AW Modeler is a WIPL‑D front‑end for easy modeling of 3D objects and is particularly well suited for planar structures, such as microstrip. A 3D object can be interactively created and edited, by mouse point‑and‑click, on a non‑uniform grid specified by symbols. The object can be composed of wires and planar polygons with arbitrary number of vertices. A polygon can have thickness to model finite thickness metallization. AW Modeler automatically generates vias, radial stubs and circular patches, and feeders as separate entities.
Simulation models created by AW Modeler are automatically converted to WIPL‑D projects for further analysis and optimization. The user is free from manual meshing the structure: AW Modeler accurately and appropriately meshes all polygons, vias, metallization, and other.
Alternatively, DXF files can be imported to AW Modeler, edited if desired, and converted to WIPL‑D projects.
For more info, please check the following brochure.
Example: Log-Periodic Dipole Antenna in AW Modeler
Log‑Periodic Dipole Antenna with the 52 printed dipoles is created in WIPL‑D AW Modeler and then simulated in WIPL‑D Pro. The symmetry was applied, as well as edge manipulation (other simulation parameters are left at the default). Entire antenna is around 261 mm long and it is placed 4.25 mm away from the metallic circle with diameter 248 mm. The longest arm of the antenna is around 76.2 mm long and length of the shortest one is around 1.53 mm.
Simulation times and number of unknowns needed for simulating LPDA antenna at different operating frequencies in the frequency range from 1 GHz to 18 GHz, are presented in this application note. The simulation hardware is standard desktop PC, empowered by low-end Nvidia GPU card (GPU solver was used to speed‑up matrix inversion).