The clever part is that although it's trivial to point a high-gain antenna towards the source of the best signal, most people don't. Deltenna pack extremely high-gain antennas into a small package and all the user needs to do is sit it somewhere near a window. The WiBE' uses electronic beam-forming to get a high gain in the correct direction and periodically repeats the process so that the best signal is always selected.
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The clever part is that although it's trivial to point a high-gain antenna towards the source of the best signal, most people don't. Deltenna pack extremely high-gain antennas into a small package and all the user needs to do is sit it somewhere near a window. The WiBE' uses electronic beam-forming to get a high gain in the correct direction and periodically repeats the process so that the best signal is always selected.