EFFICIENCY ANALYSIS OF SWITCHING CONVERTER-MODULATOR

Bayram Ibrahimov,
Azerbaijan Technical University, Baku, Azerbaijan;
bayram.ibrahimov@aztu.edu.az
https://orcid.org/0000-0002-5364-1181

Oleg Varlamov,
Institute of Radio and Information Systems (IRIS), Vienna, Austria;
ovarlamov@media-publisher.eu
https://orcid.org/0000-0002-3996-9156

DOI: 10.36724/2664-066X-2024-10-2-12-20

SYNCHROINFO JOURNAL. Volume 10, Number 2 (2024). P. 12-20.

Abstract

The article discusses methods of highly efficient linear RF power amplifier and transmitter design for future 5G/6G networks. Based on a consideration of various known methods for constructing high-efficiency power amplifiers, the prospects of developments using the envelope elimination and restoration (EER, or Kahn method) and envelope tracking (ET) method are substantiated. The prospects for implementing PWM switching converter-modulator for these methods are assessed. Based on the evaluation calculations performed, it is shown that this structure can potentially be used as an EEP/ET modulator for a number of 5G/6G applications and will have advantages over structures using class AB amplification.

Keywords:  Envelope elimination and restoration, Envelope tracking, High efficiency RF power amplifier, PWM Modulator

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