A collection of M-Files capable of drawing a standard colored smith chart including all the labels and scales which can be found on a standard smith chart. In addition it allows other lines and circles to be drawn on the standard chart.
scDraw: Draws a blank smith chart
SOME OTHER USEFUL FUNCTIONS AVAILABLE AT MATLAB COMMAND PROMPT
scRay: Draws a ray emanating from the origin towards a given point on smith chart
scMove: Move along the transmission line on smith chart
scMatchCirc: Draws the match-circle on smith chart
scInv: Inverts a given impedance (admitance) by mirroring it about the origin
scConCirc: Draws concentric circles about the origin
scArc: Draws an arc (a circle) on the smith chart passing through a given point
Tested under MATLAB 6.5
I found a bug in the function scPOI, which leads to wrong plotting results for negative reactances (using scRay). If you try to display, for example, the point
scRay(0.25-j*0.5), the negative reactance shown in the smithchart will be be zero.
To fix the bug:
In scPOI, replace
to take care of negative numbers.
good smith chart design
Very usefull, Thanks a lot
I found it very useful,
With my compliments,
Telecom Engineer Omar Dahan
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It's great. It helps me a lot.
It's so useful. Thank u very much!
thanks very much!
Interesting tool, but it's a bit slow
Useful! But a little bit hard to operate.
How can you draw Smith Chart for a continuous system through s=z+1/z-1 transformation?
MATLAB can benefit from incorporating a toolbox like this one. Thank you for developing this tool.
Very impressive tools..
Thanks alot for your effort.
Some bugs are fixed and examples included.
Create scripts with code, output, and formatted text in a single executable document.