An Active Load-Pull Technique to Emulate Outphasing Power Amplifiers
Paper i proceeding, 2021

A general measurement-based design methodology for outphasing transmitter architectures is presented. The emulation technique allows to predict the full real world performance of the outphasing scheme without requiring to fabricate the complete power amplifier (PA). Simply, iterative active load-pull measurements of a single branch PA together with the Sparameters of the output combiner are needed. The method determines the authentic dynamic loading condition of both branch PAs by revealing the internal interactions between the nonlinear active devices. Thereby, the insight into the dynamics of load modulation during the outphasing operation provided by the technique, allows PA designers to optimize circuit performance. The design methodology is demonstrated by emulating an outphasing scheme at 2.14 GHz operated in pure-and mixed-mode.

power amplifier (PA)

outphasing

measurement technique

emulation

load modulation

Active load-pull

Författare

Jose-Ramon Perez-Cisneros

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

William Hallberg

Qamcom Research & Technology

Koen Buisman

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

University of Surrey

2021 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2021

24-27 9375536

2021 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2021
Virtual, San Diego, USA,

Ämneskategorier

Telekommunikation

Rymd- och flygteknik

Annan elektroteknik och elektronik

DOI

10.1109/PAWR51852.2021.9375536

Mer information

Senast uppdaterat

2021-05-05