New Approach of Efficiency Improvement in 10 dB Doherty Power Amplifier for 4G LTE and 5G Wireless Applications

作者

  • Suganthi Santhanam Department of Electronics and Communication Engineering K. Ramakrishnan College of Technology, Trichy, Tamilnadu-621 112, India
  • Palavesam Thiruvalar Selvan Department of Electronics and Communication Engineering SRM TRP Engineering College, Trichy, Tamilnadu, India

关键词:

Auxiliary amplifier, Doherty power amplifier, efficiency, peak to average power ratio, transceiver, wireless communication

摘要

In this research article, the design procedure and comparative analysis of the 10 dB Doherty power amplifier (DPA) with single and double auxiliary amplifier for maximum efficiency has been presented. A new Doherty amplifier structure with parallel two auxiliary amplifiers based on conventional design having optimum value of load resistance of 3.162 ohm has been proposed with higher efficiency of 85.803% and analyzed with n-tone sinusoidal signal. The proposed Doherty power amplifier can achieve drain efficiency of 83.299% & with single and 85.803% with dual auxiliary amplifier at the output power back, off of 10 dB from the saturated power point. The simulated outputs are matched with mathematically derived design values. The simulated n-tone time response shows that the proposed design of DPA can able to handle different modulation standards at different frequencies with compatible structure.

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参考

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已出版

2021-04-08

栏目

General Submission