SIwave package EMI and return-path analysis

Ansys, part of Synopsys · Electromagnetic and electrical simulation

Purpose: Package/PCB return-path and coupling concerns need consistent geometry and excitation when comparing EMI paths.
Technical approach: SIwave combines layout EM models with EMI rule checks. Near fields use defined excitations; induced-voltage analysis evaluates ports under plane-wave incidence.
Scope of use: IC packages and PCBs with representative materials, connections, ports and grounds.
Limitations and open questions: These evaluation considerations are compiled by BLNKK from public information. They are not supplier guarantees or a mandatory submission checklist.
Scope and limitations
Rule checks are not measured emissions; plane-wave susceptibility does not represent every aggressor. Results do not replace EMC certification. Confirm external-tool integration and licensing.
What to prepare
BLNKK suggests preparing layout, stackup, materials, operating frequencies, excitations/ports and return/ground geometry, with comparable measurements and operating states.
Confirm with the supplier
Confirm version/licenses, solver, excitation and observation definitions, mesh convergence and the method for correlating outputs with physical tests.
Public evidence: The product page and 2025 R2/2026 R1 help document these analyses and excitation, observation-surface and mesh settings.

Supporting references

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