Ratio of vertical to horizontal linear polarization components of a field
Each column of
fv contains the linear polarization
components of a field in the form
the field’s linear horizontal and vertical polarization components.
The expression of a field in terms of a two-row vector of linear polarization
components is called the Jones vector formalism.
fv can refer to either the electric
or magnetic part of an electromagnetic wave.
Each entry in
p contains the ratio
the components of
Polarization Ratio for 45° Linearly Polarized Field
Determine the polarization ratio for a linearly polarized field (when the horizontal and vertical components of a field have the same phase).
fv = [2;2]; p = polratio(fv)
p = 1
The polarization ratio is real. Because the components have equal amplitudes, the polarization ratio is unity.
Polarization Ratios for Two Fields
Compute the polarization ratios for two fields. The first field is (2;i) and the second is (i;1).
fv = [2,1i;1i,1]; p = polratio(fv)
p = 1×2 complex 0.0000 + 0.5000i 0.0000 - 1.0000i
Polarization Ratio for Vertically Polarized Field
Determine the polarization ratio for a vertically polarized field (the horizontal component of the field vanishes).
fv = [0;2]; p = polratio(fv)
p = Inf
The polarization ratio is infinite as expected from the definition, Ev/Eh.
fv — Field vector in linear component representation
2-by-N complex-valued matrix
Field vector in linear component representation specified as
a 2-by-N complex-valued matrix. Each column of
an instance of a field specified by
the field's linear horizontal and vertical polarization components.
Two rows of the same column cannot both be zero.
Example: [2 , i; i, 1]
Complex Number Support: Yes
 Mott, H., Antennas for Radar and Communications, John Wiley & Sons, 1992.
 Jackson, J.D. , Classical Electrodynamics, 3rd Edition, John Wiley & Sons, 1998, pp. 299–302
 Born, M. and E. Wolf, Principles of Optics, 7th Edition, Cambridge: Cambridge University Press, 1999, pp 25–32.
C/C++ Code Generation
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Usage notes and limitations:
Does not support variable-size inputs.
Introduced in R2013a