Aug 1, 2013 #1 Y yasine79 Member level 2 Joined Nov 10, 2009 Messages 49 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Location germany Activity points 1,602 Hi aLL, i made a transmission mesurement (S21) of a dielectric between two Antennas. the length of the frequency sweep is 25 . my programm is this: sweep_length=25; load ATT load phase S21=ATT.*exp(1i.*phase); C=3e8; stepf=30e6; dt=1/(stepf*(sweep_length-1)); t=dt*(0:sweep_length-1); T_domain=ifft(S21,25); magnitude=20*log10(abs((T_domain))); figure plot(t,magnitude) does the plot make sense? i could not interpret it. maybe you have some advices thank you Attachments ATT_phase.zip 955 bytes · Views: 86
Hi aLL, i made a transmission mesurement (S21) of a dielectric between two Antennas. the length of the frequency sweep is 25 . my programm is this: sweep_length=25; load ATT load phase S21=ATT.*exp(1i.*phase); C=3e8; stepf=30e6; dt=1/(stepf*(sweep_length-1)); t=dt*(0:sweep_length-1); T_domain=ifft(S21,25); magnitude=20*log10(abs((T_domain))); figure plot(t,magnitude) does the plot make sense? i could not interpret it. maybe you have some advices thank you