Research using OpenEMS

  Analyzing the provided openEMS code for errors or issues Okay, let's tackle this openEMS code correction. First, I'll go through the user's code step by step to identify possible issues Starting with the simulation parameters. The frequency range is 2-4 GHz, which makes sense for through-wall applications. The mesh resolution is set to lambda/30, which should be fine, but maybe check if it's too coarse for the PBG structure Looking at the FDTD setup, they're using PML boundaries on all sides. For antenna simulations, sometimes it's better to use MUR absorbing boundaries instead of PML, especially if the structure is radiating into free space. But PML might be okay here. The Gaussian excitation is centered at 3 GHz, which is correct The substrate is FR4 with a thickness of 1.6 mm. The code adds a box for the substrate, but the dimensions are 100x100 mm. That seems a bit large. Maybe reduce it to save computation time, but ensure it's larger than the PBG and...