In [[electrodynamics]] '''Ellipticalelliptical polarization''': is Inthe [[electromagnetic wavepolarization]] [[propagation]],of [[polarizationelectromagnetic radiation]] such that the tip of the [[electric field]] vector describes an [[ellipse]] in any fixed plane intersecting, and [[normal]] to, the direction of propagation. An elliptically polarized wave may be resolved into two linearly polarized waves in [[phase]] [[quadrature]] with their polarization planes at right angles to each other.
All forms of polarization can be considered elliptical, including [[circular polarization|circular]] and [[linear polarization]].
<i>Note 1:</i> An elliptically polarized wave may be resolved into two linearly polarized waves in [[phase]] [[quadrature]] with their polarization planes at right angles to each other.
<i>Note 2:</i> Circular and [[linear polarization]] are special cases of elliptical polarization.
Source: from [[Federal Standard 1037C]] and from [[MIL-STD-188]] and from [[MIL-STD-2196]]