matplotlibによるVNA測定結果のプロット

pylab-plot.py

from pylab import *

f,arg,mag,ref = loadtxt('vnaplot.dat', delimiter=' ', unpack=True)

subplot(2,1,1)
plot(f, mag, label='mag')
plot(f, ref, label='ref')
xlabel('Frequency (Hz)')
ylabel('Amplitude (dB)')
grid(True)

subplot(2,1,2)
plot(f, arg, label='arg')
xlabel('Frequency (Hz)')
ylabel('Phase (radian)')
grid(True)

show()