Sonnet Suite v16.52 3D Planar High-Frequency Electromagnetic Software 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 announces the availability of the Sonnet® Professional Suites™ Release 16 to customers. All Sonnet customers with current software maintenance agreements may download, install and license this powerful new release for the Sonnet Professional Suite, Level3 Gold, Level2 Silver or Level2 Basic Suite. The software is available by download from Sonnet's web site, and customers are invited to contact their Sonnet Technical Sales Representative for details on accessing the release download.