By Topic

Improved Design of Outphasing Power Amplifier Combiners

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Walter Gerhard ; Microwave Research Laboratory, Christian-Albrechts-University Kiel, Kaiserstrasse 2, D-24143 Kiel, Germany ; Reinhard Knoechel

This paper presents a novel and improved design of signal combiners for highly efficient outphasing power amplifiers. Additional shunt reactances for an output power back off efficiency peaking, as they are required for the standard Chireix combiners, are eliminated. The circuits are based on two transmission lines with different line lengths and allow compact implementations. Analytical design equations are derived and formulas describing the operation of the new combiners are presented. Several design examples are given for combiners equivalent to the standard Chireix and to new circuits and compared with respect to their physical implementation. Design trade offs are discussed.

Published in:

2009 German Microwave Conference

Date of Conference:

16-18 March 2009