Comparative Evaluation of Optimum Power and Efficiency Terminations Predicted by Alternative Methods for GaN Ka-band Power Amplifier Design

A comparative evaluation is provided in this paper regarding two design approaches for Ka-band Gallium Nitride Power Amplifiers. The first approach uses the standard electrical models provided by the foundry, while the alternative approach uses a custom model derived from in-house load-pull characte...

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Bibliographic Details
Main Authors: Costanzo, Ferdinando, Longhi, Patrick E., Kantanen, Mikko, Giofre, Rocco, Ciccognani, Walter, Colangeli, Sergio, Quaglia, Roberto, Varonen, Mikko, Tasker, Paul, Limiti, Ernesto
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
Foundries
Gallium nitride
Ka-band
Microwave amplifiers
Microwave circuits
Microwave theory and techniques
MMIC
Power amplifiers
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Summary:A comparative evaluation is provided in this paper regarding two design approaches for Ka-band Gallium Nitride Power Amplifiers. The first approach uses the standard electrical models provided by the foundry, while the alternative approach uses a custom model derived from in-house load-pull characterization. Both Power Amplifiers are designed to provide 30 dBm output power and 30% efficiency in the 31 - 35 GHz bandwidth. It is shown that the PA based on the custom model has a better PAE performance by about 4% and higher output power by 0.3 dB.
ISSN:2689-5498
DOI:10.1109/INMMiC54248.2022.9762218