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Pulse droop calculation

Question asked by nsm on Mar 1, 2012
Latest reply on Mar 26, 2012 by lynchdavidb

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hi,

I am using the N1911A power meter and the N1921A power sensor for measurement of peak power. I would like to know the procedure for calculating the pulse droop.

Rgds

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lynchdavidb Mar 12, 2012 3:48 PM
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On the N1911A power meter put the trace display of the pulse you want to measure onto the display. Then place Marker 1 at the beginning of the top of the pulse. This marker should go just after any overshoot on the rising edge of the pulse. Typically this marker would be about 10% of the time after the pulse's rising edge. Note the Marker 1's time and magnitude.

Then place Market 2 just before the falling edge of the pulse. Typically this would be about 10% of the time before the falling edge of the pulse. Note this marker's time and magnitude.

The difference in time between the two markers is the droop time. The difference between the two marker magnitudes is the actual droop value.
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- steves @ lynchdavidb on Mar 23, 2012 1:56 PM
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  im testing auto-droop feature on 8990B - its sort of neat. one doc mentions new firmware coming - when is this release planned and do u have any info on what features will be added/addressed? can i get install it myself? thanks -ss
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  - lynchdavidb @ steves on Mar 26, 2012 9:22 AM
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    The next firmware revision will be coming out at the end of the summer 2012. You will be able to update the firmware yourself. It does not need to be send to Agilent for this update. The update will include enhanced markers, faster measurement speeds, and improvements to the triggering.
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Pulse droop calculation

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