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michael_1104
Germany
2 Posts |
 Posted - Mar 20 2014 : 19:06:22
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Hi there,
how can I construct a cylindrical conductor in a FastHenry2 input file? What are the parameters for the geometry?
Thanks in advance,
Michael
Mk |
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Enrico
550 Posts |
Posted - Mar 20 2014 : 19:40:35
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First you should ask yourself if you really need a cylindrical conductor, or if for your geometry a rectangular approximation is enough. For instance, for long thin wires this might be appropriate.
If this is not the case, since there is not a cylinder primitive available in FastHenry, you can anyway approximate the round cross-section using a set of rectangular conductors (as if they were the filaments inside the segment as per FastHenry definition), up to the degree of approximation you deem necessary.
Best Regards,
Enrico
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michael_1104
Germany
2 Posts |
Posted - Mar 20 2014 : 20:03:04
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Thanks for the answer!
Do you know the discrepancy between a cylindrical and a rectangular conductor. Dimensions of the rectangular conductor are chosen as close as possible.
Is change of inductance by raising frequency due to skin effect considered in calculations?
Mk |
Edited by - michael_1104 on Mar 20 2014 20:38:10 |
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Enrico
550 Posts |
Posted - Mar 21 2014 : 09:19:56
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Suitability of the rectangular cross-section approximation depends on your application, I cannot give you a general answer.
For sure you can find an 'equivalent side' length of a square cross-section best approximating in some sense the inductance of the cylindrical cross-section conductor. You may need to experiment a bit, though. If you can, by any chance, read a bit of Italian, I could point you to a short digression on the topic.
Regarding your second question, yes of course skin effect is considered. How well you simulate it depends on the number of segments / filaments in which you discretized your model, you can refer to the FastHenry's User's guide for a discussion on the topic.
Best Regards,
Enrico
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basreflex
Spain
1 Posts |
Posted - Feb 24 2015 : 13:12:23
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enrico,
can you send me that document on equivalence of square and circular conductors?
grazie,
basreflex |
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Enrico
550 Posts |
Posted - Feb 26 2015 : 20:07:57
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Sure, just drop me an email (s upp or t <at> fastfieldsolvers.com, removing the spaces and using the proper @). I will maybe also upload it to the web site, it could be useful, even if it is only in Italian language.
Best Regards,
Enrico
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Enrico
550 Posts |
Posted - Feb 28 2015 : 16:01:18
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You can find the link under the literature page, or directly here:
fastfieldsolvers.com/Papers/caratterizzazione_elettromagnetica_di_packages_ultraminiaturizzati_applicati_a_memorie_Flash-EEPROM.pdf
The treatment is at page 61 and following pages.
Best Regards,
Enrioc
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Construction of a cylindrical conductor
