Qucs touchstone import
If you're working with fixed-precision data you may have some numerical precision issues e.g. Data formatsīetween dB and magnitude, a logarithmic conversion makes sense.īetween magnitude/angle and real/imaginary forms, the rectangular-polar conversions apply: real = mag * cos(angle) and imag = mag * sin(angle) in one direction mag = sqrt(real*real + imag*imag) and angle = tanh2(imag, real) in the other.
If not, what is lost by choosing one kind of network parameter data over the other?Īll of these can be converted from one to another. ), can you convert mathematically to the other? Given one kind of network parameter data (S, Z. Relatedly, Touchstone files can specify what kind of network parameter data is contained in the file: If not, what is lost by choosing one data format over the other? Are these data formats interchangeable in the sense that one format can be changed mathematically to equate the other? DB for decibel-angle, where \$decibel = 20 × \log_(magnitude) \$.s2p) specify 3 possible network data formats: I'm trying to figure out what network parameter data would be "best" to use when generating a Touchstone file, or if the different data representations are equivalent in terms of the information they store in which case it doesn't really matter which one I choose: