This book presents methods for the design of the main microwave active devices.
The first chapter focuses on amplifiers working in the linear mode. The authors present the problems surrounding narrowband and wideband impedance matching, stability, polarization and the noise factor, as well as specific topologies such as the distributed amplifier and the differential amplifier.
Chapter 2 concerns the power amplifier operation. Specific aspects on efficiency, impedance matching and class of operation are presented, as well as the main methods of linearization and efficiency improvement.
Frequency transposition is the subject of Chapter 3. The author presents the operating principle as well as the different topologies using transistors and diodes.
Chapter 4 is dedicated to the operation of fixed frequency and tunable oscillators such as the voltage controlled oscillator (VCO) and the yttrium iron garnet (YIG).
The final chapter presents the main control functions, i.e. attenuators, phase shifters and switches.
1. Amplification in Linear Mode, Jean-Luc Gautier and Sébastien Quintanel.
2. Power Amplification, Jean-Luc Gautier, Myriam Ariaudo and Cédric Duperrier.
3. Frequency Transposition, Jean-Luc Gautier.
4. Oscillators, Jean-Luc Gautier.
5. Control Functions, Jean-Luc Gautier.
Appendix 1. Lossless Two-Port Network: Mismatching.
Appendix 2. Noise in a Balanced Amplifier.
Appendix 3. Specific Topologies with Transistors.
Appendix 4. Wideband Impedance Matching: Reactive Two-Port Networks.
Appendix 5. Wideband Impedance Matching: Dissipative Two-Port Networks.
Appendix 6. Wideband Amplification: Parallel Resistive Feedback.
Appendix 7. Graphical Method.
Appendix 8. Distributed Amplifier.
Appendix 9. Differential Amplifier.
Appendix 10. Third-order Intermodulation.
Jean-Luc Gautier is Emeritus Professor at ENSEA in France. He has carried out research into the design of microwave circuits throughout his career. It has led to more than 100 publications or communications in journals or at international conferences.