The term "array factor" typically refers to a mathematical construct used in the analysis of antenna arrays in the field of electromagnetics and telecommunications. Specifically, it describes how the radiation pattern of an antenna array varies as a function of the orientation and positions of the individual antennas within the array. ### Key Points about Array Factor: 1. **Definition**: The array factor is a quantity that represents the radiation pattern of an antenna array, neglecting the effects of the individual antenna elements.
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The array factor describes the interference between the elements of a phased array, separately from the radiation pattern of each element. For identical equally spaced elements,At the limiting value has magnitude . The total intensity is proportional to times the single-element antenna beam pattern.