Meaning
High-frequency approximation method calculates wave propagation by solving the phase equation of the electromagnetic field. Eikonal ray tracing models the movement of signals as discrete lines that follow the path of least time through a complex environment. Design tools for indoor wireless networks utilize this technique to predict signal strength in areas with many obstructions.
Reflection and diffraction effects are calculated based on the geometry of walls and furniture to estimate the total path loss at any given coordinate.
Path Approximation
Simplification of the wave equations allows for faster processing compared to full-wave numerical solvers. While an eikonal ray tracing approach ignores some low-frequency phenomena, it provides sufficient accuracy for millimeter wave planning. Engineers save time during the layout of small cell base stations.
Surface Calculation
Material properties such as permittivity and conductivity influence the behavior of the simulated rays. An eikonal ray tracing simulation assigns specific loss values to different surfaces to mimic real-world materials like concrete or glass. Interaction points are logged to determine the multipath profile of the radio link.
Propagation Model
Coverage maps derived from these models guide the placement of repeaters and antennas. By identifying dead zones through eikonal ray tracing, the integrator optimizes the radio footprint of a smart building. The resulting data helps in establishing the minimum number of nodes required for a stable connection.
