- Tytuł:
- Improvement of Microwave Absorbance of Polymer Composites of W-Type Hexaferrite Powders by Attachment of Frequency Selective Surface
- Autorzy:
-
Cho, H.-S.
Kim, S.-S. - Powiązania:
- https://bibliotekanauki.pl/articles/352824.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
frequency selective surface
microwave absorbers
hexaferrite powders
polymer composites - Opis:
- This work investigates the effect of a frequency selective surface (FSS) composed of a regular array of square loop elements on the absorption properties of grounded ferrite composites. Polymer matrix composites of CoZnW hexaferrite powders having small magnetic loss were used as the substrate material. Computational tools were used to model the interaction between electromagnetic waves and materials and determine the reflection coefficient. Reflection loss and bandwidth were greatly improved by attaching an FSS with controlled electrical resistance (R) onto the grounded ferrite composites. For the FSS with R = 800 Ω, the minimum reflection loss decreased to –25 dB at 10 GHz and the bandwidth was broadened to 7.5-12.5 GHz with respect to –10 dB reflection loss.
- Źródło:
-
Archives of Metallurgy and Materials; 2017, 62, 2B; 1325-1328
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł