Polarization.

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Presentation transcript:

Polarization

Radiation pattern http://ocw.mit.edu/ans7870/8/8.02T/f04/visualizations/light/01-DipoleRadiation/01-Dipole_320.html

Electromagnetic Waves

Crossed Dipoles

Linear Polarization

Linear Polarization y z

Circular Polarization

Circular Polarization A left-handed/counter-clockwise circularly polarized wave as defined from the point of view of the source. It would be considered right-handed/clockwise circularly polarized if defined from the point of view of the receiver.

Circular Polarization

Left Circular Right Circular

Elliptical Polarization Different amplitudes and Phase difference = /2 Elliptical Polarization

Elliptical Polarization Different amplitudes and Phase difference not /2 Elliptical Polarization