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Analytical Design Space of Power Amplifiers Including the Class-A/B/J Continuum for Dynamic Load Modulation
- Source :
- IEEE Access, Vol 7, Pp 71933-71942 (2019)
- Publication Year :
- 2019
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2019.
-
Abstract
- In this paper, an analytical design space of power amplifiers (PAs) including the Class-A/B/J continuum for dynamic load modulation (DLM) at the current generator plane (CGP) is proposed based on the theory of load modulated (LM) continuous Class-B/J PAs. By introducing a biasing operation factor ρ, the theory of DLM PAs provides an analytical design space for all the operation modes from Class-B/J mode to Class-A mode. The analytical design space of DLM PAs shows that high efficiency is maintained at a large dynamic range of output power back-off (OPBO) with a purely resistive load modulation at the CGP when Class-B/J mode is performed. For deep Class-AB mode, the analytical design space of the DLM PAs shows that a combination of resistive and reactive load modulation at the CGP is used to maintain the high efficiency at the OPBO. The effectiveness of the proposed analytical design space is validated by load-pull measurements of a bare-chip gallium nitride (GaN) device.
- Subjects :
- General Computer Science
dynamic load modulation
power amplifier
Gallium nitride
02 engineering and technology
Topology
Dynamic load testing
chemistry.chemical_compound
Analytical design space
Class-A/B/J continuum
0202 electrical engineering, electronic engineering, information engineering
continuous mode
General Materials Science
Physics
Resistive touchscreen
Continuum (topology)
Amplifier
020208 electrical & electronic engineering
General Engineering
020206 networking & telecommunications
Biasing
Power (physics)
chemistry
Modulation
lcsh:Electrical engineering. Electronics. Nuclear engineering
lcsh:TK1-9971
Subjects
Details
- ISSN :
- 21693536
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- IEEE Access
- Accession number :
- edsair.doi.dedup.....495c8d1953ea9705e4fd17909cb1e179