The simplest way to approach the problem is to treat each material as a homogeneous continuum, described by a frequency-dependent relative permittivity between the external medium and the surface.
32.
This could be accomplished by introducing a metamaterial with a specific localized permittivity and a specific localized magnetic permeability, which then affects the relative permittivity and permeability of the overall microstrip line.
33.
Where k is the wavenumber of the electric field, R is the radius of the particle, is the relative permittivity of the dielectric medium and is the relative permittivity of the nanoparticle defined by
34.
Where k is the wavenumber of the electric field, R is the radius of the particle, is the relative permittivity of the dielectric medium and is the relative permittivity of the nanoparticle defined by
35.
The small physical dimensions of PET film capacitors are the result of a high relative permittivity of 3.3, combined with a relatively high dielectric strength leads to a relatively high volumetric efficiency.
36.
The value 1 + ? is called the " relative permittivity " of the medium, and is related to the refractive index " n ", for non-magnetic media, by
37.
The linear permittivity of a homogeneous material is usually given relative to that of free space, as a relative permittivity " ? " r ( also called dielectric constant, although this sometimes only refers to the static, zero-frequency relative permittivity ).
38.
The linear permittivity of a homogeneous material is usually given relative to that of free space, as a relative permittivity " ? " r ( also called dielectric constant, although this sometimes only refers to the static, zero-frequency relative permittivity ).
39.
In which ? i is the relative permittivity along the x, y, or z axis, and R is the reduced displacement vector defined as D i / " 8?W in which D i is the electric displacement vector and W is the field energy.
40.
Where " ? " is the angular frequency of the exciting radiation, " ? " r 3 is the imaginary part of the complex relative permittivity of the absorbing material, " ? " 0 is the permittivity of free space and " E " the electric field strength.
