Abstract
A method to emulate multi-stage power amplifier (PA) architectures is presented. The technique predicts multistage PA performance. The method is based on an iterative procedure using transistor/branch PA active load-pull measurements to include inter-stage interaction. As a benefit, real-world performance of a multi-stage PA can be evaluated early in the design process. Compared to previous published work, the method requires only a single representative device-undertest to embody multi-stage architectures. Thus, a compelling measurement method for PA designers is presented. The method is demonstrated by emulating a two-stage differential amplifier at 2.14 GHz using single-tone signals. © 2021 IEEE.
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Buisman, K., Perez-Cisneros, J. R., Hallberg, W., Nopchinda, D., & Zampardi, P. J. (2021). Emulation of a Multi-Stage Differential Amplifier Using one Single-Ended Device-Under-Test. In 96th ARFTG Microwave Measurement Conference: Measurement Techniques for Accelerating the Design of 5G Circuits and Systems, ARFTG 2021. Institute of Electrical and Electronics Engineers Inc. https://doi.org/10.1109/ARFTG49670.2021.9425107
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