Loop Gain Envelope Stability Analysis of MMIC Power Amplifiers
Loop gain analysis is typically performed on RF/microwave power amplifiers in order to ensure that stability is achieved for a wide range of applications from low frequency up to frequencies where device oscillation is no longer possible. Rather than evaluating the loop gain for all combinations of input and output reflection coefficient phases, a new loop gain envelope technique has been shown to cut the simulation time from hours down to seconds, making it ideal for stability optimization. This talk presents a method for evaluation of the loop gain envelope, as introduced recently within the V15 release of the Cadence® AWR Design Environment® platform, using a MMIC amplifier as an example.
Presented by: Dr. Michael Roberg, Qorvo