PA Design Techniques
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Course Summary
This two-day course provides participants with an overview of
the types and characteristics of large signal power
amplifiers. Participants learn the underlying theory of operation,
design techniques, operational and performance parameters. Design
tradeoffs, linearisation, and efficiency enhancement techniques of
nonlinear circuits are presented.
Learning Objectives
• Describe nonlinear circuits with nonlinear CAE models.
• Design high efficiency PA considering operating class and
harmonic terminations for analogue and digital systems.
Target Audience
Component and system level designers, engineering managers,
test and engineering technicians will benefit from this course.
Basic knowledge of microwave measurements and transmission line
(Smith Chart) theory is assumed.
Course Outline
Day One
Power Amplifier Design
• Nonlinearity amplifier modeling: weak, strong
• Gain and power match: Load pull techniques, load
line theory, predicting power contours
• Design examples
• High efficiency techniques: Class A, B, C, E, F,
harmonic termination consideration.
Day Two
Power Amplifier Design
• Overdrive effects: current, voltage, modes (A, AB, B, C)
• CAD
design and simulation
• PA architecture: push-pull, balanced,
multistage, biasing and stability
• PA distortion analysis: power
and Volterra series, envelop methods, spectral regrowth
•
Efficiency enhancement
• Linearisation techniques
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