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A parabolic antenna is an antenna that uses a parabolic reflector, a curved surface with the cross-sectional shape of a parabola, to direct the radio waves.The most common form is shaped like a dish and is popularly called a dish antenna or parabolic dish.n advantage of parabolic antennas is that most of the structure of the antenna (all of it except the feed antenna) is nonresonant, so it can function over a wide range of frequencies, that is a wide bandwidth.
Progress In Electromagnetics Research B, Vol. 16, 2009 215. at any iteration is linearly polarized, the antenna is illuminated by a. plane wave of circular polarization of right-hand sense in y-z plane. The value of the polarization mismatch factor is 0.5 and is constant. with the frequency variation.