This work reviews the topic of two-port unconditional stability (US) and fixes some misconceptions still common among high-frequency designers, notwithstanding the broad, relevant literature. Ohtomo's test for network stability is then presented in a synthetic form and linked to US conditions. Finally, this approach is extended to N-port networks to obtain two sets of US conditions, which are intuitive generalizations of results well known in the two-port case. These conditions represent a necessary complement to the few works which have discussed three-port US up to now, since they only focus on the geometrical part of the problem, omitting to explicitly take care of Rollett's proviso and its implications on US.
Colangeli, S., Cleriti, R., Palombini, D., Limiti, E. (2014). On the unconditional stability of N-port networks. In Proceedings of the 44th European Microwave Conference (pp.1520-1523). IEEE [10.1109/EuMC.2014.6986738].
On the unconditional stability of N-port networks
LIMITI, ERNESTO
2014-01-01
Abstract
This work reviews the topic of two-port unconditional stability (US) and fixes some misconceptions still common among high-frequency designers, notwithstanding the broad, relevant literature. Ohtomo's test for network stability is then presented in a synthetic form and linked to US conditions. Finally, this approach is extended to N-port networks to obtain two sets of US conditions, which are intuitive generalizations of results well known in the two-port case. These conditions represent a necessary complement to the few works which have discussed three-port US up to now, since they only focus on the geometrical part of the problem, omitting to explicitly take care of Rollett's proviso and its implications on US.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
