[brent_s]

When I was peeking at diycable the other day, Kevin had posted application white papers for both Shiva-X and Tempest-X. I would imagine those would be a good place to start working up a design. You can download WinISD Pro or Unibox and play around with Kevin's alignments to see what altering enclosure size, tuning frequency, diameter and/or number of ports, input power, etc. do to the overal performance of the design.

-Brent