9-14
Understanding the CITIfile Data Format
Useful Calculations
Expressing CITIfile Data in Other Data Formats
CITIfile data is represented in real and imaginary pairs. Equations can be used to express
this information in logarithmic magnitude, phase, polar, and Smith chart formats. Refer to
the following table for these equations.
Desired Format
Mathematical Equation
a
a.
Re = real. Im = imaginary.
Microsoft Excel Command
b
b.
The references to ReCell 1, ImCell 1, and Z Cell 1 refer to the real and imaginary data pair numeric values
that have been entered into specific cells in the Microsoft Excel spread sheet.
Log Magnitude
20*Log10((Re2 + Im2)) 1/2
=20*LOG10(SQRT((SUMSQ(ReCell 1,Im Cell 1)))) (dB)
Phase
tan-1(Im/Re) or arctan (Im/Re)
ATAN2(ReCell 1, ImCell 1)*180/PI() (Degree)
Polar
Magnitude = ((Re2 + Im2)) 1/2
Magnitude = (SQRT((SUMSQ(ReCell 1,Im Cell 1)))
Phase = tan-1(Im/Re) or
Phase = ATAN2(ReCell 1, ImCell 1)*180/PI()
arctan (Im/Re)
Smith Chart
Resistance =
Resistance =
(Marker)
(1 - Re2-Im2) /
((1-POWER(ReCell 1,2)-POWER(ImCell 1,2)) /
((1 -Re) 2+Im2)) * Z0
(POWER((1- ReCell 1),2)+POWER(ImCell 1,2))) * Z Cell 1
Reactance =
Reactance =
(2*Im) /
(2*ImCell 1) /
((1 - Re) 2+Im2)) * Z0
(POWER((1- ReCell 1),2)+POWER(ImCell 1,2)))*Z Cell 1
Содержание 8719ES
Страница 6: ...vi ...
Страница 10: ...Contents x Contents ...
Страница 11: ...1 1 1 HP 8719 20 22ES Specifications and Characteristics ...
Страница 60: ...1 50 HP 8719 20 22ES Specifications and Characteristics Instrument Specifications ...
Страница 61: ...2 1 2 HP 8719 20 22ET Specifications and Characteristics ...
Страница 98: ...2 38 HP 8719 20 22ET Specifications and Characteristics Instrument Specifications ...
Страница 99: ...3 1 3 Front Rear Panel ...
Страница 111: ...4 1 4 Menu Maps ...
Страница 113: ...4 3 Menu Maps Menu Maps Figure 4 2 Menu Map for Copy ...
Страница 114: ...4 4 Menu Maps Menu Maps Figure 4 3 Menu Map for Display ...
Страница 115: ...4 5 Menu Maps Menu Maps Figure 4 4 Menu Map for Format Figure 4 5 Menu Map for Local ...
Страница 116: ...4 6 Menu Maps Menu Maps Figure 4 6 Menu Map for Marker Marker Fctn and Marker Search ...
Страница 118: ...4 8 Menu Maps Menu Maps Figure 4 9 Menu Map for Power and Sweep Setup ET only ...
Страница 119: ...4 9 Menu Maps Menu Maps Figure 4 10 Menu Map for Power and Sweep Setup ES only ...
Страница 120: ...4 10 Menu Maps Menu Maps Figure 4 11 Menu Map for Preset ...
Страница 121: ...4 11 Menu Maps Menu Maps Figure 4 12 Menu Map for Save Recall ...
Страница 122: ...4 12 Menu Maps Menu Maps Figure 4 13 Menu Map for Scale Ref ...
Страница 128: ...5 1 5 Hardkey Softkey Reference ...
Страница 194: ...6 1 6 Error Messages ...
Страница 222: ...7 1 7 Options and Accessories ...
Страница 234: ...8 1 8 Preset State and Memory Allocation ...
Страница 253: ...8 20 Preset State and Memory Allocation Memory Allocation ...
Страница 254: ...9 1 9 Understanding the CITIfile Data Format ...
Страница 269: ...9 16 Understanding the CITIfile Data Format Useful Calculations ...
Страница 270: ...10 1 10 Determining System Measurement Uncertainties ...
Страница 281: ...10 12 Determining System Measurement Uncertainties Measurement Uncertainty Equations ...