Inverse active load-pull in an inverse Doherty amplifier

Thomas M. Hone; Souheil Ben Smida; Kevin A. Morris; Mark A. Beach; Joe P. McGeehan; Jonathan Lees; Johannes Benedikt; Paul J. Tasker

doi:10.1109/PAWR.2013.6490170

Inverse active load-pull in an inverse Doherty amplifier

Thomas M. Hone, Souheil Ben Smida, Kevin A. Morris, Mark A. Beach, Joe P. McGeehan, Jonathan Lees, Johannes Benedikt, Paul J. Tasker

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

A dedicated inverse Doherty amplifier is presented in this paper using commercially available 10W GaN HEMT devices. Results show that an emulated 1W peaking amplifier and a 10W carrier amplifier can be used to create a highly efficient amplification architecture. Ideal inverse active load-pull is introduced theoretically with experimental results showing good agreement with the theory. A generic characterization scan of the inverse Doherty amplifier yields state of the art drain and power added efficiency in the output power back-off. A drain and power added efficiency of 60% and 50% are obtained at 10dB output power backoff respectively with a maximum output power of 41dBm at 2.1GHz.

Original language	English
Title of host publication	2013 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications
Publisher	IEEE
Number of pages	3
ISBN (Electronic)	978-1-4673-2918-7
ISBN (Print)	978-1-4673-2915-6
DOIs	https://doi.org/10.1109/PAWR.2013.6490170
Publication status	Published - 2013

Keywords

Digital Doherty
Dual-drive
Inverse active load-pull

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10.1109/PAWR.2013.6490170

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@inproceedings{16a6d645126f428d8990d3942ea29770,

title = "Inverse active load-pull in an inverse Doherty amplifier",

abstract = "A dedicated inverse Doherty amplifier is presented in this paper using commercially available 10W GaN HEMT devices. Results show that an emulated 1W peaking amplifier and a 10W carrier amplifier can be used to create a highly efficient amplification architecture. Ideal inverse active load-pull is introduced theoretically with experimental results showing good agreement with the theory. A generic characterization scan of the inverse Doherty amplifier yields state of the art drain and power added efficiency in the output power back-off. A drain and power added efficiency of 60\% and 50\% are obtained at 10dB output power backoff respectively with a maximum output power of 41dBm at 2.1GHz.",

keywords = "Digital Doherty, Dual-drive, Inverse active load-pull",

author = "Hone, \{Thomas M.\} and \{Ben Smida\}, Souheil and Morris, \{Kevin A.\} and Beach, \{Mark A.\} and McGeehan, \{Joe P.\} and Jonathan Lees and Johannes Benedikt and Tasker, \{Paul J.\}",

year = "2013",

doi = "10.1109/PAWR.2013.6490170",

language = "English",

isbn = "978-1-4673-2915-6",

booktitle = "2013 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications",

publisher = "IEEE",

address = "United States",

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TY - GEN

T1 - Inverse active load-pull in an inverse Doherty amplifier

AU - Hone, Thomas M.

AU - Ben Smida, Souheil

AU - Morris, Kevin A.

AU - Beach, Mark A.

AU - McGeehan, Joe P.

AU - Lees, Jonathan

AU - Benedikt, Johannes

AU - Tasker, Paul J.

PY - 2013

Y1 - 2013

N2 - A dedicated inverse Doherty amplifier is presented in this paper using commercially available 10W GaN HEMT devices. Results show that an emulated 1W peaking amplifier and a 10W carrier amplifier can be used to create a highly efficient amplification architecture. Ideal inverse active load-pull is introduced theoretically with experimental results showing good agreement with the theory. A generic characterization scan of the inverse Doherty amplifier yields state of the art drain and power added efficiency in the output power back-off. A drain and power added efficiency of 60% and 50% are obtained at 10dB output power backoff respectively with a maximum output power of 41dBm at 2.1GHz.

AB - A dedicated inverse Doherty amplifier is presented in this paper using commercially available 10W GaN HEMT devices. Results show that an emulated 1W peaking amplifier and a 10W carrier amplifier can be used to create a highly efficient amplification architecture. Ideal inverse active load-pull is introduced theoretically with experimental results showing good agreement with the theory. A generic characterization scan of the inverse Doherty amplifier yields state of the art drain and power added efficiency in the output power back-off. A drain and power added efficiency of 60% and 50% are obtained at 10dB output power backoff respectively with a maximum output power of 41dBm at 2.1GHz.

KW - Digital Doherty

KW - Dual-drive

KW - Inverse active load-pull

U2 - 10.1109/PAWR.2013.6490170

DO - 10.1109/PAWR.2013.6490170

M3 - Conference contribution

SN - 978-1-4673-2915-6

BT - 2013 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications

PB - IEEE

ER -

Inverse active load-pull in an inverse Doherty amplifier

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Keywords

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