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High Field Magnetic Diffusion into Nonlinear Ferrimagnetic Materials

J-W. Braxton Bragg[1], J. Dickens[1], A. Neuber[1], and K. Long[2]
[1]Center for Pulsed Power and Power Electronics, Texas Tech University, Lubbock, TX
[2]Dept. of Mathematics, Texas Tech University, Lubbock, TX
Veröffentlicht in 2011

Ferrimagnetic based, coaxial nonlinear transmission lines (NLTLs) provide a means to generate sub-nanosecond risetime pulses (from nano-second input pulses) or megawatt level high power microwave oscillations, depending on the geometry, material, and external bias fields.

This investigation uses the commercially available, finite element solver COMSOL to provide insight into pulse behavior. Maxwell’s equations with nonlinear variables are solved for the ferrimagnetic material and pulse propagation is analyzed for axially symmetric (2D) coaxial line.

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