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Hi,
I have a rather silly question.
My lab is using a Tektronix AWG7102 and I can control the waveform's 2.8 GHz amplitude but I do not know the output power.
The signal is mixed with a LO (14 GHz, 17 dBm) and I need to confirm my power measurements at the mixer's output.
I have checked the...
Good day,
I wish to connect my spectrum analyzer with a TWT and I want to prevent any damage from DC input.
The TWT output is a waveguide output. I am using a waveguide to SMA adapter.
Hence, theoretically, the RF output will be referenced to the ground level of the TWT.
However, I am worried...
I am using a diode sensor but at the moment, without the TWT.
Since I am not familiar with microwave techniques, would be wise to be a bit prudent first.
I have confirmed that for powers meters, any unwanted signals are averaged into the measurement.
Looks like I would need to rely on the SA...
Thank you for your quick reply.
According to the specification, for the power meter, the chart is linear from -70 to -30 dBm.
As for the sensor's linearity, it is <1.8% with a rectangular probability distribution.
And you are right, as I lowered the duty cycle, i saw changes in the results...
Hello,
After reading the manual on using the SA and power meters, I finally carried out my experiments..
I have the results and I would like to ask for some opinions please.
Firstly, my pulses are up-converted using a mixer with LO of 14 GHz (CW) and 2.8 GHz (pulses).
Using the SA, i obtained...
understood. that is certainly pretty straight forward..
i see.. so I can time the power measurements to match my pulses. I'll check if I can do that on my power meter.
Thanks again biff44 and enjunear.
thank you for your reply.
yes, i wish to measure the power during the rise time.
and sorry, what do you mean by many "events" of "dwells"?
we have a CW power meter but the same guy told me that it cant measure pulse signals.
Correcting it with the duty cycle sounds promising.
I will read up...
Good day,
I am generating 16 GHz pulses using a mixer connected to a AWG and LO and I measured the power using a spectrum analyzer in time domain.
I encountered several comments from someone with more experience but I could not get further explanation from him.
I am a new in this field and I...
Good day,
I have been simulating stripline probes using CST Microwave Studio for quite sometime now.
The results that I normally obtained are on the right side of the figure.
But recently, I recreated the whole thing to try out a few features (new to me) and I accidentally got a strange H-field...
Hi, thanks for the reply and good point.
I just thought it would be able to yield a better approximation (with refined grids compared to the coarser grids).
In that case, parameter sweep wouldnt be very accurate i presume?
Any way to work around that instead of changing the parameter manually...
Hi,
I am a newbie here so please pardon my mistakes.
I am using CST Microwave transient solver and also the adaptive mesh refinement.
After 6 runs, it ends. That is all good.
But when i want to run parameter sweep for one of the structure dimension, the mesh reverts back to the coarse...
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