Hybrid methods - Efficient EM CAD and optimization of microwave components and antennas

In computational electromagnetics, the principle of combining different methods to "hybrid methods" typically achieves efficiency capabilities, which go beyond the individual features of the involved methods. Based on an advanced multi-solver electromagnetic (EM) CAD technology, hybridizing mode-matching (MM) / finite-element (FE) / method-of-moment (MoM) / finite-element-boundary-integral (FE-BI) / physical theory of diffraction (PTD) and physical optics (PO) methods, the fast rigorous optimization of arbitrary, user-defined microwave structures, including large antennas and arrays together with feed-networks can be directly accomplished on the EM level. Typical calculation times for one optimization iteration are in the order of a few seconds (e.g. for waveguide, coax, microstrip, substrate integrated waveguide (SIW) components or body-of-revolution (BOR) type of antennas including feeds) up to a few hundreds of seconds (e.g. for large dual-offset reflector antennas or large slot-arrays including feeds) on standard quad-core PCs without additional hardware acceleration means. Complicated 3D structures are importable, can be suitably decomposed, parametrized and efficiently re-optimized.