Version 1
: Received: 6 November 2024 / Approved: 6 November 2024 / Online: 7 November 2024 (10:29:32 CET)
How to cite:
Turalchuk, P.; Filipiuk, I.; Iskakov, B. A Dynamic Load Modulation Power Amplifier with Ferroelectric Based Tunable Matching Network. Preprints2024, 2024110474. https://doi.org/10.20944/preprints202411.0474.v1
Turalchuk, P.; Filipiuk, I.; Iskakov, B. A Dynamic Load Modulation Power Amplifier with Ferroelectric Based Tunable Matching Network. Preprints 2024, 2024110474. https://doi.org/10.20944/preprints202411.0474.v1
Turalchuk, P.; Filipiuk, I.; Iskakov, B. A Dynamic Load Modulation Power Amplifier with Ferroelectric Based Tunable Matching Network. Preprints2024, 2024110474. https://doi.org/10.20944/preprints202411.0474.v1
APA Style
Turalchuk, P., Filipiuk, I., & Iskakov, B. (2024). A Dynamic Load Modulation Power Amplifier with Ferroelectric Based Tunable Matching Network. Preprints. https://doi.org/10.20944/preprints202411.0474.v1
Chicago/Turabian Style
Turalchuk, P., Irina Filipiuk and Bayazet Iskakov. 2024 "A Dynamic Load Modulation Power Amplifier with Ferroelectric Based Tunable Matching Network" Preprints. https://doi.org/10.20944/preprints202411.0474.v1
Abstract
A power amplifiers are crucial components that significantly influence the linearity and energy efficiency of next-generation communication system radio units. A key challenge in designing power amplifiers is managing high Peak-to-Average Power Ratio (PAPR) to achieve both high linearity and energy efficiency during back-off conditions. This paper presents simulation and measurement results for a dynamic load modulation power amplifier based on a ferroelectric tunable matching network. Experimental studies on the power amplifier with the tunable output matching network confirm its performance at 8 dB back-off while varying the control voltage applied to the ferroelectric element. Additionally, a bias modulator to adjust the transistor's load in relation to input power was designed. Measurement studies of the dynamic load modulation power amplifier demonstrated an efficiency of at least 50% at 8 dB back-off and higher 60% at peak power. Furthermore, it was found that the modulator output voltage adjustment function on input power of the bias modulator affects the linearity of the output power. Different bias responses are studied and, as a result, optimal output voltage response is found. The proposed load modulation power amplifier is promising for operation with high PAPR digital signals.
Keywords
power amplifier; ferroelectric capacitor; energy efficiency; load modulation
Subject
Engineering, Telecommunications
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
