An Envelope Tracking Supply Modulator Utilizing a GaN-Based Integrated Four-Phase Switching Converter and Average Power Tracking-Based Switch Sizing With 85.7% Efficiency for 5G NR Power Amplifier
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2021.3079403
Abstract: This article proposes a supply modulator (SM) that uses high switching frequency gallium-nitride (GaN) devices to achieve a four-phase fast step-down converter for the fast-tracking ability of the envelope tracking (ET). The ET signal is… read more here.
Keywords: envelope tracking; four phase; supply; power ... See more keywords
Envelope Tracking Supply Modulator with Trellis-Search-Based Switching and 160-MHz Capability
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2021.3128394
Abstract: The hybrid amplifier that combines a buck converter and a linear amplifier has been widely used as the envelope tracking (ET) supply modulator for ET power amplifier (PA) application. Instead of adding more large off-chip… read more here.
Keywords: tracking supply; envelope tracking; trellis search; 160 mhz ... See more keywords
Design Techniques for High-Efficiency Envelope-Tracking Supply Modulator for 5th Generation Communication
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2022.3165820
Abstract: This brief provides a brief tutorial on designing a high efficiency envelope-tracking supply modulator with recent techniques. Design challenges for 5G communication applications are given. Detailed techniques covering topology derivation, multi-level and fast-speed switching converter… read more here.
Keywords: envelope tracking; high efficiency; efficiency envelope; design ... See more keywords
A High Slew-Rate Adaptive Biasing Hybrid Envelope Tracking Supply Modulator for LTE Applications
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2017.2678476
Abstract: A linear-switch mode hybrid envelope tracking (ET) supply modulator utilizing adaptive biasing and gain enhanced current mirror operational transconductance amplifier (OTA) with class AB output stage in parallel with a switching regulator is presented. In… read more here.
Keywords: tex math; supply; supply modulator; inline formula ... See more keywords