L. Landesa et F. Obelleiro, Maximising directivity of array antennas mounted over complex environmentswith near-field null constraints, ELECTR LETT, 37(2), 2001, pp. 74-76
A technique is presented which allows array antennas to be synthesised unde
r the constraint of optimum directivity, taking into account the fact that
the antenna is embedded in a complex environment, and near-field null condi
tions to be imposed at a set of given points.