Distributive radiation characterization based on the PEEC method

The intentional and unintentional radiations are of great importance to electromagnetic coupling and radiation problems in both high and low frequency regimes. However, conventional computational methods emphasize the port-to-port performance instead of the detailed radiation mechanism that is critical to designs and optimizations. In this paper, we employ the PEEC method to quantitively analyze, model, and illustrate how the energy is coupled and radiated. We also try to point out, based on calculations, which part is a greater contributor to the wanted or unwanted radiation. Employing the dynamic Green´s function, the power terms associated with the inductive and capacitive components in the PEEC model can be explicitly extracted and categorized. Then the power relationship between multi-radiators and sub-segmentations of a single radiator can be analyzed clearly. How the partial elements contribute to radiation and transmission powers is also demonstrated at the end of the paper.