Dear Richard and others:
You have helped me to understand what the issues are likely to be,
what they could be, and even a glimpse of what they might become.
I shall file in my list of
interesting-things-to-think-about-in-a-serious-way the issue of what
happens to the behavior a wave antenna having a "wire" on the ground
directly under the antenna wire. I do recall dealing with a similar
issue where I was verifying a modeling issue by testing the Zo of a very
long wire over a conducting plane. Might be a paper in there somewhere.
It reminds me of a fundamentals of mathematics class that I took
from Prof. Halmos. Perhaps his greatest genius was his ability
frequently to suggest interesting problems.
I shall exit stage right 'till I have "thunk" through the
interesting bits. Thank you for your assistance.