Radar Cross-Section Calculation of Aircraft

Application of higher order basis functions on a quad mesh is the foundation of WIPL-D Pro EM solver efficiency. As a result, very large structures are simulated on inexpensive computers.
WIPL-D Pro models a large structure with about ten times less unknowns than MoM codes using triangular mesh and Rao-Wilton-Glisson basis functions. However, demands for simulation of ever larger structures (e.g. in car, aircraft or ship industries), are going beyond the capabilities of higher order MoM.
Hence, Multilevel Fast Multipole Method has been applied to the higher order MoM setup to extend these limits... read more

Modeling of Trees, Foliage, and Complex Sceneries

Scattering of EM waves from trees and foliage as well as the propagation of EM waves in the presence of forests plays an important role in many civil and military applications. For example, in the usage of Foliage Penetrating Radar (FOPEN) for detecting potential targets in the forest. If all the trees are modeled as dielectric rods and plates, the CPU time needed for rigorous MoM simulation is unacceptable for the real-life problems. However, the approximate but still accurate modeling is possible using the WIPL-D Pro EM solver. Computationally efficient modeling of trees and foliage can be done with metallic wires (for branches) and metallic plates (for leaves) with distributed loadings over them. read more