Numerical Simulation Platform Development for Analyzing Near-Field Microwave Brightness Temperature Transfer

In the current development context of microwave radiometer calibration, the focus for the calibration target has shifted from the EM and thermal characteristics of the target itself to the optimization of total brightness temperature characteristics; As for the calibration link, with the focus on brightness temperature transfer in the near-field, it has gradually evolved from 2D qualitative analysis to 3D quantitative analysis. In this letter, a numerical simulation platform development for analyzing near-field microwave brightness temperature transfer is reported. Introduced the application background and development status of the numerical simulation platform, including the FDTD solver platform for scattering & reflectivity problems and near-field brightness temperature transfer. In addition, prospects and outlooks were made for future applications.