Novel pattern synthesis approach of arrays with arbitrary architect- ures including mutual coupling and mounting platform effects

Abstract

A novel approach to pattern synthesis of antenna arrays with arbitrary architectures including mutual coupling and mounting platform effects is presented. In this method, the total pattern of the array is orthogonally decomposed into two subpatterns along two orthogonal spatial angle directions of the pattern. Subsequently, based on the active array antenna element pattern matrix, the array pattern synthesis matrix equation for each subpattern including mutual coupling and mounting platform effects is established. Under the constraint of l₂-norm minimization, the array pattern matrix equation for each subpattern is solved, yielding the current excitation of each array element. Two examples of pattern synthesis of antenna arrays with different architectures including mutual coupling and mounting platform effects using the new approach are presented to demonstrate its advantages. The method proves to be both flexible and effective for pattern synthesis across different architectures, as evidenced by the simulation and measured results.