A novel result is presented concerning the locus, on the source reflection coefficient plane,
of the optimum tradeoff between noise factor and available gain. Although this locus has …

The stability analysis of nonlinear circuits is a central problem in the framework of microwave
design, as applied to high-power amplifiers, oscillators, frequency dividers, and multipliers …

A full and rigorous treatment of conditional and unconditional stability and instability for an
active 3-port microwave circuit, represented at a given frequency by-parameters, is carried …

A new indicator of unconditional stability is proposed, which is well suited to-port networks
called the stability radius. When compared to previous work on this subject, the new …

Some advancements are proposed to the theory of simultaneous conjugate match (SCM) of-
ports. It is shown that, if a network qualifies for geometrical unconditional stability (g-), then it …

Some results implicit in Ohtomo's original paper are reappraised and built upon to help high-
frequency circuit designers avoid common misconceptions. An analysis of the small-signal …

A geometrical test for the unconditional stability of three-port networks is presented. The
derivation is presented in full detail, starting from the concept of input mapping region as an …

A fundamental step in the design of electronic circuits is the verification that they are stable
at least on a given set of external terminations, in order to avoid that the solution found be …

As opposed to traditional approaches for extracting small-signal equivalent circuits of active
devices, the use of extensive electro-magnetic (EM) simulations has been more recently …

This article introduces the packaging and integration of a multichannel silicon-based power
amplifier (PA) operating in the range of 70–74 GHz into a metal waveguide (WG) using a …