Solutions for nonlinear characterization of high-power amplifiers Design How-To 12/6/2010 4 comments High-power RF amplifiers are used in telecommunications, biomedical, and military systems. With output power levels ranging up to 1 kW, these amplifiers are typically designed to operate near or into compression in order to provide the maximum output power possible. Designing high-power amplifiers requires a detailed analysis of its nonlinear behavior.
Two different ways of looking at noise figure Design How-To 12/6/2010 3 comments Reducing receiver-contributed noise may be the least expensive route to take but may also be the most challenging for the designer who must develop a low-noise amplifier (LNA) at the front end of the receiver. For those designers, an accurate and repeatable method for measuring noise figure will be a necessity.
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.
January 2016 Cartoon Caption ContestBob's punishment for missing his deadline was to be tied to his chair tantalizingly close to a disconnected cable, with one hand superglued to his desk and another to his chin, while the pages from his wall calendar were slowly torn away.122 comments