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The lead sentence says:

"An array factor is a set of N identical antennas which face the same direction..."

If whoever wrote this totally erroneous stub had read the references which he himself had added, he would have found that the array factor is a mathematical factor A used to multiply the individual element's directivity function to get the array's directivity:

${\displaystyle f_{\text{array}}(\theta ,\phi )=Af_{\text{element}}(\theta ,\phi )\,}$

If you don't know the subject, don't edit the article. -- Chetvorno ^TALK 07:20, 30 October 2016 (UTC) reply

Rewrote article -- Chetvorno ^TALK 20:25, 10 November 2016 (UTC) reply

Totally fixed

The article had been removed, so I wrote a new article from scratch! Now it is correct! -- Henrik Frid ^TALK 2019-01-07

What is k?

What is the variable k describing in the formula?-- GURKEdeluxe ( talk) 13:39, 11 March 2021 (UTC) reply