Outphasing combiner synthesis from transistor load pull data
Paper i proceeding, 2015

A novel load-pull based outphasing combiner synthesis approach is developed. The design technique is based on the derivation of combiner network parameters in terms of the optimal load impedances at the peak power level and a pre-defined back-off level. The combiner is then synthesized using transmission lines or lumped element networks. The design technique is verified in a 30 W GaN HEMT outphasing transmitter demonstrator. The prototype presents a power-added efficiency of 50% at 2.1 GHz with 9 dB peak-to-average power ratio (PAPR) 20 MHz LTE signals. The related measured adjacent channel leakage ratio is -51 dBc using a low complexity digital pre-distortion linearization algorithm.

Outphasing

efficiency

power amplifiers

combiner

Författare

M Pamoin-Gonzalez

Universidad de Cantabria

MUSTAFA ÖZEN

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Cesar Sanchez Perez

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Jessica Chani Cahuana

GigaHertz Centrum

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Christian Fager

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

2015 IEEE MTT-S International Microwave Symposium, IMS 2015

7166956

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/MWSYM.2015.7166956

ISBN

978-1-4799-8275-2

Mer information

Senast uppdaterat

2018-02-28