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uW_S2P_DELTA

Calculate the determinant of an S2P file.

Calling Sequence

D=uW_S2P_DELTA(S)

Parameters

S

tlist containing the S parameters.

D

vector. Value of the determinant according to the frequency list of the S2P object.

Description

This function calculates the determinant of a S2P objet S as follow : D=S.S11*S.S22-S.S12*S.S21. The condition of unconditional stability is achieved when K greater than 1 and abs(D) lower than 1 with : K=uW_S2P_K(S) and D=uW_S2P_DELTA(S).

Examples

// Get the T11 parameter of a measured device
// 

filename=uigetfile("*.s2p");
S=uW_S2P_read(filename);
plot2d(S.frequency./(10^9),abs(uW_S2P_DELTA(S)));

See Also

Authors

Tibault Reveyrand

www.reveyrand.fr


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