Modeling Shielding Effectiveness for Composite Walls of Concrete and Carbon Filaments
2013 (English)In: Progress In Electromagnetics Research M, ISSN 1937-8726, Vol. 28, 15-25 p.Article in journal (Refereed) Published
Concrete walls reinforced with rebars have poor shielding effectiveness for telecommunication frequencies (frequencies above 0.5 GHz). An effective method to increase the shielding effectiveness of the walls is to increase the complex permittivity of the concrete. This can be done by mixing in thin filaments of a material with high conductivity. One such material is carbon. In this paper the Maxwell Garnett mixing rule is used to model a concrete material with carbon filaments. The shielding effectiveness computed with the mixing rule is found to agree with previously published measurement results.
Place, publisher, year, edition, pages
EMW Publishing , 2013. Vol. 28, 15-25 p.
Carbon filaments, Complex permittivity, Composite wall, Concrete materials, Concrete wall, High conductivity, Maxwell-Garnett mixing, Measurement results, Mixing rules, Shielding effectiveness, Telecommunication frequencies, Thin filaments
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-109306ScopusID: 2-s2.0-84872077496OAI: oai:DiVA.org:kth-109306DiVA: diva2:581410
QC 201301312013-01-312013-01-022014-05-05Bibliographically approved