Emerson R&S SGT100A User Manual page 168

®
R&S SGT100A
Table 6-4: Definition of the variable x depending on the envelope voltage adaptation mode
"Envelope Voltage Adaptation"
Auto Power
Auto Normalized
Manual
The mathematical expressions and further information on the shaping functions are
provided in the corresponding sections.
See also
on page 171.
● About the linear
● About the detroughing
● About the polynomial
● About the shaping
● Shaping function in raw data
● Converting shaping functions and understanding the displayed
About the linear functions
The linear shaping can be used for less demanding applications, simple analysis, and
the first interactions by designing the optimum envelope shape. Because the shaping
gain of the linear function is 0 dB, in "Envelope Voltage Adaptation > Manual" mode
this function is suitable for determining the "Pre-/Post-Gain" values (see
culating the current V
Provided are two linear functions, where each of them depends on the "Envelope Volt-
age Adaptation" mode:
●
Linear (Voltage)
–
–
●
Linear (Power)
–
–
Where:
●
The variable x depends on the "Envelope Voltage Adaptation" mode, see
Table
●
The constant b is calculated as:
b = (V
See also
on page 171.
User Manual 1176.8674.02 ─ 12
"Converting shaping functions and understanding the displayed values"
functions......................................................................................168
function............................................................................. 169
function............................................................................... 169
table........................................................................................ 170
in "Manual" mode"
CC
f(x) = x in "Auto Normalized/Manual"
f(x) = b*x + V in "Auto Power"
cc,min
2
f(x) = x in "Auto Normalized/Manual"
f(x) = b*x 2 + V in "Auto Power"
cc,min
6-4.
- V )/(V
cc,max cc,min in,max
"Converting shaping functions and understanding the displayed values"
Generation of envelope tracking signals
x
x = V - V
in in, min
x ≥ 0
x = V /V
in in,max
x = V /V
Env Env,max
format......................................................................171
on page 175).
- V )
in,min
Signal generator settings
values............... 171
Example"Cal-
168