Application of the Cardiff Model for Orthogonal LMBA Response Prediction
- Resource Type
- Conference
- Authors
- Tian, Mengyue; Urvoy, Jean-Baptiste; Powell, Jeff; Bell, James J.; Cripps, Steve C.; Tasker, Paul; Quaglia, Roberto
- Source
- 2024 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR), 2024 IEEE Topical Conference on. :17-20 Jan, 2024
- 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
Power amplifiers
Predictive models
Data models
Indexes
Power generation
Load modeling
Power amplifier
behavioural modelling
tuneable load modulation
load modulated balanced amplifier
- Language
- ISSN
- 2473-4640
This paper shows the ability of the Cardiff Behavioural Model to precisely reproduce the response of an advanced power amplifier architecture. The investigation involved varying the phase of the complex load on the isolated port of a 50 W orthogonal load-modulated balanced amplifier operating at 2.5GHz. Leveraging a limited set of data points, the Cardiff model effectively estimates the PA’s performance across a wide range, from approximately 10 dB output backoff to around 1-2 dB of gain compression, with a maximum normalised error of only −20 dB. This novel application of the Cardiff Model offers an efficient means of reducing measurement and simulation time for designing and optimizing this particular type of power amplifier.