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Title: Enhanced microwave magnetic and attenuation properties for barium ferrite flaky-filler composites
Authors: Li, Z.W. 
Yang, Z.H. 
Kong, L.B. 
Keywords: Electromagnetic (EM) compatibility and interference
magnetic susceptibility
microwave magnetics
Issue Date: Oct-2011
Source: Li, Z.W., Yang, Z.H., Kong, L.B. (2011-10). Enhanced microwave magnetic and attenuation properties for barium ferrite flaky-filler composites. IEEE Transactions on Magnetics 47 (10) : 3712-3715. ScholarBank@NUS Repository.
Abstract: Microwave reflection characteristics as well as high frequency magnetic and dielectric properties have been studied for composites filled with Z-type barium ferrite flakes. Results show that both μ0′ and μmax″ are enhanced, while ε′ is almost the same, as compared to conventional composites. Therefore, the percentage bandwidth WP is significantly widened for the flaky-filler composites; W P achieves 130%-150% for reflection loss RL < -10 dB. In addition, for all composites, two matching frequencies are found. The first matching frequency is attributed to the quarter-wavelength resonator and the second matching frequency is mainly controlled by the values of both μ′(f) and ε′(f) , where μ′/ε′=1/3. © 2011 IEEE.
Source Title: IEEE Transactions on Magnetics
ISSN: 00189464
DOI: 10.1109/TMAG.2011.2158394
Appears in Collections:Staff Publications

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