Steerable Beem Antenna Array

[Zolar V]

Hey, Could anyone explain to me just how a SBAA(Steerable Beem Antenna Array) works? I'm not quite sure how it works on the physics side or the physical side.

I know that an Antenna Array is just a array of antennas aranged in a perticular patter and have length properties proportionall to thier frequency ranges. Such as the smallest antenna in the array has to be less than 1/2 the smallest frequency in size, and the largest being greater than 1/2 the largest frequency in the array. IE 2-4ghz.

 

I'm not to worried about the Transmitt side of the stuff, i would just like to figure out how it recieves stuff. but if you would like to explain both..or all.. in detail that would be greatly appreciated.

 

Thank you