Usually this is not intended and these modes can be stopped from propagating by lowering the upper frequency limit. Depending on the dimension of the waveguide port and the upper limit of the global frequency range, there might also occur higher order propagating modes in addition. In case of a multi-conductor port usually TEM or QTEM modes are of interest. Consider to increase the number of modes or decrease the upper frequency limit.

This possibly leads to an inaccurate energy balance. Some higher order propagating modes at port 'xxx' are not considered in time domain calculation. Please check whether the background material is defined as PEC or the port is located inside a metal object. Maybe the background material is defined as PEC? All degrees of freedom inside the port plane lie inside metal material, so that no mode pattern can be calculated.

Sources and Boundary Condition Problem Handling This page contains a list of the most important warning and error messages in the context of source, boundary and material modeling together with a detailed explanation of the meaning and proposal for handling and resolution.Ĭontents Excitation sources Waveguide ports Multipin ports Floquet ports Source configuration Materials Boundaries Lumped Network ElementsĮxcitation sources Waveguide ports Port number 'xxx' is completely filled with metal.

Sources and Boundary Condition Problem Handlingįile:///C:/Program Files/CST STUDIO SUITE 2012/Online Help/mergedP.

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