Measurement of complex permittivity and permeability of carbonyl iron powders at microwave frequencies

2004 ◽  
Vol 42 (6) ◽  
pp. 458-459 ◽  
Author(s):  
Yong Wang ◽  
Mohammed N. Afsar
Keyword(s):  
Complex Permittivity ◽  
Carbonyl Iron ◽  
Microwave Frequencies ◽  
Iron Powders ◽  
Permittivity And Permeability

scholarly journals Complex Permittivity and Permeability Measurements and Numerical Simulation of carbonyl iron rubber in X-Band frequency

2014 ◽  
Vol 30 (2) ◽  
pp. 419-425 ◽  
Author(s):  
Adriano Luiz de Paula ◽  
Marcelo Bender Perotoni ◽  
Adriana Medeiros Gama ◽  
Luiz Alberto de Andrade
Keyword(s):  
Numerical Simulation ◽  
Complex Permittivity ◽  
Carbonyl Iron ◽  
Band Frequency ◽  
X Band ◽  
Permittivity And Permeability

Frequency dispersive complex permittivity and permeability of ferromagnetic metallic granular composite at microwave frequencies

2011 ◽  
Vol 323 (23) ◽  
pp. 3081-3086 ◽  
Author(s):  
Ping Chen ◽  
Min Liu ◽  
Ling Wang ◽  
Yin Poo ◽  
Rui-xin Wu
Keyword(s):  
Complex Permittivity ◽  
Microwave Frequencies ◽  
Granular Composite ◽  
Permittivity And Permeability

Complex Permittivity and Permeability of Vanadium Dioxide at Microwave Frequencies

2019 ◽  
Vol 67 (7) ◽  
pp. 2805-2811 ◽  
Author(s):  
Benjamin J. Mapleback ◽  
Kelvin J. Nicholson ◽  
Mohammad Taha ◽  
Thomas C. Baum ◽  
Kamran Ghorbani
Keyword(s):  
Complex Permittivity ◽  
Vanadium Dioxide ◽  
Microwave Frequencies ◽  
Permittivity And Permeability

Electromagnetic Characteristics of Composites Based on Multiferroics Powders at Microwave Frequencies

2015 ◽  
Vol 1085 ◽  
pp. 214-217
Author(s):  
Yelena V. Zhuravlyova ◽  
Olga Dotsenko
Keyword(s):  
Composite Materials ◽  
Polymer Composite ◽  
Complex Permittivity ◽  
Polymer Composite Materials ◽  
Microwave Frequencies ◽  
Permittivity And Permeability ◽  
Electromagnetic Characteristics

The results of researches of polymer composite materials are given in this paper. The fillers of composites were: hexaferrite BaCo0.7Zn1.3Fe16O27; and BaTiO3, CaTiO3, Bi4Ti3O12 were chosen as the ferroelectric components. Results of the researches of complex permittivity and permeability showed that composite of W-hexaferrite BaCo0.7Zn1.3Fe16O27 and CaTiO3 had the best electromagnetic characteristics.

Complex permittivity and permeability of metallic magnetic granular composites at microwave frequencies

2005 ◽  
Vol 38 (14) ◽  
pp. 2302-2305 ◽  
Author(s):  
Ping Chen ◽  
R X Wu ◽  
Tianen Zhao ◽  
Fan Yang ◽  
John Q Xiao
Keyword(s):  
Complex Permittivity ◽  
Microwave Frequencies ◽  
Permittivity And Permeability ◽  
Granular Composites

Complex permittivity and permeability of Co-substituted NiCuZn ferrite at rf and microwave frequencies

2006 ◽  
Vol 16 (4) ◽  
pp. 331-335 ◽  
Author(s):  
Mukesh C. Dimri ◽  
Subhash C. Kashyap ◽  
D. C. Dube ◽  
S. K. Mohanta
Keyword(s):  
Complex Permittivity ◽  
Microwave Frequencies ◽  
Permittivity And Permeability ◽  
Nicuzn Ferrite

scholarly journals Calculating the Effective Permittivity and Permeability of Composites Based on the Dilution Process Model

2017 ◽  
Vol 26 (6) ◽  
pp. 096369351702600
Author(s):  
Liming Yuan ◽  
Bin Wang ◽  
Yonggang Xu ◽  
Qilin Wu
Keyword(s):  
Complex Permittivity ◽  
Carbonyl Iron ◽  
Process Model ◽  
Volume Fraction ◽  
Effective Medium Theory ◽  
Particle Volume Fraction ◽  
Effective Permittivity ◽  
Iron Particles ◽  
Particle Volume ◽  
Permittivity And Permeability

In order to solve the engineering problem of calculating the effective permittivity and permeability of composites, this paper introduced a dilution process model (DPM) which sets the composite of the highest particle volume fraction as the new matrix medium and the old matrix medium as the inclusion. With DPM, complex permittivity and permeability of composites could be calculated by the Maxwell Garnett (MG) formula, the Bruggeman (BG) formula and the generalized effective medium theory (GEMT) with a fitting parameter of V which is a second-degree polynomial of new particle volume fraction. With the proposed method, the effective complex permittivity and permeability of composites consisting of isotropic spherical carbonyl iron particles (SCIPs) or anisotropic flaky carbonyl iron particles (FCIPs) embedded in paraffin are calculated. Comparisons are performed among the calculated results by different formulae and the measured results. It indicates that the calculated results by the GEMT formula with DPM are in great agreement with the measured results. The achievement of this paper has am important theoretical significance and engineering application.

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