Patent ID: 8238977
Filing Date: 2012-08-07
Classification: H01Q,H04W

Abstract:
1. A multi-beam antenna system, comprising: at least two antennas defining at least two respective antenna beams which form a coverage area; at least one signal generator operable to generate a respective signal for each of the at least two antennas, each respective signal comprising a common part and a unique part, the common part being common to the at least two signals and using a coverage area spreading code; transceiver and beam-forming circuitry operable to couple the at least one signal generator to the antennas, the respective signals to be transmitted substantially simultaneously; and for adjacent antennas, the respective common part having a micro-timing offset applied to the coverage area spreading code of one antenna relative to the coverage area spreading code of the other antenna of the at least two antennas, the micro-timing offset being large enough that destructive cancellation substantially does not occur between the respective signal common parts transmitted on the respective adjacent beams.