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circpol2pol

Convert circular component representation of field to linear component representation

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Syntax

fv = circpol2pol(cfv)

Description

example

fv= circpol2pol(cfv)converts the circular polarization components of the field or fields contained incfvto their linear polarization components contained infv. Any polarized field can be expressed as a linear combination of horizontal and vertical components.

Examples

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Open Live Script

Convert a horizontally polarized field, originally expressed in circular polarization components, into linear polarization components.

cfv = [1;1]; fv = circpol2pol(cfv)
fv =2×11.4142 0

输出是z的垂直分量o for horizontally polarized fields.

Open Live Script

Create a right circularly polarized field. Compute the circular polarization ratio and convert to a linear polarization ratio equivalent. Note that the input circular polarization ratio isInf.

cfv = [0;1]; q = cfv(2)/cfv(1); p = circpol2pol(q)
p = 0.0000 - 1.0000i

Input Arguments

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Field vector in its circular polarization representation specified as a 1-by-Ncomplex row vector or a 2-by-Ncomplex matrix. Ifcfvis a matrix, each column represents a field in the form of[El;Er], whereElandErare the left and right circular polarization components of the field. Ifcfvis a row vector, each column incfvrepresents the polarization ratio,Er/El. For a row vector, the valueInfcan designate the case when the ratio is computed forEl = 0.

Example:[1;-1]

Data Types:double
Complex Number Support:Yes

Output Arguments

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Field vector in linear polarization representation or Jones vector returned as a 1-by-Ncomplex-valued row vector or 2-by-Ncomplex-valued matrix.fvhas the same dimensions ascfv. Ifcfvis a matrix, each column offvcontains the horizontal and vertical linear polarization components of the field in the form,[Eh;Ev]. Ifcfvis a row vector, each entry infvcontains the linear polarization ratio, defined asEv/Eh.

References

[1] Mott, H.,Antennas for Radar and Communications, John Wiley & Sons, 1992.

[2] Jackson, J.D. ,Classical Electrodynamics, 3rd Edition, John Wiley & Sons, 1998, pp. 299–302

[3] Born, M. and E. Wolf,Principles of Optics, 7th Edition, Cambridge: Cambridge University Press, 1999, pp 25–32.

Extended Capabilities

Version History

Introduced in R2013a

See Also

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