Following this tutorial to measure Load-Pull Contours https://lost-contact.mit.edu/afs/wam.umd.edu/department/enee/software/mp-cadence/MMSIM60/doc/spectreRF/chap11.html#1020288, I got the same result on the Smith chart but when I remove the port adapter on the schematic and alter the output port's impedance to a value of one of the points in the plotted Smith chart, I got a different output power from that shown in the load-pull contour. Why this is happening?
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