33.4 A 4.5-to-7.2GHz Beyond Rail-to-Rail Output SCPA with 27.9dBm P out and 46.2% DE at 5.1GHz Using Periodic Voltage-Pacing Network
Abstract
This work presents a switched-capacitor power amplifier (SCPA) using periodic voltagepacing network, capable of generating output voltage beyond conventional rail-to-rail limit, which enhances both the output power (Pout) and efficiency. Fabricated in a 40 nm CMOS process, it shows a competitive 27.92 dBm peak Poutand 46.2% peak drain efficiency covering a wide 1 dB bandwidth from 4.5 to 7.2 GHz. Furthermore, it supports 200 MHz 64QAM and 80 MHz 256 QAM, confirming its suitability for 5 G/6 G and WiFi systems.
Fields of Study & Subjects
Advanced Power Amplifier Design
Radio Frequency Integrated Circuit Design
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
- 568–570
- Publication date
- 15 February 2026
- Language
- EN