elliptical polarization


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Related to elliptical polarization: Circular polarization, Linear polarization

elliptical polarization

See polarization.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

elliptical polarization

[ə′lip·tə·kəl ‚pō·lə·rə′zā·shən]
(electromagnetism)
Polarization of an electromagnetic wave in which the electric field vector at any point in space describes an ellipse in a plane perpendicular to the propagation direction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
We note that the dependence on [kappa] makes the electric and magnetic fields nonorthogonal (Figure 3) and the elliptical polarization of magnetic field depend on [kappa] (Figure 4).
Furthermore, we exhibited numerically the consequences of this effect in the cases of linear and elliptical polarization, in particular, the regimes of nonorthogonality of the electromagnetic wave fields and the eccentricity of the elliptical polarization of the magnetic field with dependence on the [kappa]-term.
In general, the mean polarization on (x-y) plane corresponds to elliptical polarization, containing the case of linear polarization which occurs when y = 0.
In general, the mean polarization on (x-z)plane corresponds to elliptical polarization.
the hypothesis that a wave with linear or elliptical polarization has arrived is accepted, and the arrival of a polarized wave is estimated to have a significance level [alpha].
Advantages of the method are that wave polarization is evaluated by using three-component signals in the time and frequency domains and that the polarized waves can thus be detected with low S/N, allowing linear and elliptical polarization to be distinguished, whereas it is difficult to identify the reflected waves by direct use of the waveform because of its very low amplitude.
Meanwhile, with quick adjustments to polarization changes, "This will make it quick and easy for broadcasters to shift from horizontal to the elliptical polarization needed for mobile devices under ATSC3.0 when they are ready.
In order to check whether this cross-polarized transmission corresponds to a rotation of the polarization plane (electromagnetic activity) or a change to elliptical polarization (circular dichroism), the rotation angle and ellipticity of the transmitted wave were computed, the results being shown in Figure 7.
This is in contrast with 3D chirality, where the sense of such rotation does not change upon reversal of the observation direction [16]; in this case, the eigenmodes are two corotating elliptical polarizations, instead of contrarotating circular polarizations, as in 3D chiral (bi-isotropic) materials [14, 19].
From the relationship of Ex's and Ey's amplitude and phase, we can conclude that the electromagnetic wave has three polarizations: linear polarization, circular polarization, and elliptical polarization. If z = 0,
As a result, this polarization wave is named as elliptical polarization wave.
Accordingly, different solutions have been presented in the literature for minimizing the cross-polar pattern, when a linear polarization is desired [9-11], or for enabling the generation of more specific circular or even elliptical polarizations [12,13].