A 4-W Doherty Power Amplifier in GaN MMIC Technology for 15-GHz Applications

Roberto Quaglia; Vittorio Camarchia; Jorge Julian Moreno Rubio; Marco Pirola; Giovanni Ghione

doi:10.1109/LMWC.2017.2678440

A 4-W Doherty Power Amplifier in GaN MMIC Technology for 15-GHz Applications

Roberto Quaglia, Vittorio Camarchia, Jorge Julian Moreno Rubio, Marco Pirola, Giovanni Ghione

Research output: Contribution to journal › Article › peer-review

Abstract

This letter presents an integrated Doherty power amplifier (PA) in 0.25-μm GaN on SiC process. Designed for 15-GHz point-to-point radios, the PA exhibits an output power of 36 ± 0.5 dBm between 13.7 and 15.3 GHz, while at 14.6 GHz, it shows a 6-dB output back-off efficiency higher than 28%. Modulated signal measurements applying digital predistortion demonstrate the compatibility of the amplifier with point-to-point radio requirements. To the best of our knowledge, this PA has the highest back-off efficiency for the 15-GHz band, and is the first GaN Doherty in the Ku-band.

Original language	English
Article number	7884978
Pages (from-to)	365-367
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	27
Issue number	4
DOIs	https://doi.org/10.1109/LMWC.2017.2678440
Publication status	Published - 1 Apr 2017
Externally published	Yes

Keywords

MMICs
Gallium nitride
Power generation
Gain
Microwave circuits
Predistortion

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10.1109/LMWC.2017.2678440

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7884978

Cite this

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title = "A 4-W Doherty Power Amplifier in GaN MMIC Technology for 15-GHz Applications",

abstract = "This letter presents an integrated Doherty power amplifier (PA) in 0.25-μm GaN on SiC process. Designed for 15-GHz point-to-point radios, the PA exhibits an output power of 36 ± 0.5 dBm between 13.7 and 15.3 GHz, while at 14.6 GHz, it shows a 6-dB output back-off efficiency higher than 28%. Modulated signal measurements applying digital predistortion demonstrate the compatibility of the amplifier with point-to-point radio requirements. To the best of our knowledge, this PA has the highest back-off efficiency for the 15-GHz band, and is the first GaN Doherty in the Ku-band.",

keywords = "MMICs, Gallium nitride, Power generation, Gain, Microwave circuits, Predistortion",

author = "Roberto Quaglia and Vittorio Camarchia and {Moreno Rubio}, {Jorge Julian} and Marco Pirola and Giovanni Ghione",

year = "2017",

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doi = "10.1109/LMWC.2017.2678440",

language = "English",

volume = "27",

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AU - Quaglia, Roberto

AU - Camarchia, Vittorio

AU - Moreno Rubio, Jorge Julian

AU - Pirola, Marco

AU - Ghione, Giovanni

PY - 2017/4/1

Y1 - 2017/4/1

N2 - This letter presents an integrated Doherty power amplifier (PA) in 0.25-μm GaN on SiC process. Designed for 15-GHz point-to-point radios, the PA exhibits an output power of 36 ± 0.5 dBm between 13.7 and 15.3 GHz, while at 14.6 GHz, it shows a 6-dB output back-off efficiency higher than 28%. Modulated signal measurements applying digital predistortion demonstrate the compatibility of the amplifier with point-to-point radio requirements. To the best of our knowledge, this PA has the highest back-off efficiency for the 15-GHz band, and is the first GaN Doherty in the Ku-band.

AB - This letter presents an integrated Doherty power amplifier (PA) in 0.25-μm GaN on SiC process. Designed for 15-GHz point-to-point radios, the PA exhibits an output power of 36 ± 0.5 dBm between 13.7 and 15.3 GHz, while at 14.6 GHz, it shows a 6-dB output back-off efficiency higher than 28%. Modulated signal measurements applying digital predistortion demonstrate the compatibility of the amplifier with point-to-point radio requirements. To the best of our knowledge, this PA has the highest back-off efficiency for the 15-GHz band, and is the first GaN Doherty in the Ku-band.

KW - MMICs

KW - Gallium nitride

KW - Power generation

KW - Gain

KW - Microwave circuits

KW - Predistortion

UR - https://ieeexplore.ieee.org/document/7884978/

U2 - 10.1109/LMWC.2017.2678440

DO - 10.1109/LMWC.2017.2678440

M3 - Article

SN - 1558-1764

VL - 27

SP - 365

EP - 367

JO - IEEE Microwave and Wireless Components Letters

JF - IEEE Microwave and Wireless Components Letters

IS - 4

M1 - 7884978

ER -

A 4-W Doherty Power Amplifier in GaN MMIC Technology for 15-GHz Applications

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Keywords

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