New materials for electromagnetic shielding: Metal foams with plasma properties
✍ Scribed by Giuseppina Monti; Luca Catarinucci; Luciano Tarricone
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 879 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
In this article, the use of metal foams for shielding problems is investigated on the bases of an “effective medium approach.” Specifically, a shielding effectiveness analysis has been performed by modeling metal foams as a homogeneous medium described by a plasma dispersion profile.The suggested approach is experimentally validated demonstrating that metal foams behave like a plasma medium, with a plasma frequency in the microwave range. The proposed effective medium approach has also been implemented both with a proprietary and with a commercial full‐wave simulator. Results demonstrate that, by using the plasma model, general electromagnetic analysis of metal foams can be performed with common simulators and with affordable computational efforts. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1700–1705, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25309