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.

multi-stage

Active load-pull

emulation

measurement technique

inter-stage

power amplifier

differential

Author

Koen Buisman

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Jose-Ramon Perez-Cisneros

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

William Hallberg

Qamcom IPR Technol AB

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

8/17/2021