ANSYS HFSS Hybrid Finite Element - Integral Equation Method (FE-BI) Solver
Built upon HFSS domain decomposition and 3-D integral equation technology, this technique provides an ideal open truncation for the HFSS finite element solution using a direct integral equation-based calculation of an open boundary condition. FE-BI combines the best of both methods: the finite elements method's ability to handle complex geometries and the method of moments' direct calculation of the free-space Green's function for accurate radiating and scattering solutions. With this new technology antenna designers can realize increased, essentially ideal, accuracy for radiated far-field solutions to deliver more confidence in the electromagnetic solutions. Simulations involving antenna platform integration can be significantly reduced in size by allowing a conformal radiation boundary, including concave geometries, that reduces the overall volume of the finite element domain.