The diagonal components of the input refractive index matrix correspond to the semi-axes of the so called index ellipsoid. You can orient the index ellipsoid by first creating a suitably oriented coordinate system below the Definitions node for the model component. Then select the created coordinate system in the Coordinate system setting in the Coordinate System Selection section in the settings for the Wave Equation, Electric feature.
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For Relative permeability the relative permeability μr uses values From material. For User defined select Isotropic, Diagonal, Symmetric, or Full based on the characteristics of the magnetic field, and then enter values or expressions in the field or matrix. If Effective medium is selected, the Effective Medium subnode is available from the context menu (right-click the parent node) or from the Physics toolbar, Attributes menu.
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For Magnetic losses the default values for Relative permeability (real part) μ′ and Relative permeability (imaginary part) μ″ are taken From material. For User defined enter different values.
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For User defined select Isotropic, Diagonal, Symmetric, or Full based on the characteristics of the current and enter values or expressions in the field or matrix.
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For Linearized resistivity the default values for the Reference temperature Tref (SI unit: K), Resistivity temperature coefficient α (SI unit: 1/K), and Reference resistivity ρ0 (SI unit: Ω⋅m) are taken From material. For User defined enter other values or expressions for any of these variables.
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When Effective medium is selected, the Effective Medium subnode is available from the context menu (right-click the parent node) or from the Physics toolbar, Attributes menu.
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When Archie’s law is selected, the Archie’s Law subnode is available from the context menu (right-click the parent node) or from the Physics toolbar, Attributes menu.
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