A Compact Dual-Capacitor Relay SPT Supply Modulator with Overshoot-Free Adaptive on-Time Control for 5G FR2 CMOS PA

Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference 2026

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Authors: Zhewen Yu, Zhiguo Tong, Junwei Huang, Jun Yin, Yan Lü
DOI: 10.1109/isscc49663.2026.11409358
Cited by: 0
References: 9

Abstract

5G new-radio frequency-range-2 CMOS PAs with high peak-to-average-power ratios suffer from low efficiency, calling for compact and fast symbol-power-tracking (SPT) supply modulators (SMs). Inductor-based SPT shows limited tracking speed, while multilevel switched-capacitor approaches need redundant capacitors and switches. The proposed prototype dual-capacitor relay SPT SM with overshoot-free adaptive constant on-time control achieves

Fields of Study & Subjects

Advanced Power Amplifier Design Advanced DC-DC Converters Analog and Mixed-Signal Circuit Design

Publication details

Journal / source
Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference
Pages
462–464
Publication date
15 February 2026
Language
EN