Notre boutique utilise des cookies pour améliorer l'expérience utilisateur et nous vous recommandons d'accepter leur utilisation pour profiter pleinement de votre navigation.
This book describes a measurement system that was set to perform comprehensive measurements on RF power amplifiers.
Data obtained from the measurements is then processed mathematically to plot 3-D graphs of the basic parameters affected or generated by nonlinearities of the amplifier i.e.
gain, efficiency and distortion .Using a class AB amplifier as the DUT, two sets of signals – both swept in power level and frequency - were generated to validate the method; a two-tone signal and a WCDMA signal.
The measurement setup yields 3-D plots of variations of gain, efficiency or distortion versus any arbitrary range of frequencies and input levels.
Moreover, the measurement tool can be used to plot traditional 2-D plots.
The test signals were generated by computer then sent to a vector signal generator that generates the actual signals fed to the amplifier.
The output of the amplifier is fed to a vector signal analyzer then collected by computer to be handled.
MATLAB® was used throughout the entire process.
The system can be a very useful tool for RF amplifier users and designers.
It is also useful for students who are working to understand RF amplifiers and their common trade-offs.
Hibah Hashim AL Tahir, MSC.Telecommunications/Electronics Engineering ( University of Gävle,Sweden,2008).
Lecturer at Ajman University of Science and Technology,UAE(2009).
Currently, Lecturer at Sudan University of Science and Technology,Sudan.
Attention : dernières pièces disponibles !
Date de disponibilité: