Circular polarization Axial ratio in ADS

Hi all,
I was checking the examples given in ADS momentum folder. There r few examples of Antennas. In the related data display, ADS software plots 2 graps for Axial ratio . One is under "Circular polarization" heading and the other one is under the heading of "Linear polarization". These 2 graphs are plotted for all the antennas regardless of the fact that the given antenna provides linear or circular polarization. If the antenna is linearly polarized, I dont understand the meaning of the plot of "Circular polarization Axial ratio" & viceversa. By definition, Axial Ratio is the ratio of Electric field in Horizontal (vertical) to the Electric field in Vertical (horizontal) direction.

Mariya

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