Abstract:

A‘+’1ike adaptive antenna array is presented.By using the DMI a1gorithm，simu1ation processes of its radiation pattern，signa1-to-noise of output signa1s about input ang1e and input interference signa1 strength are compared to the other two antenna arrays（uniform 1inear array and uniform circu1ar array）.Conc1usion is using this antenna array，its radiation pattern is better than the other two，especia11y can e1iminate the case that when input interference signa1 and expectation signa1 are symmetry the uniform 1inear array does not work.Its output signa1-to-noise same to uniform 1inear array，better than uniform circu1ar array.The size of array is sma11er than uniform 1inear array，bigger than uniform circu1ar array.

Key words: smart antenna, antenna array, radiation pattern, signa1-to-noise