RE: NEC-LIST: How to model finite-size rectangular ground plane?

Hi, Prof. Chatterjee:

Thanks for your suggestion to my question in the NEC-LIST. I was
wondering if I should simply use the ideal current distribution
(i.e. assuming infinite ground plane) to find the radiated field plus
GTD treatment to get the addition diffracted field, or should I use
moment method to find the modified current distribution due to
finite-size ground plane. The former approach apparently made more
approximation in the first place (i.e. un-changed current
distrib. and high freq. approximation). But if the "finite-size"
ground plane is large enough (several wavelength), GTD should works
fine. Now in my case, the ground plane is only 1/6 ~ 1/8 wavelength.
So I was wondering if GTD still work? Also I have hard time to find
public domain NEC-BSC. The only one I could find is from Ohio State
Univ., http://esl.eng.ohio-state.edu/ . Could you give me a point to
any other NEC-BSC code? Thank you so much for you help

Best Regards,

Puck Ja
Received on Tue Apr 25 2000 - 05:07:42 EDT