7 ANALYZER DATA OUTPUT
221
The Touchstone file contains comments, header, and trace data lines. Comments start
from «!» symbol. Header starts from «#» symbol.
The *.s1p Touchstone file for 1-port measurements:
! Comments
# Hz S FMT R Z0
F[0] {S11}’ {S11}”
F[1] {S11}’ {S11}”
. . .
F[N] {S11}’ {S11}”
The *.s2p Touchstone file for 2-port measurements:
! Comments
# Hz S FMT R Z0
F[0] {S11}’ {S11}” {S21}’ {S21}” {S12}’ {S12}” {S22}’ {S22}”
F[1] {S11}’ {S11}” {S21}’ {S21}” {S12}’ {S12}” {S22}’ {S22}”
. . .
F[N] {S11}’ {S11}” {S21}’ {S21}” {S12}’ {S12}” {S22}’ {S22}”
Hz – frequency measurement units (kHz, MHz, GHz)
FMT – data format:
§RI – real and imaginary parts,
§MA – linear magnitude and phase in degrees,
§DB – logarithmic magnitude in dB and phase in degrees.
Z0 – reference impedance value
F[n] – frequency at measurement point n
{…}’ – {real part (RI) | linear magnitude (MA) | logarithmic magnitude (DB)}
{…}” – {imaginary part (RI) | phase in degrees (MA) | phase in degrees (DB)}
7.4.1 Touchstone File Saving/Recalling
To select the saving type, use the following softkeys:
Save/Recall > Save Data To Touchstone File > Type > 1-
Port (s1p) | 2-Port (s2p)
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