Product specifications

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The following examples show calibration with pulse modulation off.
Receiver leveling with wideband detection
This section explains the basic steps to setup a leveled pulsed-RF stimulus,
make calibrated swept-frequency point-in-pulse S-parameter, and absolute
power measurements using wideband detection technique.
Setting up wideband pulse measurements
First, set up the wideband pulse measurements with the following conditions. It
is essential to set up the pulsed stimulus and measurements before performing
calibrations so that the calibrations are kept valid in the measurements. In this
example, we use a 5 GHz amplifier as a sample DUT.
Frequency range: 2 GHz to 8 GHz
Source power: -10 dBm
Traces: Tr1 S11, Tr2 S21, Tr3 R1,1, Tr4 B,1
Setting up wideband pulse measurements
Sweep – Pulse Setup… then enter the following
Pulse Measurement: Standard Pulse
Pulse Timing: Pulse Width: 1 us
Pulse Period: 100 us
Measurement Timing: Rcvr A Delay: 300 ns
This modulates the stimulus with 1 us pulse width and 1% duty cycle. Rcvr A
delay is set to 300 ns to account for measurement delay (data processing delay,
refer to Figure 9 for detailed pulse system timing). Once the setup is completed,
the uncorrected input match, gain, input power, and output power are measured
using wideband detection in open loop leveling mode as shown in Figure 23.
Note that the pulse measurement application selects optimum IF bandwidth and
other settings from the specified pulse timing information, and sets the leveling
mode to open loop when the pulse modulation is turned on.
Figure 23. Uncorrected pulsed-RF S-parameters and absolute power measure-
ments using wideband detection