Harmonic-Injection Class-EM/F3 Power Amplifier with Finite DC-Feed Inductance
- Resource Type
- Conference
- Authors
- Mugisho, Moise Safari; Buchanan, Neil; Thian, Mury; Grebennikov, Andrei
- Source
- 2020 International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC) Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMiC), 2020 International Workshop on. :1-3 Jul, 2020
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Switches
Power amplifiers
Integrated circuit modeling
Zero voltage switching
Inductance
Harmonic analysis
Class E M
Class E M /F 3
harmonic injection
high efficiency
power amplifier
ZCS
ZCDS
ZVS
ZVDS
- Language
This paper presents the analysis and design of the Class-E M /F 3 power amplifier (PA) with finite dc-feed inductance and isolation circuit. When compared to the classical Class-E M PA, the proposed PA offers a significantly lower peak drain voltage. The idealized voltage and current waveforms of the PA show that the main circuit fulfils the ZVS/ZVDS/ZCS/ZCDS conditions, thus minimizing power dissipation during off-to-on (as in the Class-E) and on-to-off (as in the Class-E −1 ) transitions. Closed-form design equations for the load-network parameters of the PA are derived and the analytical results are confirmed by harmonic-balance simulations. A circuit prototype, employing a transmission-line load-network was designed and implemented using GaN HEMTs. The constructed PA delivered a PAE of 85.4% and a P out of 41.6 dBm at 1.25 GHz.