Broadband Outphasing Power Amplifier Using Doherty-Chireix Continuum in a GaN MMIC Process
- Resource Type
- Conference
- Authors
- Mikrut, Dominic; Roblin, Patrick; Liang, Chenyu; Smith, Shane; Tantawy, Ramy
- Source
- 2023 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications RF/Microwave Power Amplifiers for Radio and Wireless Applications,2023 IEEE Topical Conference on. :13-15 Jan, 2023
- Subject
- Aerospace
Components, Circuits, Devices and Systems
Engineering Profession
Fields, Waves and Electromagnetics
General Topics for Engineers
Power, Energy and Industry Applications
Signal Processing and Analysis
Wireless communication
Shunts (electrical)
Power measurement
Pulse measurements
Broadband amplifiers
Capacitors
Power amplifiers
Doherty
Chireix
Outphasing Power Amplifier
Doherty-Chrieix Continuum
GaN
MMIC
- Language
- ISSN
- 2473-4640
This paper presents the first experimental investigation of a broadband outphasing power amplifier designed in a 150nm GaN process utilizing the Doherty-Chireix Continuum. Simulations show a peak drain efficiency above 35% from 3.5-7 GHz. Peak drain efficiency was measured to be 53% when using a pulsed-RF signal at 3.5 GHz with a pulse width of 1μs and duty rate of 0.1%. Series inductors and shunt capacitors were used to minimize the total die area. The broadband outphasing power amplifier has a total die area of 3mm x 4mm.