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Oscilloscope based two-port measurement system using error-corrected modulated signals

Kristoffer Andersson (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik) ; Christian Fager (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik)
2012 Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, INMMIC 2012 (2012)
[Konferensbidrag, refereegranskat]

A technique to accurately measure modulated wideband signals in a two-port context is presented. The technique uses a four channel high frequency digital sampling oscilloscope to perform in-situ correction of both amplitude and phase of the modulated stimulus signal. An advantage of the proposed technique is that no assumption about the group delay has to be made. The technique is demonstrated in a source-pull system. The results clearly demonstrate the necessity of using error-correction in tuner based setups due to the large variations in group-delay over the measurement bandwidth. © 2012 IEEE.



Denna post skapades 2012-12-04. Senast ändrad 2015-12-17.
CPL Pubid: 167050

 

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Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur