Analysis of large aperture antenna arrays using a hybrid mode matching/characteristic basis functions method

In this paper, the authors propose a novel full-wave hybrid mode MM/CBMoM technique for the analysis of large arrays of waveguide radiators. Even for large and complex array problems, the CBFM leads to relatively small-size matrices and enables the use of direct solvers. Two different types of CBFs are generated for each radiating aperture to interpolate the equivalent surface current behavior. Some results compared to a standard MM/MoM approach are proposed to prove the effectiveness of the proposed approach.