CST Thermal Map of Power Dissipation in Eigenmode Solver and Scaling Factor

HP 2026-09-18

Greetings,

I have some challenges working with field post-processors inCST Studio Suite. I have a coaxial cavity resonator made out of copper, and the inner part is vacuum. When the Eigenmode solver finds the oscillating mode (TEM in my case) and makes the field map, these options are enabled for me,

Figure 1. Post-processing options in CST Studio.

When I click on Loss and Q, this window shows up,

Figure 2. Raw Q-Factor window before the solver starts.

I don't have my simulation results right now; please forgive me. The value for Loss/W is rather high becauseCST Studio Suite assumes 1 J of input power, and the electric field magnitude is also high, which is fine since I can normalise it. My concern is,

When I import the field map of the cavity to the PIC solver for particle simulation, I scale the field's magnitude to a specific value. Assume the factor is 0.000361. In that case, how should I scale the Power Dissipation (Loss/W value in Figure 2)? Should I multiply the Loss/W value by 0.000361 or 0.000361^2?

In addition, considering that I am still in the Eigenmode solver, how can I access the field map of power dissipation (i.e., the thermal loss map throughout my geometry)? I tried to click on the thermal losses option in Figure 1, but I cannot use it correctly, or it just does not give me a proper value, let alone a thermal map.

In fact, the value of thermal loss is not my concern; the thermal map is my intention.