Clarity – Tip of the week: Setting Up Modal Waveport in Clarity 3D Workbench

A wave port represents the excitation from a semi-infinite waveguiding structure whose cross-section is the same as the wave port. For each wave port, the solver extracts the mesh in the 2D-port plane and performs an eigenmode analysis on the structures in the that plane the solution frequency.

The solution is more accurate than a lumped port because the excitation field pattern is calculated from the cross-section. As a result, it is closer to real excitation and does not introduce any additional parasitic effects.

The following figure shows a typical waveguide with a rectangular cross-section.

To create modal waveport go to Excitations – Create Excitations – Mixed type wave Port from the Solver menu, then specify the number of modes and define the sampling vectors.

To see the detailed steps, click here and watch the video.

Have you used Modal Waveport in your extractions? Let us know your experience.

Team SimTech

Cadence Design Systems