Re: NEC-LIST: Hello from TN

Don

If your field generation devices have axisymmetry, you could use 2-D
finite
element quasi-static electromagnetic modelling programs to examine the
field.
There are many available but there is a freeware program called FEMM,
which is
described at:
http://femm.berlios.de/

If axisymmetry is not appropriate, you could use a 3-D FEM
electromagnetic
package but these may not meet your reasonable pricing criteria and
tend
to have significant learning curves.

Chris Holt

>>> "Don Belcher" >>>
We manufacture a line of magnetic excitation devices operating the 100
KHz
region, where the "antennas" are always some form of AC magnetic field
generator, always with dimensions to prevent their radiation. So we
are doing
near field inductive coupling. We would want to examine the AC
magnetic field
vector over 3-D space.

Does anyone have a suggestion of a reasonably-priced tool that would do
this?

Is there any chance we could do this with 4nec2 ?

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