Specifications

6
Page 11
安捷倫科技高頻元件量測研討會
Feb.23, 2006
VNA Pulsed-RF Measurements
Average Pulse
Magnitude and phase data
averaged over duration of pulse
Point-in-Pulse
Data acquired only during specified
gate width and position within pulse
VNA data display
Frequency domain
Frequency domain
Time domain
Pulse Profile
Data acquired at uniformly spaced
time positions across pulse
(requires a repetitive pulse stream)
Magnitude
Phase
data
point
Note: there may not be a one-to-one correlation between data points
and the actual number of pulses that occur during the measurement
CW
dB
deg
Swept
carrier
Page 12
安捷倫科技高頻元件量測研討會
Feb.23, 2006
Pulsed-RF Data Acquisition (Time Domain View)
t
carrier freq
Trace
point 1
Trace
point 2
Trace
point 3
Trace
point 4
Trace
point 5
Trace
point 6
. . .
Freq 1
Freq 2
Freq 3
Freq 4
Freq 5
Freq 6
. . .
Point-in-Pulse
Pulse Profile
t
gate delay
Trace
point 1
Trace
point 2
Trace
point 3
Trace
point 4
Trace
point 5
Trace
point 6
. . .
Delay 1
Delay 2
Delay 3
Delay 4
Delay 5
Delay 6
. . .
Note: the number of pulses
per data point varies with
PRF and IF bandwidth
Pulsed-RF
Gate