EQUIVALENCE OF NULL CONSTRAINED OPTIMISATION PROBLEMS IN ANTENNA ARRAY PATTERN SYNTHESIS.
S. Thomas Ng · The HKU Scholars Hub (University of Hong Kong) · 1987
Several approaches in formulating the null constrained optimization problem in antenna array pattern synthesis are reviewed and shown to yield equivalent solutions. The mainlobe gain reduction and angular shift which are inherent to the null constrained problem are discussed. It is demonstrated that although the mainlobe can be constrained in the look direction, it can only be accomplished at the cost of further reduction in the mainlobe gain or SNR.