Changes

A short dipole provides another way of exciting a planar structure in EM.Picasso. A short dipole source acts like an infinitesimally small ideal current source. You can also use an incident plane wave to excite your planar structure in EM.Picasso. In particular, you need a plane wave source to compute the radar cross section of a planar structure. The direction of incidence is defined by the θ and φ angles of the unit propagation vector in the spherical coordinate system. The default values of the incidence angles are θ = 180° and φ = 0° corresponding to a normally incident plane wave propagating along the -Z direction with a +X-polarized E-vector. Huygens sources are virtual equivalent sources that capture the radiated electric and magnetic fields from another structure that was previously analyzed in another [[EM.Cube]] computational module.

=== Modeling Lumped Elements in EM.Picasso ===