ADEtreb
Newbie
Hello,
I am using HFSS to simulate a device and I would like to compute the total energy in and around the device, I have nevertheless several questions some related to HFSS, and particularly, to boundary conditions, another is more general and concerns electric energy. I hope the community can help:
1- In electrostatics, the total electric energy is obtained by calculating We = 1/2 \int_Vol E dot D dVol inside the air box, If I understand well, the radiation box does not contain the energy, then how can I compute the electric energy outside the radiation box using HFSS?
2- At high frequency, if I understand well, a too small radiation box will cause reflections and therefore increase the energy inside and decrease the radiated power, but at low frequencies, what does the use of a radiation box implies in terms of energy?
3- How does the total electric energy relate to capacitance? Once again, at low frequency, We is equal to 1/2 C U^2, as frequency increases and in harmonic regime, is We still equal to 1/2 C U^2?
Thanks for your inputs,
I am using HFSS to simulate a device and I would like to compute the total energy in and around the device, I have nevertheless several questions some related to HFSS, and particularly, to boundary conditions, another is more general and concerns electric energy. I hope the community can help:
1- In electrostatics, the total electric energy is obtained by calculating We = 1/2 \int_Vol E dot D dVol inside the air box, If I understand well, the radiation box does not contain the energy, then how can I compute the electric energy outside the radiation box using HFSS?
2- At high frequency, if I understand well, a too small radiation box will cause reflections and therefore increase the energy inside and decrease the radiated power, but at low frequencies, what does the use of a radiation box implies in terms of energy?
3- How does the total electric energy relate to capacitance? Once again, at low frequency, We is equal to 1/2 C U^2, as frequency increases and in harmonic regime, is We still equal to 1/2 C U^2?
Thanks for your inputs,