Hello, I've been browsing the forum for a while and it has been very helpful in the past but I cannot seem to find an answer to the problem I'm currently having. Inside of my microwave cavity I have two conducting surfaces that create a capacitance because of an electric field. In previous versions of my cavity without the conductive surfaces, I was able to find eigenmodes that I could confirm as accurate. However, once I added the two conducting surfaces I get the following error:
Maximum number of Arnoldi iterations reached. Increase the dimension of the Krylov subspace. Not all eigenfrequencies returned.
I am not entirely sure what any of that means because I am pretty new to using COMSOL. Also, saying "not all eigenfrequencies returned" to me means that there were some that were returned. Is that correct to assume? If so, which ones and are they accurate?
Any help I can get to understand this error would be greatly appreciated.