Ratio of vertical to horizontal linear polarization components of a field
p = polratio(fv)
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
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.
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
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
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.
Usage notes and limitations:
Does not support variable-size inputs.