Question: Estimate the Directivity for each length given in part a. and b. assuming that the effective dipole width is . Note that this effective width
Estimate the Directivity for each length given in part a. and b. assuming that the effective dipole width is . Note that this effective width is not saying that the physical width is the effective width. And it is taking into account that the dipole was a cosine current distribution which leads to magnetic field that is cosine shaped along the length of the dipole and thus an electric field generated by that magnetic field that is cosine shaped. Note that any directivity less than 1 is not physical and should be set to 1
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