circuit design with EM field simulation

Hi, I wish to know if there any EM field simulation software for electronic circuits. I appreciate your help to know any, preferably the one giving free demo versions. I have an electronic circuit. i have the details of the components used and i wish to see the EM interactions among the comoponents. Thanks. Kristo

EM Radiation depends on more than just components - it depends on PCB layout and other enviromental factors.

Do a google search on supressing RF radiation or Better EMC design.... There's lots of free info.... but you have to search hard... there are good books also.

Joe

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Mark

What's the application, and the frequency range? EM simulation is sufficiently difficult to set up that it's only done when absolutely necessary.

For real microwave apps, there's Sonnet Lite and Puff, both free, but neither will do an EM analysis of a typical parts-loaded circuit board.

John

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what is "puff"?

Mark

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What is "google"?

John

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I have a copy of "Puff" around here somewhere ;-)

Though I may have tossed it... IIRC it was on a 5-1/4" floppy :-(

Is it available for "modern" operating systems?

...Jim Thompson

Jim Thomps>I have a copy of "Puff" around here somewhere ;-)

TTBOMK it's DOS-only. In the 21st Century, however, that shouldn't be a hinderance:

VirtualBox will run with a Windoze host.

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Ask google!

John

Thanks. my application is simple. I have few passive components and and amplifier on a PCB board. I would like to see how the currents flowing there sets up the field and influence each other. Passive components are inductor, capacitor and an op amp. Frequency range of interest is

Kristo

Magnetic interactions are unlikely in a situation like this, with just one inductor. I'd not bother.

John

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I think that this can lead you to it:

Along with a host of other EM and related stuff.