Remove current data and add new data to Smith chart
Plot the reflection coefficients of a dipole antenna.
Create a strip dipole antenna on the Y-Z plane. Calculate the complex S-parameters of the dipole antenna from 60 MHz to 90 MHz, with an interval of 150 kHz.
Plot S11 on a Smith chart for a reference impedance of 50 ohm.
d = dipole; freq = linspace(60e6,90e6,200); s_50 = sparameters(d,freq,50); hg = smithplot(s_50,[1,1]); hg.LegendLabels = 'S11 at 50#ohm';
Find S11 for a new impedance of 75 ohm. Replace the old S11 by the new S11 on the existing Smith chart.
s_75 = sparameters(d,freq,75); gamma = rfparam(s_75,1,1); replace(hg,gamma); hg.LegendLabels = 'S11 at 75#ohm';
plot— Smith plot
Smith chart handle, specified as a plot handle. If the handle of the Smith
chart is not retained during creation, use
data— Input data
Input data, specified as a complex vector or complex matrix.
For a matrix D, the columns of D are independent datasets. For N-by-D arrays, dimensions 2 and greater are independent datasets.
Complex Number Support: Yes
frequency— Frequency data
Frequency data, specified as a real vector.