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AC/DC Module

Posted 21 mag 2010, 19:33 GMT-4 2 Replies

Piyush Bajaj
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Hi,

I am trying to model the electric field as a function of height over a PCB. However, in my simulations, the electric field strength is changing when I change the frequency. I am not sure if this should be the case. I am making one of the electrodes as a port and the other as ground. Can someone explain me why am I seeing the strength of the field change with frequency?

Thanks

2 Replies Last Post 24 mag 2010, 13:50 GMT-4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 22 mag 2010, 02:47 GMT-4
Hi

Are you in static or eigenfrequency or ..., pls provide slightly more info such asa version and module(s) used.

I agree that as first thoughts, in static, the field should not increase, if you are not enetering any other energy, but have you tried to check the energy balance ?

Have fun Comsoling
Ivar
Hi Are you in static or eigenfrequency or ..., pls provide slightly more info such asa version and module(s) used. I agree that as first thoughts, in static, the field should not increase, if you are not enetering any other energy, but have you tried to check the energy balance ? Have fun Comsoling Ivar
Piyush Bajaj
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Posted: 1 decade ago 24 mag 2010, 13:50 GMT-4
Hi Ivar,

Thanks for the reply.

I am using Quasi-Statics, Electric --> In-Plane electric currents.

Can I even input a frequency in the Statics, Electric mode? Also, what do you mean by checking the energy balance?

Thanks,

Piyush
Hi Ivar, Thanks for the reply. I am using Quasi-Statics, Electric --> In-Plane electric currents. Can I even input a frequency in the Statics, Electric mode? Also, what do you mean by checking the energy balance? Thanks, Piyush

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