Video 5.4 - Conquer Radio Frequency

This video employs a BFP405 transistor model which was readily available in AWR v11. If you can't find this model in newer versions, please download this simulation file which includes the BFP405 model explorerf.com/BFP405_from_AWR_...
Content:
Amplifier Stability Part 2.
Stabilisation though reactive emitter degeneration. Demonstration of its validity at frequency of interest and higher frequencies.
Analysis of stability at lower frequencies when this technique is used. Demonstration of need for stabilisation at frequencies lower than operating frequency.
Mu factor versus frequency for reactive stabilisation and purely resistive stabilisation.
Comparison of broadband performance and identification of improvements needed in purely resistive stabilisation which result in further loss of gain.
Version 13 update: In version 13, “To” and “From” ports must now be specified for a number of two-port measurements. This was not required for version 12 or earlier.
The measurement “MU1()” shown in the video has now been replaced by MU1(2,1) in version 13. That is "To port"=2, "From port"=1.
"MU2()" has also been replaced by MU2(2,1).
The measurement “SCIR1()” shown in the video has now been replaced by SCIR1(2,1) in version 13. “SCIR2()” has also been replaced by SCIR2(2,1).
You may download the "Conquer Radio Frequency" e-book, which provides support materials for these videos, at explorerf.ipage.com/conquer_ra...
Using Tuner to stabilise input (0:00)
Comparison Shunt & Series resistive stabilisation (2:00)
Reactive Feedback stabilisation - Emitter degeneration (4:00)