Development of hybrid composite radar wave absorbing structure for stealth applications

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 tran...

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Bibliographic Details
Published in:Bulletin of materials science 2016-02, Vol.39 (1), p.279-284
Main Authors: KUMAR, T ANNIL, INAYATHULLAH, J, NAGARAJAN, V A, KUMAR, S HARI
Format: Article
Language:English
Subjects:
Aircraft
Balsa
Bandwidths
Bond strength
Chemistry and Materials Science
Dielectric properties
E glass
Electric fields
Engineering
Epoxy adhesives
Epoxy resins
Flexural strength
Frequency ranges
Frequency selective surfaces
Glass-epoxy composites
Hybrid composites
Materials Science
Mechanical properties
Modulus of rupture in bending
Nylon 66
Polyvinyl chloride
Radomes
Stealth technology
Superhigh frequencies
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Summary: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.
ISSN:0250-4707
0973-7669
DOI:10.1007/s12034-015-1133-3