Rohde & Schwarz R&S ZNB - Page 283

GUI Reference
R&S
®
ZNB/ZNBT
283User Manual 1173.9163.02 ─ 53
A PAE measurement involves the following steps:
1. Select the "Measurement Type", according to the properties of your DC power
source.
2. Enter the parameters for the selected measurement type.
3. Establish the test setup (including the RF connections of the DUT and the DC
INPUT connections) as shown in the circuit diagram.
4. Close the "Power Added Efficiency (PAE)" dialog and observe the result in the
measurement diagram.
Measurement Type
Selects the PAE measurement type, depending on the DC power source in use:
●
DC source providing a constant, known voltage at (possibly) variable current
●
DC source providing a constant, known current at (possibly) variable voltage
●
DC source with variable (unknown) current and power
The three measurement types involve different test setups, input parameters, and DC
voltage measurements. For an overview, see Table 5-26.
Note: The measurement types for "Constant Voltage Source" and "Voltage and Cur-
rent" require an additional non-zero, known precision resistor R.
Remote command:
[SENSe<Ch>:]PAE:TYPE
Formula
Shows the formula for the calculation of the DC supply power P
DC
, depending on the
selected Measurement Type. The parameters R, U
0
, and/or I
0
must be entered in
accordance with the properties with the DC power source and precision resistor in use.
Remote command:
[SENSe<Ch>:]PAE:PARameters:I
[SENSe<Ch>:]PAE:PARameters:R
[SENSe<Ch>:]PAE:PARameters:U
In/Out
Define the logical ports for the RF input and output signal, respectively.
Remote command:
CALCulate<Ch>:PARameter:MEASure 'TraceName', 'PAE21 | ...'
CALCulate<Ch>:PARameter:SDEFine 'TraceName', 'PAE21 | ...'
U
m
/U
m1
/U
m2
/
Select the DC INPUT connectors used to determine the DC supply power.
How many of them are required depends on the selected Measurement Type.
Remote command:
[SENSe<Ch>:]PAE:DCINput:MAIN
[SENSe<Ch>:]PAE:DCINput:SECondary
Meas Softtool