Circuit Analysis and Simulation with Transmission-Line Emphasis

CASTLE is a new circuit code that is a hybrid between an MNA (modified nodal analysis) code such as SPICE and a transmission-line code (such as BERTHA).  It is designed for the Windows platform.

Download the public release of CASTLE2 here. Updated 23Nov11

Many new features:

Several times faster for large simulations

Improved ribbon-bar interface

Improved drawing features

And, much more!    

Download the first public release of CASTLE here. This zip file includes the executable file, help file, documentation, and some examples.

Screenshot: