CHAPTER 9Vertically Polarized Antennas
In previous chapters, we defined the polarization of an antenna as being the same as the orientation of the electrical (E) field for the antenna. The direction of the electric field for a specific antenna design is a function of the geometry of the radiating element(s). For a complex structure with different portions creating E-fields having different orientations and phasing, the “effective” E-field is the vector sum of all the individual E-fields and may not even be stationary. However, for the simple case of an antenna (or radiating element) consisting of a single wire or thin rod oriented vertically, the E-field points in the same direction as the long dimension of the antenna, so the antenna polarization ...
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