Folks,
I'm attempting to model stacked Log Periodics, and have run
into what looks like a limitation in NEC 4 Windows.
Each LPDA has 8 elements. Each element has a source, with
the phase reversing by 180 degrees on alternating elements.
To stack, I duplicate the first LPDA, and change the Z height
dimension. When assigning sources, I discovered that they
are limited to 9. Must be some kind of stack overflow error,
as the program crashes.
Anyone care to offer an alternate approach to the problem?
N2EA
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