Improved Design Technique of a Broadband Class-E Power Amplifier at 2GHz

Y. Qin, S. Gao, P. Butterworth, E. Korolkiewicz, A. Sambell

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

15 Citations (Scopus)


Using a new design a high efficiency power amplifier, to improve the bandwidth, is presented. Previous analytical efforts have focused on designing the Class-E output network at a single frequency, which results in a narrow frequency bandwidth. In this paper, we present a method for calculating the optimum circuit parameters to maximize the power-added efficiency (PAE) over a wider bandwidth. Simulation and practical results confirm the validity of the approach. A circuit in PCB technology using a medium-power packaged transistor was fabricated, yielding a peak PAE of 82.1% at 1.99GHz with 22.8dBm output power. A PAE greater than 60% from 1.87GHz to 2.11GHz was achieved.

Original languageEnglish
Title of host publication35th European Microwave Conference 2005 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Print)2960055128, 9782960055122
Publication statusPublished - 3 Apr 2006
Externally publishedYes
Event2005 European Microwave Conference - Paris, France
Duration: 4 Oct 20056 Oct 2005


Conference2005 European Microwave Conference

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