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Load-Pull Contours issue

marinojr

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?

  • This is from a 10 year old version of the software which with a manual posted in violation of our license agreement. We will be contacting MIT to advise them that they are not allowed to publish our manuals on the open web.

    Please at least read a current version of the documentation - things have changed in the meantime with a more direct way of doing load pull, with examples in the MMSIM installation - e..g in MMSIM13.1 and MMSIM14.1 there's a workshop at <MMSIMinstDir>/tools/spectre/examples

    Regards,

    Andrew.

  • I didn't know about these examples in the MMSIM installation. This was very helpful! Thank you!

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