Patent ID: 7079866
Filing Date: 2006-07-18
Classification: H01Q

Abstract:
1. An adaptive array antenna comprising: an array antenna including a plurality of antenna elements; a plurality of reception means for receiving reception signals from the respective antenna elements, multiplying the reception signals by respective reception weighting coefficients, and outputting the weighted reception signals; a plurality of transmission means for multiplying transmission signals by respective transmission weighting coefficients and then transmitting the weighted transmission signals from the respective antenna elements; reference signal transmission means for transmitting a predetermined reference signal from an antenna element of the plurality of antenna elements; signal component separation means for separating each of the reception signals into a correlated signal component correlated with the reference signal and an uncorrelated signal component uncorrelated with the reference signal, said uncorrelated signal component originating from a correlation canceler; and weighting coefficient correction means for updating each of the transmission weighting coefficients on the basis of the corresponding correlated signal component.