Array factor

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The array factor is the complex-valued far-field radiation pattern obtained for an array of isotropic radiators located at coordinates , as determined by [1]

where are the complex-valued excitation coefficients, and is the direction unit vector. The array factor is defined in the transmitting mode, with the time convention .


  1. ^ "IEEE Standard for definitions of terms for antennas". IEEE Std. 2014.

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