TNT is the graphical front end supporting 2-D electromagnetic field solvers developed at the Mayo Special Purpose Processor Development Group (Mayo SPPDG). These field solvers can compute per-unit-length electrical characteristics from two dimensional descriptions of transmission lines.
Mayo SPPDG has been implementing and using a variety of electromagnetic modeling tools since the mid-1980s in support of its primary research mission: developing next generation electronics technology for high speed signal processor applications. The Mayo-developed applications have been known as the "MMTL" applications, for Multilayer Multiconductor Transmission Line analysis tools. For more information about Mayo SPPDG, visit http://www.mayo.edu/sppdg/
TNT is primarily a Tcl/Tk script application, and requires Tcl, Tk, Incr Tcl, IWidgets, and BWidget packages. These packages are freely available, and the source code can be downloaded from http://tcl.sourceforge.net/, http://incrtcl.sourceforge.net/, and http://tcllib.sourceforge.net/. Or you can download and install a free binary distribution of ActiveTcl which includes all these (and many other) packages from http://www.activestate.com/tcl/.
TNT and MMTL field solver programs are available on the web. See:
Copyright (C) Mayo Foundation 2002-2004.
TNT is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with TNT; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA