chaching the Gain of each polarization

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antenna_beginner

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Hello , the Sinuous antenna that i have built is dual polarized because it hase two orthogonal dipole feed,i have attached the diagram and farfield results of the simulation.
this antena is dually polarized, i have used ludwig 3 on vertical /horizontal as shown in the attached photos.
how can i interpret the ludwig 3 diagram and get the directivity of each polarization.

thanks
 

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The directivity diagram dosen't look right. As it is symmetrical you should have the same radion pattern in H and V.
It looks like it's basically is just a wrinkled up cross dipole, if so it should have the same radiation pattern as a dipole.
 

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