communication Engineering, Noorul Islam Centre for Higher Education, Kumaracoil 629 180, IndiaDepartment of Communication Engineering, Noorul Islam Centre for Higher Education, Kumaracoil 629 180, India$$

关键词: Stealth;    radomes;    sandwich;    balsa wood;    nylon 6/6.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

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.

【 授权许可】

Unknown