Analysis of optimal outphasing load trajectories for GaN Pas

Paolo Enrico de Falco, Gavin Watkins, Konstantinos Mimis, Souheil Bensmida, Kevin Morris

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents an analysis of the optimal Z f0 load trajectories of saturated GaN PAs through Z f0 and Z 2f0 load-pull measurements under constant input power on a 900 MHz 10 W PA. It is shown that a DE >50% at 10 dB back-off can be obtained for a range of 160 ? of Z 2f0 when Z f0 is set to its optimal point. The black box combiner design equations are used as a tool to determine the complete outphasing load trajectories for outphasing systems designed for different back-off levels and extract drain efficiency performance for a range of Z 2f0 terminations. When the suboptimal outphasing load trajectories are considered, Z 2f0 is demonstrated to have a greater impact compared to the case Z f0 follows the optimal load trajectories.

Original languageEnglish
Title of host publication2018 Asia-Pacific Microwave Conference (APMC)
PublisherIEEE
Pages58-60
Number of pages3
ISBN (Electronic)9784902339451
DOIs
Publication statusPublished - 17 Jan 2019
Event30th Asia-Pacific Microwave Conference 2018 - Kyoto, Japan
Duration: 6 Nov 20189 Nov 2018

Conference

Conference30th Asia-Pacific Microwave Conference 2018
Abbreviated titleAPMC 2018
CountryJapan
CityKyoto
Period6/11/189/11/18

Fingerprint

Trajectories

Keywords

  • Harmonically tuned PAs
  • Outphasing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

de Falco, P. E., Watkins, G., Mimis, K., Bensmida, S., & Morris, K. (2019). Analysis of optimal outphasing load trajectories for GaN Pas. In 2018 Asia-Pacific Microwave Conference (APMC) (pp. 58-60). IEEE. https://doi.org/10.23919/APMC.2018.8617660
de Falco, Paolo Enrico ; Watkins, Gavin ; Mimis, Konstantinos ; Bensmida, Souheil ; Morris, Kevin. / Analysis of optimal outphasing load trajectories for GaN Pas. 2018 Asia-Pacific Microwave Conference (APMC). IEEE, 2019. pp. 58-60
@inproceedings{9f9f80d3a3ba43fd9754001fc23c5f6e,
title = "Analysis of optimal outphasing load trajectories for GaN Pas",
abstract = "This paper presents an analysis of the optimal Z f0 load trajectories of saturated GaN PAs through Z f0 and Z 2f0 load-pull measurements under constant input power on a 900 MHz 10 W PA. It is shown that a DE >50{\%} at 10 dB back-off can be obtained for a range of 160 ? of Z 2f0 when Z f0 is set to its optimal point. The black box combiner design equations are used as a tool to determine the complete outphasing load trajectories for outphasing systems designed for different back-off levels and extract drain efficiency performance for a range of Z 2f0 terminations. When the suboptimal outphasing load trajectories are considered, Z 2f0 is demonstrated to have a greater impact compared to the case Z f0 follows the optimal load trajectories.",
keywords = "Harmonically tuned PAs, Outphasing",
author = "{de Falco}, {Paolo Enrico} and Gavin Watkins and Konstantinos Mimis and Souheil Bensmida and Kevin Morris",
year = "2019",
month = "1",
day = "17",
doi = "10.23919/APMC.2018.8617660",
language = "English",
pages = "58--60",
booktitle = "2018 Asia-Pacific Microwave Conference (APMC)",
publisher = "IEEE",
address = "United States",

}

de Falco, PE, Watkins, G, Mimis, K, Bensmida, S & Morris, K 2019, Analysis of optimal outphasing load trajectories for GaN Pas. in 2018 Asia-Pacific Microwave Conference (APMC). IEEE, pp. 58-60, 30th Asia-Pacific Microwave Conference 2018, Kyoto, Japan, 6/11/18. https://doi.org/10.23919/APMC.2018.8617660

Analysis of optimal outphasing load trajectories for GaN Pas. / de Falco, Paolo Enrico; Watkins, Gavin; Mimis, Konstantinos; Bensmida, Souheil; Morris, Kevin.

2018 Asia-Pacific Microwave Conference (APMC). IEEE, 2019. p. 58-60.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Analysis of optimal outphasing load trajectories for GaN Pas

AU - de Falco, Paolo Enrico

AU - Watkins, Gavin

AU - Mimis, Konstantinos

AU - Bensmida, Souheil

AU - Morris, Kevin

PY - 2019/1/17

Y1 - 2019/1/17

N2 - This paper presents an analysis of the optimal Z f0 load trajectories of saturated GaN PAs through Z f0 and Z 2f0 load-pull measurements under constant input power on a 900 MHz 10 W PA. It is shown that a DE >50% at 10 dB back-off can be obtained for a range of 160 ? of Z 2f0 when Z f0 is set to its optimal point. The black box combiner design equations are used as a tool to determine the complete outphasing load trajectories for outphasing systems designed for different back-off levels and extract drain efficiency performance for a range of Z 2f0 terminations. When the suboptimal outphasing load trajectories are considered, Z 2f0 is demonstrated to have a greater impact compared to the case Z f0 follows the optimal load trajectories.

AB - This paper presents an analysis of the optimal Z f0 load trajectories of saturated GaN PAs through Z f0 and Z 2f0 load-pull measurements under constant input power on a 900 MHz 10 W PA. It is shown that a DE >50% at 10 dB back-off can be obtained for a range of 160 ? of Z 2f0 when Z f0 is set to its optimal point. The black box combiner design equations are used as a tool to determine the complete outphasing load trajectories for outphasing systems designed for different back-off levels and extract drain efficiency performance for a range of Z 2f0 terminations. When the suboptimal outphasing load trajectories are considered, Z 2f0 is demonstrated to have a greater impact compared to the case Z f0 follows the optimal load trajectories.

KW - Harmonically tuned PAs

KW - Outphasing

UR - http://www.scopus.com/inward/record.url?scp=85061831882&partnerID=8YFLogxK

U2 - 10.23919/APMC.2018.8617660

DO - 10.23919/APMC.2018.8617660

M3 - Conference contribution

AN - SCOPUS:85061831882

SP - 58

EP - 60

BT - 2018 Asia-Pacific Microwave Conference (APMC)

PB - IEEE

ER -

de Falco PE, Watkins G, Mimis K, Bensmida S, Morris K. Analysis of optimal outphasing load trajectories for GaN Pas. In 2018 Asia-Pacific Microwave Conference (APMC). IEEE. 2019. p. 58-60 https://doi.org/10.23919/APMC.2018.8617660