EM.Picasso® is a versatile planar structure simulator for modeling and design of printed antennas, planar microwave circuits, and layered periodic structures. EM.Picasso's simulation engine is based on a 2.5-D full-wave Method of Moments (MoM) formulation that provides the ultimate modeling accuracy and computational speed for open-boundary multilayer structures. It can handle planar structures with arbitrary numbers of metal layouts, slot traces, vertical interconnects and lumped elements interspersed among different substrate layers. You can use EM.Picasso to model large finite-sized antenna arrays as well as infinite periodic structures such as frequency selective surfaces.
Â
Since its introduction in 2002, EM.Picasso has been successfully used by numerous users around the globe in industry, academia and government. The new EM.Picasso 2013 has been totally reconstructed based on our integrated EM.Cube software foundation. This integration has introduced far more powerful CAD utilities, greater geometrical variety, and a vast array of capabilities like parametric sweep, optimization, data visualization and post-processing computations. The new foundation also facilitates import and export of many popular CAD formats and provides a seamless interface with our other simulation tools.
Â
== A Planar Method Of Moments Primer ==
Â
The Method of Moments (MoM) is a rigorous, full-wave numerical technique for solving open boundary electromagnetic problems. Using this technique, you can analyze electromagnetic radiation, scattering and wave propagation problems with relatively short computation times and modest computing resources. The method of moments is an integral equation technique; it solves the integral form of Maxwellâs equations as opposed to their differential forms that are used in the finite element or finite difference time domain methods.
The currents in a planar MoM simulation are discretized as a collection of elementary currents with small finite spatial extents. These elementary currents are called basis functions and obviously have a vectorial nature. The total currents (solution of the problem) are summations of these elementary currents. The basis functions are well defined and easy to calculate; however, their amplitudes are initially unknown in a MoM problem. Through the planar MoM solution, you find these unknown amplitudes. Once the total currents are known, you can calculate the fields everywhere in the structure.
Â
== A Planar Method Of Moments Primer ==
=== Multilayer Greenâs Functions ===