Issamy
Newbie level 2
Hello everybody,
First post on this forum. I want to measure the S-parameters of a DUT. My problem is that to avoid compression of the DUT, I have to set the source powers of the VNA at levels below -60dBm. By doing so, internal attenuators of VNA are commutated, making the calibration impossible...
If I make the calibration at decent source power level (0dBm) and then decrease the source power to level below -60dBm, then the S paramater displayed are completely inconsistent.
Any idea to fix my problem?
Thanks
Issam
First post on this forum. I want to measure the S-parameters of a DUT. My problem is that to avoid compression of the DUT, I have to set the source powers of the VNA at levels below -60dBm. By doing so, internal attenuators of VNA are commutated, making the calibration impossible...
If I make the calibration at decent source power level (0dBm) and then decrease the source power to level below -60dBm, then the S paramater displayed are completely inconsistent.
Any idea to fix my problem?
Thanks
Issam