A 0.6-to-0.9GHz, 28.06dBm P out , 43.73% SE, 6-Phase Switched-Capacitor Power Amplifier Using In-Cell Digital Waveform Synthesis for the 2 nd -, 3 rd -, and 4 th -Harmonic Suppression
Abstract
This work presents a 6-phase 0.6-to-0.9GHz switched-capacitor power amplifier with a peak output power of 28.06 dBm and a peak system efficiency of 43.73%, using digital waveform synthesis for harmonic suppression. A reused differential-switch topology is utilized to generate multi-level stepped waveform with intrinsically canceled 2nd, 3rd, and 4th harmonics. Such an SCPA achieves 38.7/52.8/39.5dBc suppression level of the 2nd/3rd/4th harmonics at 850 MHz and supports$40 \text{MHz} 64-\text{QAM}$and$20 \text{MHz} 256-\text{QAM}$signals.
Fields of Study & Subjects
Advanced Power Amplifier Design
Analog and Mixed-Signal Circuit Design
Radio Frequency Integrated Circuit Design
Publication details
- Journal / source
- Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference
- Pages
- 570–572
- Publication date
- 15 February 2026
- Language
- EN