Scattering Analysis of Array Antennas with Synthetic Functions

Abstract

Synthetic basis functions method (SBFM) is adopted to analyze the scattering properties of array antenna’s structural mode. SBFM is a high order approach of method of moment (MoM) which uses synthetic functions in place of RWG functions to discretize integral equations. Compared to standard MoM, SBFM can decrease memory cost and improve efficiency. Especially for periodic structures, synthetic functions defined on different elements can be reused which will drastically improves efficiency. So, SBFM is perfectly suitable for the analysis of array antennas. Based on this, two typical array antennas are analyzed with SBFM and results validate the approach’s accuracy and efficiency.