Performance of adaptive array antennas in mobile fading environment

A performance comparison between uniformly and non-uniformly spaced adaptive array antennas in a mobile fading environment is presented. Here, deterministic and simulation models of the frequency-non-selective mobile fading channels are investigated and used to explain the behaviour of steered beam adaptive arrays in terms of the output signal-to-interference-plus-noise ratio and pointing accuracy. It is found that the non-uniformly spaced arrays give a performance improvement of >25% in comparison with the uniformly spaced arrays.