Nonlinear Microwave Circuit Engineering
ECE 7822

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Overview

Modern RF radios developed for broadband services requires non-linear RF front ends which handle wide bandwidth, operate linearly and are power efficient. These requirements have become even more critical as the demand for high data rate has led communication system to use modulation techniques generating modulated RF signals with high peak to average power ratio.

This course will introduce microwave/RF engineers and researchers to modern large-signal characterization, design and linearization techniques which have been developed to address these challenges.

Special Topics:

• Modulated RF signals in wireless communication (2 lecture)
• Large Signal Vector Measurement Techniques with an LSNA (4 lectures)
• Direct Extraction of Transistor Models from Large Signal Load-lines (3 lectures)
• Characterisation and Modelling of Memory Effects in RF Power Transistors (2 lectures)
• Interactive Load-line Based Design of Power RF Amplifiers. Harmonic balance simulations in ADS (4 lectures)
• Direct Design of Doherty and Chireix PA using the new Embedding Power Amplifiers design/synthesis method.
• Amplifier Behavioural Modeling and X-parameters (3 lectures)
• Advanced Theory of Oscillator Design and Phase-Noise Theory (4 lectures)
• Characterization, Modeling and Linearization of IQ Modulators (3 lectures)
• Linearization of Power RF Amplifiers with Memory (3 lectures)

Links

Detailed List of Topics



Real-Time Active Loadpull


Large Signal Memory Effects in Transistors


Loadpull and Loadline based PA design


Oscillator Design and Negative Resistance


Predistortion Linearization