Smith Chart
I wrote a small code in Matlab for Smith Chart during my BS. you can download it by clicking here.
scbyfahad (Smith Chart By Fahad) takes Characteristic impedance, Load impedance as an input and in output it gives magnitude, theta , SWR and rloss. It plot the VSWR circle as figure 1.
Fore more details write ‘help scbyfahad’ in matlab command windw after putting the downloaded file in matlab directory. If any further help needed please contact me on my email fahadsohrab@sabanciuniv.edu
“The Smith chart, invented by Phillip H. Smith (1905–1987) is a graphical aid for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission lines and matching circuits. Use of the Smith chart utility has grown steadily over the years and it is still widely used today, not only as a problem solving aid, but as a graphical demonstrator of how many RF parameters behave at one or more frequencies, an alternative to using tabular information.”