DocumentCode :
2553769
Title :
Dissipation in composites with high-loss and lossless components
Author :
Figotin, Alexander ; Welters, Aaron
Author_Institution :
University of California, Irvine, USA
fYear :
2012
fDate :
8-13 July 2012
Abstract :
Summary form only given. Use of low-loss magnetic materials in high-power microwave devices can improve significantly their performance. We have demonstrated1 that the electromagnetic losses in the composite structure can be reduced by up to two orders of magnitude, compared to those of the uniform magnetic sample made of the same lossy magnetic material. Importantly, the dramatic absorption reduction is not a resonance effect and occurs over a broad frequency range covering a significant portion of the respective photonic frequency band. The optimal configuration of the composite may depend on the dominant physical mechanism of absorption, such as electric conductivity or domain wall friction.
Keywords :
Absorption; Educational institutions; Magnetic domain walls; Magnetic domains; Magnetic losses; Magnetic materials; Optical losses;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Plasma Science (ICOPS), 2012 Abstracts IEEE International Conference on
Conference_Location :
Edinburgh
ISSN :
0730-9244
Print_ISBN :
978-1-4577-2127-4
Electronic_ISBN :
0730-9244
Type :
conf
DOI :
10.1109/PLASMA.2012.6383333
Filename :
6383333
Link To Document :
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