At Sonnet, we've been developing 3D planar EM software since 1983, and our software has earned a solid reputation as the world's most accurate commercial planar EM analysis package for single and multi-layer planar circuits and antennas.
Sonnet Software Inc., founded by Dr. Rautio, is a private company, dedicated completely to the development of commercial EM software. We take great pride in providing quality technical support for our products--which we believe to be very important for high-end technical software products.
Sonnet's suites of high-frequency electromagnetic (EM) Software are
aimed at today's demanding design challenges involving predominantly
planar (3D planar) circuits and antennas. Predominantly planar circuits
include microstrip, stripline, coplanar waveguide, PCB (single and
multiple layers) and combinations with vias, vertical metal sheets
(z-directed strips), and any number of layers of metal traces embedded
in stratified dielectric material.
Sonnet Lite™ is a free feature-limited version of Sonnet's professional Sonnet Suites, which provides EM analysis to thousands of companies across the globe. Many major manufacturers of high-frequency components and boards depend on Sonnet to analyze their predominantly planar high-frequency designs from 1 MHz through several THz. You can download it right now - it's