Re: animation program to show travelling wave

Danwei Xue (
Mon, 21 Apr 1997 09:56:52 -0700

Hi, Johnlin,

As I know Prof. Jiayuan Fang from the State University of New York at
Binghamton is leading a group in developing such a software which I
guess might be of very help to you.

Actually in a presentation here at Apple, he demonstrated a simulation
of K5 processor(as I remembered). The animations showed the wave
travelling both on a user designated wire and between selectd two
adjacent power/ground planes.

The program can run both on workstations and on PCs. And the PC version
I believe is for sale. You may check with him at

I hope this information can be a little helpful to you.

Good luck,

Apple Computer, Inc.

johnlin wrote:
> Hi,
> I study SI problems on PCB board level. I am interested in studying the
> behavior of wave travelling on a wire and reflected because of impedance
> mismatch.
> It is great helpful to have a visual aid,an animation program on PC, to
> show wave's travelling.
> Can anyone provide me a informatin/point for any animation programs to
> show
> wave travelling on a wire -- reflection due to impedance mismatch?
> Thanks in advance.
> /