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AC/DC module

Posted Nov 18, 2010, 6:25 a.m. EST 3 Replies

Fovad Ali Khan
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Is AC/DC module also work in high frequecy (upto 1G Hz).
3 Replies Last Post Nov 19, 2010, 12:28 p.m. EST
Edgar Kaiser
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Posted: 1 decade ago Nov 18, 2010, 12:17 p.m. EST
Hi,

AC/DC works as long as the structures you model are much smaller than the wavelength. You should be save up to wavelength/100. So for 1GHz in air we are talking about 3 mm.

Regards
Edgar
Hi, AC/DC works as long as the structures you model are much smaller than the wavelength. You should be save up to wavelength/100. So for 1GHz in air we are talking about 3 mm. Regards Edgar
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Nov 18, 2010, 4:24 p.m. EST
Hi

I would even say RF is better for such frequencies,
but its true that if we respect the size ratio, perhaps proposing that the true object should be even a few times smaller to have some free room around, then perhaps it's still OK

--
Good luck
Ivar
Hi I would even say RF is better for such frequencies, but its true that if we respect the size ratio, perhaps proposing that the true object should be even a few times smaller to have some free room around, then perhaps it's still OK -- Good luck Ivar
Edgar Kaiser
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Posted: 1 decade ago Nov 19, 2010, 12:28 p.m. EST
Yes,

the whole model (including the free space around the structure) needs to be much smaller than the applied wavelength. There are probably hardly any useful applications for something like that in the GHz range. So the RF module will be required to do something useful.

Best regards
Edgar
Yes, the whole model (including the free space around the structure) needs to be much smaller than the applied wavelength. There are probably hardly any useful applications for something like that in the GHz range. So the RF module will be required to do something useful. Best regards Edgar

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