Emulation of a Multi-Stage Differential Amplifier Using one Single-Ended Device-Under-Test
Paper in proceeding, 2021

A method to emulate multi-stage power amplifier (PA) architectures is presented. The technique predicts multi-stage 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-under-test 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.

Active load-pull

inter-stage

differential

emulation

power amplifier

multi-stage

measurement technique

Author

Koen Buisman

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Jose-Ramon Perez-Cisneros

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

William Hallberg

Qamcom Research & Technology

Dhecha Nopchinda

University College London (UCL)

Peter J. Zampardi

Qorvo, Inc

2021 96TH ARFTG MICROWAVE MEASUREMENT CONFERENCE (ARFTG): MEASUREMENT TECHNIQUES FOR ACCELERATING THE DESIGN OF 5G CIRCUITS AND SYSTEMS

Subject Categories

Computer Engineering

Signal Processing

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/ARFTG49670.2021.9425107

More information

Latest update

4/8/2022 6