Question
How can we make a conversion from HP calibration kits to R&S calibration parameters in ZVR, ZVC, ZVCE, ZVRE, ZVRL?
Calibration kit conversion HP to R&S
Answer
HP uses the unit F/Hz for C0 to C3 and the unit ps for the delay.
ZVR however uses fF/GHz and mm for delay.
Loss is neglected.
Delay in ps (HP) will be converted to RS length as follows:
l = c/f or l = 3 * 10E8 * yy ps
C0(HP) = C0(RS)
C1(HP) * 0.001 = C1(RS)
C2(HP) * 0.001 = C2(RS)
C3(HP) * 0.001 = C3(RS)
Abbreviations:
F / Hz -----> Farad per Hertz
fF / GHz -----> Femto Farad per Giga Hertz
mm -----> Millimeter
ps -----> Picosecond
yy -----> Delay in ps
C0 ... C3 -----> Parameter
RS -----> Rohde & Schwarz
l -----> Length in mm
c -----> Speed of light (3 * 10E8 m/s)