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Basic Operations for RF Devices Measurement
STEP 2. Setting Measurement Conditions
(4) Dc Bias (Current) Characteristics of Ls-Q (Option 001)
When Option 001 is installed in the E4991A, dc bias can be applied to the DUT. First
change the measurement conditions from the initial state of the E4991A as shown in Table
3-6.
NOTE
When measuring dc bias characteristics, you must set dc bias to ON after connecting
the DUT to the test fixture. For the setting procedure, refer to "Applying dc Bias
(Option 001)" on page 82.
Table 3-6
Setup example for this measurement
Presetting the E4991A
Preset the E4991A to the initial state by referring to the procedure described in "Presetting
the E4991A" on page 46.
Setting the Measurement Parameters and Display Formats
Perform setup in the same way as "Setting the Measurement Parameters and Display
Formats" on page 55.
58
Parameter setting
Trace 1
Measurement
parameters
Trace 2
Trace 1
Display formats
Trace 2
Measurement points
Sweep parameter
Sweep type
Source mode
Oscillator level
CW frequency
Sweep range (frequency)
Setup example
Ls
Q
Linear
Linear
201 points
dc bias (current)
Linear
Current
1 mA
100 MHz
100 μA to 50 mA
Initial state
|Z|
θz
Linear
Linear
201 points
Frequency
Linear
Voltage
100 mV (2 mA)
1 MHz
100 μA to 100 μA
Chapter 3
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