Specifications

7
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安捷倫科技高頻元件量測研討會
Feb.23, 2006
Pulse-to-Pulse (Single Shot) Measurements
• Carrier remains fixed in frequency
• Measurement point in pulse remains fixed with respect to pulse trigger
(requires wideband detection technique)
• One data point for each successive pulse, no pulses skipped
• Display magnitude and/or phase versus time
VNA data display
Time domain
P
1
P
2
P
3
P
4
P
5
P
6
…
CW pulses
One data point for each successive pulse, no pulses skipped
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安捷倫科技高頻元件量測研討會
Feb.23, 2006
Pulsed S-parameter Measurement Modes
Wideband/synchronous acquisition
• Majority of pulse energy is contained within receiver bandwidth
• Incoming pulses and analyzer sampling are synchronous
(requires a pulse trigger, either internal (8510) or external (PNA)
• Pulse is “on” for duration of data acquisition
• No loss in dynamic range for small duty cycles (long PRI's),
but there is a lower limit to pulse width
Receiver BW
Pulse trigger
Time domain
Frequency domain