Scattering Invariant Mode Wave Propagation in 3-D Structure

This study examines low-loss microwave (MW) propagation in random media represented by 3-D agroforest models using antenna-beam forming. Low-loss propagation is achieved by creating scattering invariant modes (SIMs), which are less affected by the statistical variation of the media than the regular beams used in radio wave communication techniques. The 3-D numerical analysis of the forest calculates the SIMs. A hybrid method based on numerical calculations and the Foldy-Lax approximation is used to obtain fast results in the numerical analysis of the computationally large 3-D problem. This approach makes it possible to create numerous results for building statistics for sensitivity analysis. The robustness of the SIMs is examined by varying the geometry of the vegetation model. The novelty in the current work is the application of a 3-D scattering structure for the investigation of SIM waveform propagation.