data:twoport-YtoS d {R0 50}
d | data object with 2-port parameter columns: RE(y11) IM(y11) RE(y12) IM(y12) RE(y21) IM(y21) RE(y22) IM(y22) |
R0 | Normal impedance. (default is 50 ohms). |
The following data columns are formed:
RE(s11) IM(s11) RE(s12) IM(s12) RE(s21) IM(s21) RE(s22) IM(s22),
where
yo = 1/R0 x = y11*y22-y12*y21 den = -1/[(yo+y11)*(yo+y22)-y12*y21] = -1/[x+yo*(yo+y11+y22)] s11 = -[(yo-y11)*(yo+y22)+y12*y21]*den = [x-yo*(yo-y11+y22)]*den s22 = -[(yo+y11)*(yo-y22)+y12*y21]*den = [x-yo*(yo+y11-y22)]*den s12 = [2*y12*yo]*den s21 = [2*y21*yo]*den |