
Wideband GaN Microwave Power Amplifiers with Class-G Supply Modulation
Cuvillier Verlag eBooks
Published on 6. February 2019
170 pages
978-3-7369-8931-3 (ISBN)
System requirements
for PDF without DRM
E-Book Single Licence
You are acquiring a single user licence for this eBook, which you might not transfer. [L]
Available for download
Description
Alles über E-Books | Antworten auf Fragen rund um E-Books, Kopierschutz und Dateiformate finden Sie in unserem Info- & Hilfebereich.
The continuous and rapidly growing demand for mobile communication access led to a major increase in the number of base stations worldwide to provide sufficient coverage and quality of service. As a consequence, mobile communication networks have become a significant contributor to global energy consumption. Several advanced topologies for efficiency improvement of RF power amplifiers have been developed. Modulating the amplifier’s supply voltage according to the variation of the envelope signal is one of the most promising concepts. This topology is investigated here, with an architecture that switches the supply voltage of the power amplifier in discrete levels with a class-G supply modulator.
The thesis addresses comprehensively all aspects of class-G supply modulation. Several prototype designs were realized to validate the theory and to gain experience on the influence of the corresponding parameters. These include the discrete supply voltage levels, the switching thresholds, and the interface between the RF PA and the class-G supply modulator. Efforts both on improving the RF power amplifiers and developing several class-G supply modulators were also involved. This work covers the progress up to a PA module that provides an instantaneous modulation bandwidth of 120 MHz and achieves better performance than state-of-the art continuous supply modulation systems.
Class-G supply modulated RF power amplifiers based on gallium nitride technology exhibit a strong nonlinear behavior, therefore linearization is required. For this purpose, the linearization with digital predistortion based on behavioral models is optimized for the class-G topology and a novel predistorter model is developed and analyzed.
More details
Series
Language
English
Place of publication
Göttingen
Germany
File size
10,29 MB
ISBN-13
978-3-7369-8931-3 (9783736989313)
Schweitzer Classification
Other editions
Additional editions

Book
02/2019
1st Edition
Cuvillier Verlag
€44.90
Shipment within 7-9 days
Person
Author/originator
Content
- Intro
- 1 Introduction
- 2 Theory of Class-G Supply Modulation
- 3 RF Power Amplifiers for Supply Modulation
- 4 Class-G Supply Modulators
- 5 Measurement Setup and Optimization
- 6 Digital Predistortion and Processing for Class-G Power Amplifiers Systems
- 7 Class-G RF Power Amplifier System Optimization
- 9 Appendix
System requirements
File format: PDF
Copy protection: without DRM (Digital Rights Management)
System requirements:
- Computer (Windows; MacOS X; Linux): Use the free software Adobe Reader, Adobe Digital Editions, or any other PDF viewer of your choice (see eBook Help).
- Tablet/Smartphone (Android; iOS): Install the free app Adobe Digital Editions or another reading app for eBooks, e.g., PocketBook (see eBook Help).
- E-reader: Bookeen, Kobo, Pocketbook, Sony, Tolino and many more (only limited: Kindle).
The file format PDF always displays a book page identically on any hardware. This makes PDF suitable for complex layouts such as those used in textbooks and reference books (images, tables, columns, footnotes). Unfortunately, on the small screens of e-readers or smartphones, PDFs are rather annoying, requiring too much scrolling.
This eBook does not use copy protection or Digital Rights Management.
For more information, see our eBook Help page.