Nowadays, studies on investigating radar absorbing structure (RAS) using fiber reinforced polymeric (FRP) composite materials are becoming popular research field because the electromagnetic properties of FRP composites can be tailored effectively by just adding some electromagnetic powders, such as carbon black, ferrite, carbonyl iron, and etc., to the matrix of composites. The RAS works not only as a load bearing structure to hold the antenna system, but also has the important function of absorbing the in-band electromagnetic wave coming from the electromagnetic energy of tracking systems. In this study, E-glass fiber reinforced ripoxy resin composite was fabricated by blending the conductive carbon black (Ketjenblack EC300J) with the binder matrix of the composite material and maximizing the coefficient of absorption more than 90% (more than-10 dB) within the X-band frequency (8-12 GHz). It was measured by electrical conductivity (LCR meter) and vector network analyzer (VNA). Finally, the composite RAS with 0.02 weight fraction of carbon black and 4 plies of E-glass fiber showed thickness of 2.1 mm, electrical conductivity of 8.33 × 10-6 S/m, and maximum reflection loss of-27.123 dB, which can absorb more than 90% of incident EM wave throughout the entire X-band frequency range, has been developed.

Original languageEnglish
Title of host publicationInternational Conference on Theoretical and Applied Physics, ICTAP 2012
Number of pages4
Publication statusPublished - 2013
Event2nd International Conference on Theoretical and Applied Physics, ICTAP 2012 - Palangkaraya, Central of Kalimantan, Indonesia
Duration: 19 Oct 201220 Oct 2012

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference2nd International Conference on Theoretical and Applied Physics, ICTAP 2012
CityPalangkaraya, Central of Kalimantan


  • E-glass/ripoxy composite
  • carbon black
  • radar absorbing structure


Dive into the research topics of 'Effect of weight fraction of carbon black and number of plies of E-glass fiber to reflection loss of E-glass/ripoxy composite for radar absorbing structure (RAS)'. Together they form a unique fingerprint.

Cite this