Current scaled Doherty amplifier for high efficiency and high linearity
Paper i proceeding, 2016

In this paper, a novel Doherty power amplifier (PA) design method that enables high efficiency and high linearity simultaneously is developed. The output combiner network parameters are solved to satisfy boundary conditions required for high efficiency, and linear gain and phase responses. The proposed method is experimentally verified by a 2.14 GHz prototype PA, fabricated using two identical 15 W GaN HEMT devices. For a 8.6 dB peak to average power ratio 10 MHz LTE signal, the PA presents an average power added efficiency of 40%, and an adjacent power leakage ratio of -41 dBc without any linearization.

Författare

William Hallberg

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

MUSTAFA ÖZEN

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Christian Fager

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

IEEE MTT-S International Microwave Symposium Digest

0149645X (ISSN)

Art. no. 7540185- 7540185

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/MWSYM.2016.7540185

ISBN

978-150900698-4

Mer information

Skapat

2017-10-07