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Which of the following antennas exhibit circular polarization?

Which of the following antennas exhibit circular polarization? Correct Answer Helical

Helical Antenna: 

It is a combination of an array of horizontal and vertical wires giving a polarization in both directions resulting in the circularly polarized wave.

Parabolic dish-

It radiates a narrow pencil-shaped beam along the axis of the dish.

Folded Dipole Antenna:

The radiation pattern of circular loop antennas will be the same as that of a folded dipole antenna, which is omnidirectional in nature.

NOTE-

Folded antenna is used in the YAGI-UDA antenna.

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