这是一款意大利产出的电磁三维软件EM3DS (Electromagnetic 3D Solver)。
它是新奇、全功能、频率领域充足波浪仿真工具，有效地完成类似平面结构的化验。关于复杂的底层的专门平面结构，限定导电品的厚度和绝缘体的不连续性被视为防止危险的发生。因此，提供全面三维工具应用于EM3DS。
EM3DS使用 method-of-moments (MoM)技术，提供理想的2.5 与 3D仿真能力。使设计者可以对微系统电磁效果进行快速的、可定制的模拟。这个仿真工具可以作为CoventorWare的补充，用于RF，microware，及其他MEMS 器件。同时，EM3DS也可以作为一独立的产品来使用。相对于传统的有限元法，method-of-moments适合于高纵横比的结构（最大特征尺寸与最小特征尺寸比例很大）。method-of-moments能在纵横比是一重要考虑因素的地方，比如平板结构，进行更快的2.5 与 3D 仿真（比传统工具快50%-300%）。 鼠标轻轻一点，Coventor公司的EM3DS就可以由非常详尽的3D仿真转换到2.5D仿真。EM3DS非常适合处理整合了绝缘层、薄金属、以及绝缘夹杂物等等的复杂结构。 软件具有前后处理能力，可以进行linear circuit analysis, network parameters, Smith charts, S-parameters and SPICE extractions。能够输入的文件格式包括GDSII, AutoCAD DXF 和 BMP。
EM3DS (Electromagnetic 3D Solver) is a novel, full-featured, frequency-domain full-wave simulaton tool tailored to efficiently accomplish the analysis of quasi-planar structures – specifically planar structures over complex substrates, where the finite conductors’ thickness and the dielectric discontinuities are accounted for with no compromise – thus, rendering EM3DS a full 3D tool. 
Version 2008 is a new great step forward for EM3DS, now featuring:
· Magnetic walls]: top and bottom cover may be magnetic wall (namely tangential H vanishing); by the same token two of the 4 side walls may be magnetic
· Symmetry wizard: magnetic walls may be used to simulate half a symmetric structure, so saving large amount of time. When there are ports, by replacing -in a two-step procedure- the symmetry plane by means of a magnetic and then an electric wall, the response of the whole device may be obtained by suitably superimposing the two half-structures, each one featuring one half of the total number of ports. The symmetry wizard is a simple post-processor generating the correct superposition of the two simulations, recreating the full-port solution.
· Batch planner: it allows creating a queue of simulations/optimizations to be automatically ran and saved · [b]Differential ports[/b]: a new post-processor allows to renumber ports, connect ports together (and creation of response to even excitations), evaluate the differential (balanced, or odd) response of the circuit etc.
· Enhanced editor: now you can select multiple objects and change their properties all at once (resistivity, mesh, move by arrows etc). Each layer can be labeled (e.g. Gallium Arsenide copper etc) so that it becomes easier to identify the layer being edited. Ports can be selected by mouse, edited, deleted etc. Charts can be zoomed, panned etc.
·]Enhanced mesh: new options allow greater flexibility to control mesh, in particular for non-Manhattan objects
· License server as service: now license manager can either work as a program or as a standard Windows service, running in background.
· Parameters: layers may have parametric materials, even when no frequency dependence is required.
· Measurements]: the fraction of power lost in a component is now evaluated, and plotted in standard chart; charts can be zoomed/panned etc.