Efficient Millimeter Wave Doherty PA Design Based on a Low-Loss Combiner Synthesis Technique
Journal article, 2017

We report on a record-efficient 30-GHz 21-dBm differential Doherty PA designed in a 130-nm SiGe process. The output network is designed using a recently developed combiner synthesis technique. This technique enables impedance inversion and parasitic compensation to be integrated in one compact network. As a result, the combiner loss is reduced with 0.3-0.5 dB compared with a conventional Doherty combiner. The measured collector and power-added efficiencies at 6-dB back-off level are 30% and 24.3%, respectively, which further validates the advantages of the design technique.

SiGe

Doherty

power amplifier

Author

MUSTAFA ÖZEN

GigaHertz Centre

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Narek Rostomyan

Klaus Aufinger

Christian Fager

GigaHertz Centre

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

IEEE Microwave and Wireless Components Letters

1531-1309 (ISSN)

Vol. 27 12 1143-1145

Areas of Advance

Information and Communication Technology

Infrastructure

Kollberg Laboratory

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/LMWC.2017.2763739

More information

Latest update

6/13/2018