Changes

In a typical electromagnetic simulation in [[EM.Cube]]'s [[Planar Module]], you define a planar structure that consists of a layered background structure with a number of finite-sized metal and slot traces and possibly embedded metal or dielectric objects interspersed among the substrate layers. The Your planar structure is then must be excited by some sort of a signal source that induces electric currents on metal parts and magnetic currents on slot traces. The method of moments (MoM) solver computes these unknown electric and magnetic currents by discretizing the finite-sized objects. The induced currents, in turn, produce their own electric and magnetic fields which coexist (are superposed) with the impressed electric and magnetic fields of the signal source. From a knowledge of the near fields, [[EM.Cube]] calculates the port characteristics of the planar structure, if any ports have been defined. From a knowledge of the far fields, [[EM.Cube]] calculates the radiation or scattering characteristics of the planar structure. You can excite a planar structure in a number of different ways. The excitation source you choose depends on the observables you seek in your project. [[Planar Module]] EM.Picasso provides the following source types for exciting planar structures: