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Ansoft’s HFSS version 9 expanded the electromagnetic simulator into a broader design workflow: it added radiation-pattern modeling for three-dimensional metal structures, a project-tree-based desktop environment, automated optimization tools, and links to EDA, mechanical-CAD, and circuit-design applications. EE Times reported that the Windows version was shipping in July 2003; the release and its pricing details are historical, not a guide to current HFSS products.
What HFSS version 9 added
HFSS—High Frequency Structure Simulator—was used to analyze RF and microwave structures. Version 9’s notable addition was the ability to model radiation patterns from three-dimensional metal structures, extending its work beyond component behavior to how those structures radiate electromagnetic energy.
The release was aimed at designs such as antennas and antenna arrays, IC packages, lead frames, connector pins, and other RF or microwave structures. Its interface also brought more of the 3-D electromagnetic workflow into one desktop environment.
How HFSS Desktop changed the workflow
HFSS Desktop introduced a graphical environment organized around a project tree. Engineers could manage concurrent designs, define parameterized geometry, enter dimensions, shapes, and electrical characteristics, then launch analysis operations from the design tree. Menus, windows, toolbars, and dialogs could be configured to suit a user’s workflow.
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The graphics tools supported partitioning and enlarging 3-D structures, as well as highlighting mesh sections with translucency and animation. Users could also visualize electromagnetic radiation paths and patterns, making geometry, mesh, and results easier to inspect within the same environment.
Optimization and design exploration
Version 9 included Optimetrics to automate optimization and parametric sweeps. Instead of evaluating only one set of dimensions, engineers could examine how changes to selected design parameters affected results. The reported workflows also included sensitivity and statistical analyses.
Implicit parameterization was identified as useful for design-for-manufacturing work: engineers could explore parameter variation and assess its effects as part of the design process. The article describes these capabilities, but does not specify particular algorithms, supported statistical distributions, or performance benchmarks.
CAD and circuit-design connections
Integration was a central part of the release. HFSS retained links to Cadence Virtuoso and Mentor Graphics BoardStation. AnsoftLinks connected electrical and mechanical design flows involving Cadence, Mentor Graphics, Synopsys, and Zuken.
For circuit simulation, broadband circuit models supported HSpice, Spectre RF, PSpice, and Ansoft Maxwell Spice. Parametric models could also be used in Ansoft Designer and other circuit and system tools. These connections positioned HFSS within a larger design chain rather than as an isolated 3-D solver.
National Instruments integration was still in progress
EE Times reported that Ansoft was working on a relationship with National Instruments, not that a finished integration had shipped. The proposed concept was to use National Instruments test data to improve Ansoft parameterization and modeling, while virtual instruments could contribute to simulation work in Ansoft Designer. Treat this as a development effort described in 2003, not a confirmed version 9 feature.
Price and operating-system availability in 2003
EE Times reported that HFSS version 9 for Windows was shipping on July 7, 2003, with prices starting at $40,000. The article said Solaris and HP-UX versions were expected that summer; it does not establish when or whether those editions subsequently shipped. These are historical details and should not be read as current prices or platform support. EE Times, “Ansoft carves another niche for HFSS tool,” July 7, 2003.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why the release mattered
Version 9’s significance was not just a new radiation-pattern capability. The project-tree interface, parameter-driven geometry, Optimetrics automation, and links to established EDA and circuit tools connected electromagnetic analysis more closely to everyday design iteration. For the engineers targeted by the release, that meant one workflow could cover structure definition, simulation, parameter exploration, and exchange with neighboring design tools.
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