S-Gamma Corrections; Remote Commands - R&S NRP18S Series User Manual

®
R&S NRP18S-xx
8.8.4.4

S-Gamma Corrections

Using the complex reflection coefficient, you can determine the power P delivered by
the signal source with considerably greater accuracy.
The coefficient of the signal source Γ
●
[SENSe<Sensor>:]SGAMma:MAGNitude
●
[SENSe<Sensor>:]SGAMma:PHASe
The complex reflection coefficient Γ
correction, is prestored in the calibration data memory for many frequencies.
Figure 8-8: Correction of interactions between the power sensor and the signal source
If the gamma correction is performed in combination with an S-parameter correction
([SENSe<Sensor>:]CORRection:SPDevice:STATe
account:
●
Interaction of the signal source with the S-parameter device
●
Input of the power sensor, depending on the transmission, expressed by the term
s
If the S-parameter correction is enabled, the interaction between the complex reflection
coefficient Γ
always taken into account, regardless whether gamma correction is performed or not.
Figure 8-9: Correction of interactions between the power sensor, the signal source, and the S-param-

Remote commands:

[SENSe<Sensor>:]SGAMma:CORRection:STATe
[SENSe<Sensor>:]SGAMma:MAGNitude
[SENSe<Sensor>:]SGAMma:PHASe
User Manual 1178.3686.02 ─ 05
Sensor
s
12 21
of the power sensor and the reflection of port 2, expressed by s
sensor
Sensor Source
eter device
Configuring Basic Measurement Parameters
is defined by its magnitude and phase:
source
of the sensor, which is also required for the
sensor
Source
S
21
S S
11
22
S
12
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Remote Control Commands
NRP
3-Path Diode Power Sensor
MHz to GHz, 100 pW to 200 mW (−70 dBm to +23 dBm)
SMART SENSOR TECHNOLOGY
ON), the following is taken into
NRP
3-Path Diode Power Sensor
MHz to GHz, 100 pW to 200 mW (−70 dBm to +23 dBm)
SMART SENSOR TECHNOLOGY
, is
22
90