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Proceedings Paper

Expanded graphite/Novolac phenolic resin composite as single layer electromagnetic wave absorber for x-band applications
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Paper Abstract

Expanded graphite/novolac phenolic resin (EG/NPR) composites are developed as dielectric absorbers with 4mm thickness and its microwave absorption ability studied in the frequency range 8.4 to 12.4 GHz. A high reflection loss ~ -43 dB is observed at 12.4 GHz for 5 wt. % EG/NPR composites. With the increase in EG concentration in the composite the reflection loss decreases and the absorption peak shifts towards lower frequency. 7 wt. %, 8 wt. % and 10 wt. % composites shows a 10dB absorption bandwidth of order of 1GHz. Light weight EG/NPR composite shows potential to be used as cost-effective broadband microwave absorber over the X-band.

Paper Details

Date Published: 28 January 2013
PDF: 5 pages
Proc. SPIE 8760, International Conference on Communication and Electronics System Design, 876005 (28 January 2013); doi: 10.1117/12.2009485
Show Author Affiliations
Jyoti Prasad Gogoi, Tezpur Univ. (India)
Nidhi Saxena Bhattacharyya, Tezpur Univ. (India)

Published in SPIE Proceedings Vol. 8760:
International Conference on Communication and Electronics System Design
Vijay Janyani; M. Salim; K. K. Sharma, Editor(s)

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