Ml. Edwards et S. Cheng, CONDITIONALLY STABLE AMPLIFIER DESIGN USING CONSTANT MU-CONTOURS, IEEE transactions on microwave theory and techniques, 44(12), 1996, pp. 2634-2640
Conditionally stable amplifiers (0 < k < 1) can be an attractive desig
n option for commercial applications where increased gain can be achie
ved by accepting a measured risk of instability, A procedure is presen
ted for designing amplifier input and output matching networks which p
ermits an a-priori, quantitative trade-off between gain and the stabil
ity parameter, mu (or mu') Analytical results have been derived suitab
le for CAD implementation.