Doherty Power Amplifiers From Fundamentals to Advanced Design Methods
Auteur : Kim Bumman
Doherty Power Amplifiers: From Fundamentals to Advanced Design Methods is a great resource for both RF and microwave engineers and graduate students who want to understand and implement the technology into future base station and mobile handset systems. The book introduces the very basic operational principles of the Doherty Amplifier and its non-ideal behaviors. The different transconductance requirements for carrier and peaking amplifiers, reactive element effect, and knee voltage effect are described. In addition, several methods to correct imperfections are introduced, such as uneven input drive, gate bias adaptation, dual input drive and the offset line technique.
Advanced design methods of Doherty Amplifiers are also explained, including multistage/multiway Doherty power amplifiers which can enhance the efficiency of the amplification of a highly-modulated signal. Other covered topics include signal tracking operation which increases the dynamic range, highly efficient saturated amplifiers, and broadband amplifiers, amongst other comprehensive, related topics.
1. Introduction to Doherty Power Amplifier2. Enhanced Doherty Power Amplifier3. Advanced Doherty Power Amplifier4. Advanced Architecture of Doherty Amplifier5. Linear Doherty PA for Handset Application
- Specifically written on the Doherty Power Amplifier by the world’s leading expert, providing an in-depth presentation of principles and design techniques
- Includes detailed analysis on correcting non-ideal behaviors of Doherty Power Amplifiers
- Presents advanced Doherty Power Amplifier architectures
Date de parution : 03-2018
Ouvrage de 184 p.
19x23.3 cm
Thème de Doherty Power Amplifiers :
Mots-clés :
Asymmetrical bias; Average power tracking (APT); Bias adaptation; Compact design; COMS Doherty amplifier; Current-combined Doherty amplifier; Doherty amplifier; Efficiency; Gain; Gain modulation; Harmonic cancellation; Impedance transformation; Input divider; Inverted Doherty amplifier; Inverter; Knee voltage effect; Linearity; Load modulation; Offset line; Optimized peaking amplifier; Phase compensation; Saturated Doherty amplifier; Three-stage Doherty amplifier; Three-way Doherty amplifier; Uneven drive; Voltage-combined Doherty amplifier