Process-oriente CAD of rectangular coaxial line components for beam forming networks

Process-ready characterizations of rectangular coaxial lines components for beam formilng networks can be obtained employing both mode matching (MM) and finite difference time domain (FDTD) simulations. MM is quite efficient but cannot deal with arbitrary geometries, whilst FDTD has great versatility but rather poor numerical efficiency. The combination of both methods allows an accurate, process-oriented, characterization of the component to be obtained. Sophisticated beam forming networks can be designed without time-consuming and expensive cut and try procedures.