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Coaxial cavity resonator
Posted 2026年3月13日 GMT+1 06:24 RF & Microwave Engineering, Studies & Solvers Version 6.2 1 Reply
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I am trying to model a coaxial RF resonator cavity. It consists of hollow outer and inner cylindrical conductors (copper) and are shorted on the two ends by a copper caps. I added impedence boundary conditions to include the losses. I have added Eigenfrequency study. The issue is, when I "compute", I am getting this error: Undefined variable.
Variable: comp1.emw.Qfactor
Global scope
Failed to evaluate expression.
Expression: comp1.emw.Qfactor
Feature: Eigenfrequencies (emw)
Can you please explain me what am I missing? Also, apart from this error, how should I proceed with this modeling?
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I can imagine a number of possibilities, most of which are very easy to fix. If you post your model to the forum, people will be able to examine it and will be better able to help you.
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