Changes

The method of moments uses an open-boundary formulation of [[Maxwell's Equations|Maxwell's equations]] which does not require a discretization of the entire computational domain, but only the finite-sized objects within it. As a result, EM.Libera's typical mesh size is typically much smaller that that of a finite-domain technique like [[EM.Tempo]]'s FDTD. In addition, EM.Libera's triangular surface mesh provides a more accurate representation of your physical structure than [[EM.Tempo]]'s staircase brick volume mesh, which often requires a fairly high mesh density to capture the geometric details of curved surfaces. These can be serious advantages when deciding on which solver to choose use for analyzing highly resonant structures. In that respect, EM.Libera and [[EM.Picasso]] are similar as both utilize MoM solvers and surface mesh generators. Whereas [[EM.Picasso]] is optimized for modeling multilayer planar structures, EM.Libera can handle arbitrarily complex 3D structure structures with high geometrical fidelity.

 In general, the surface EM.Libera's Wire MoM solver is can be used to simulate your physical structure, which can be made of metallic thin wires and dielectric objects of arbitrary shapes as well as composite wireframe structures that contain conjoined metal very fast and accurately. This is particularly useful for modeling wire-type antennas and arrays. One of the current limitations of EM.Libera, however, is its inability to mix wire structures with dielectric regionsobjects. If your project workspace physical structure contains at least one line or curve objectore more wire objects, EM.Libera then invokes its Wire MoM solver. In that case, only metallic structures can be modeled, and all the PEC surface and solid PEC CAD objects of the project workspace are meshed as wireframes. This solver can be used reduced to simulate wireframe models in order to perform a Wire MoM simulation. Also note that Surface MoM simulation of metallic composite structures containing conjoined metal and is particularly useful dielectric parts may take long computation times due to the slow convergence of the iterative linear solver for modeling wire-type antennas such types of numerical problems. Since EM.Libera uses a surface integral equation formulation of dielectric objects, it can only handle homogeneous dielectric regions. For structures that involve multiple interconnected dielectric and arraysmetal regions such as planar circuits, it is highly recommended that you use either [[EM.Tempo]] or [[EM.Picasso]] instead.