Though the 802.11n specification details beam forming it appears the only manufacturer to explicitly market their product as doing beam forming is Ruckus. Does anyone know if other manufacturer's products with multiple antennas do any kind of beam forming, or do the offerings of other manufacturers with multiple antennas merely use one antenna or the other at any given instant. I understand that Ruckus' product is highly specialized in the antenna/beam forming aspect and has a very involved antenna array and control system, but still the other manufacturer's products with only two simple rubber duckies could still do some pattern shaping if the phasing of the two antennas is varied, not as effectively as the Ruckus products of course, but it would offer some improvement as far as gain and especially multipath/interference rejection.
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