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A New Continuous Class-E Mode Based on the General Theory of High-Efficiency Continuous Power Amplifier
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  • Xuepeng Wei,
  • Yonglun Luo,
  • Yulan Wu,
  • Guoqing Yuan,
  • Rong Chang,
  • Guoping Hong
Xuepeng Wei
University of Electronic Science and Technology of China
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Yonglun Luo
University of Electronic Science and Technology of China

Corresponding Author:dlyluo@uestc.edu.cn

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Yulan Wu
University of Electronic Science and Technology of China
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Guoqing Yuan
University of Electronic Science and Technology of China
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Rong Chang
University of Electronic Science and Technology of China
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Guoping Hong
University of Electronic Science and Technology of China
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Abstract

By multiplying with the continuous factor (CF), the conventional Class- F / F - 1 , Class-J power amplifier (PA) can be expanded to their corresponding continuous modes, resulting in a great degree of freedom for broadband design. However, this method can hardly apply to other types of PAs. In view of this problem, the continuous mode is deeply analyzed from the perspective of equation solving for the first time, and a general theory for high-efficiency broadband continuous PA design is proposed. In this theory, the continuous impedance space does not rely on a mapping relationship achieved by multiplying with the CF, but on a direct solution of the high-efficiency equations to obtain the broadband design space. This approach is simpler and has the potential to provide greater design space. As a validation, this theory is used for the analysis of Class-E PAs and a new continuous Class-E (NC-E) PA is presented. With knee-point voltage and finite harmonics taken into account, this type of PA greatly expands the broadband design space of Class-E PAs, and also has the advantage of harmonic matching. The NC-E PA is designed and manufactured using GaN HEMT CGH40010F, which achieves 40.6∼41.6dBm output power and 66.2%∼74.2% drain efficiency (DE) in the frequency band of 2.5-3.8GHz.
25 May 2023Submitted to International Journal of Circuit Theory and Applications
25 May 2023Submission Checks Completed
25 May 2023Assigned to Editor
25 May 2023Review(s) Completed, Editorial Evaluation Pending
26 May 2023Reviewer(s) Assigned
20 Jun 2023Editorial Decision: Revise Major
30 Jun 20231st Revision Received
03 Jul 2023Submission Checks Completed
03 Jul 2023Assigned to Editor
03 Jul 2023Review(s) Completed, Editorial Evaluation Pending
03 Jul 2023Reviewer(s) Assigned
06 Jul 2023Editorial Decision: Accept