# how to convert z parameter to s parameter?

14 ビュー (過去 30 日間)
Venkatkumar M 2022 年 12 月 20 日
コメント済み: Bora Eryilmaz 2022 年 12 月 20 日
Hi,
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.

サインインしてコメントする。

### 回答 (1 件)

Bora Eryilmaz 2022 年 12 月 20 日

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.
##### 4 件のコメント2 件の古いコメントを表示2 件の古いコメントを非表示
Venkatkumar M 2022 年 12 月 20 日
Okay is there a way to convert available data to to complex form?
Bora Eryilmaz 2022 年 12 月 20 日
Looks like to have magnitudes and angles as your data:
(1.23903195326879e+001dB,-8.89777753697489e+001°)
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
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.

サインインしてコメントする。

### カテゴリ

Help Center および File ExchangeSimulink Coder についてさらに検索

R2022a

### Community Treasure Hunt

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

Start Hunting!

Translated by