Using S-Parameter Files to Model Small- and Large-Signal Amplifier Performance in ADS®
Apr 07, 2026 | Amplifiers
This application note offers guidance on using Advanced Design System (ADS) to model the performance of Mini-Circuits Amplifiers based on S-Parameter data. It covers small and large-signal modeling techniques, emphasizing behavioral models and simulations. The note aims to enhance design engineers' understanding of available resources for effective component modeling.

The Frequency Diplexer as a Combiner
Mar 31, 2026 | Engineering Resources
While frequency multiplexers find a great many applications in passive filtering and channelization, the most fundamental of these, the diplexer, is often utilized as a splitter and combiner for MMIC power amplifier chains. Compared to traditional power splitters and combiners, multiplexers split and recombine signals of disparate frequencies, affording lower loss as well as inherent filtering that is not present in their power splitting/combining counterparts. This article discusses suspended substrate diplexers, how they are applied in the Wi-Fi realm, and the merits of their usage in an airborne SATCOM application. Both applications show designs wherein diplexers combine different frequency bands to yield a composite signal at the common port.