An 80W Power Amplifier with 50% Efficiency at 8dB Power Back-off over 2.6-3.8 GHz
Paper i proceeding, 2019

This paper presents the design and implementation of a wideband power amplifier (PA) suitable for applications using signals with large peak-to-average-power-ratio (PAPR). The proposed design approach is based on reducing the load modulation factor compared to conventional Doherty PA. To demonstrate the principle, a PA that operates between 2.55 GHz and 3.8 GHz has been implemented and tested. In this frequency range, the measured peak output power is 49.3 ± 0.5 dBm and the measured drain efficiency is between 47-60 % for output power levels corresponding to 8 dB output back-off (OBO).

high-PAPR

Doherty

multiband

energy efficiency

power amplifier

wideband

GaN-HEMT

Distributed

Författare

Paul Saad

Ericsson AB

Rui Hou

Ericsson AB

Richard Hellberg

Ericsson AB

Bo Berglund

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

IEEE MTT-S International Microwave Symposium Digest

0149645X (ISSN)

Vol. 2019-June 1328-1330 8701113

2019 IEEE MTT-S International Microwave Symposium, IMS 2019
Boston, USA,

Ämneskategorier

Rymd- och flygteknik

Signalbehandling

Annan elektroteknik och elektronik

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Senast uppdaterat

2020-12-03