how to convert z parameter to s parameter?

조회 수: 3 (최근 30일)
Venkatkumar M
Venkatkumar M . 2022년 12월 20일
댓글: Bora Eryilmaz . 2022년 12월 20일
I have two set of data.
One data has frequency, Z(ohm), theta.(R1Z.csv)
other data set has frequency, Z(db), theta (R1.txt)
I need to convert this two set of data from Z paramters to S parameter.
Could any one please help me to resolve the issue?

답변 (1개)

Bora Eryilmaz
Bora Eryilmaz 2022년 12월 20일
편집: Bora Eryilmaz 님. 2022년 12월 20일
Depending on which way you want to go:
% Ohm to dB
Z = 4.17;
ZdB = 20 * log10(Z)
ZdB = 12.4027
% dB to ohm
ZdB = 12.39;
Z = 10^(ZdB / 20)
Z = 4.1639
I am not sure what you mean by S parameter, though.
  댓글 수: 4
Bora Eryilmaz
Bora Eryilmaz 2022년 12월 20일
Looks like to have magnitudes and angles as your data:
I think the right transformation to a complex format would be the (r,theta) to (x,y) transformation:
ZdB = 1.23903195326879e+001; % In dB
Z = 10^(ZdB / 20)
Z = 4.1641
thetaDeg = -8.89777753697489e+001; % In degrees
thetaRad = thetaDeg * pi / 180 % In radians
thetaRad = -1.5530
z = Z * (cos(thetaRad) + 1i*sin(thetaRad))
z = 0.0743 - 4.1634i
s = z2s(z, 1)
s = 0.8838 - 0.4504i
I don't know much about z2s transformations, so please double check if the last line gives you what you want.

댓글을 달려면 로그인하십시오.


Help CenterFile Exchange에서 MATLAB Coder에 대해 자세히 알아보기

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by