NEC-LIST:Using Current Sources

Dear All,

I was wondering if any of you out there would expect differences from
using current sources in NEC instead of the conventional voltage
sources. Theoretically there should be no difference since the voltage
source with zero impedance in series with an element is exactly the same
as a current source in parallel with an element with infinite impedance.

I've been simulating an 8 element dipole array with two rows of 4 elements
like the plan view below (so the dipoles are coming out of the
email!). The bottom row of elements are in quadrature with the top row.

X X X X (This row in zero phase)
X X X X (This row 90 degree phase)

Now, if this simulation is carried out with current sources, we get a
contradiction with the voltage sources and there is no real valid reason
why we should. The measurements support the voltage source simulations as
I'd expect them to. Does anyone else have any light on this? Or are the
current sources actually feeding the elements as they should be? Thanks,
Tim.

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