Towards generalized Doherty power amplifier design for multiband operation

Ayman Barakat; Mury Thian; Vincent Fusco

Towards generalized Doherty power amplifier design for multiband operation

Ayman Barakat, Mury Thian, Vincent Fusco

Research output: Contribution to conference › Paper › peer-review

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Abstract

This paper presents a new variant of broadband Doherty power amplifier that employs a novel output combiner. A new parameter ∝ is introduced to permit a generalized analysis of the recently reported Parallel Doherty power amplifier (PDPA),and hence offer design flexibility. The circuit prototype of the new DPA fabricated using GaN devices exhibits maximum drain efficiency of 85% at 43-dBm peak power and 63% at 6-dB backoff power (BOP). Measured drain efficiency of >60% at peak power across 500-MHz frequency range and >50% at 6-dB BOP across 480-MHz frequency range were achieved, confirming the theoretical wideband characteristics of the new DPA.

Original language	English
Number of pages	5
Publication status	Published - Nov 2015
Event	International Microwave and Optoelectronics Conference (IMOC 2015) - Porto de Galinhas/Pernambuco, Brazil Duration: 03 Nov 2015 → 06 Nov 2015 http://www.imoc2015.com/ (Link to conference details online)

Conference

Conference	International Microwave and Optoelectronics Conference (IMOC 2015)
Country/Territory	Brazil
City	Porto de Galinhas/Pernambuco
Period	03/11/2015 → 06/11/2015
Internet address	http://www.imoc2015.com/ (Link to conference details online)

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Towards Generalized Doherty Power Amplifier Design for Wideband Multimode Operation
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Accepted author manuscript, 660 KB

http://www.imoc2015.com/

Cite this

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title = "Towards generalized Doherty power amplifier design for multiband operation",

abstract = "This paper presents a new variant of broadband Doherty power amplifier that employs a novel output combiner. A new parameter ∝ is introduced to permit a generalized analysis of the recently reported Parallel Doherty power amplifier (PDPA),and hence offer design flexibility. The circuit prototype of the new DPA fabricated using GaN devices exhibits maximum drain efficiency of 85% at 43-dBm peak power and 63% at 6-dB backoff power (BOP). Measured drain efficiency of >60% at peak power across 500-MHz frequency range and >50% at 6-dB BOP across 480-MHz frequency range were achieved, confirming the theoretical wideband characteristics of the new DPA.",

author = "Ayman Barakat and Mury Thian and Vincent Fusco",

year = "2015",

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language = "English",

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T1 - Towards generalized Doherty power amplifier design for multiband operation

AU - Barakat, Ayman

AU - Thian, Mury

AU - Fusco, Vincent

PY - 2015/11

Y1 - 2015/11

N2 - This paper presents a new variant of broadband Doherty power amplifier that employs a novel output combiner. A new parameter ∝ is introduced to permit a generalized analysis of the recently reported Parallel Doherty power amplifier (PDPA),and hence offer design flexibility. The circuit prototype of the new DPA fabricated using GaN devices exhibits maximum drain efficiency of 85% at 43-dBm peak power and 63% at 6-dB backoff power (BOP). Measured drain efficiency of >60% at peak power across 500-MHz frequency range and >50% at 6-dB BOP across 480-MHz frequency range were achieved, confirming the theoretical wideband characteristics of the new DPA.

AB - This paper presents a new variant of broadband Doherty power amplifier that employs a novel output combiner. A new parameter ∝ is introduced to permit a generalized analysis of the recently reported Parallel Doherty power amplifier (PDPA),and hence offer design flexibility. The circuit prototype of the new DPA fabricated using GaN devices exhibits maximum drain efficiency of 85% at 43-dBm peak power and 63% at 6-dB backoff power (BOP). Measured drain efficiency of >60% at peak power across 500-MHz frequency range and >50% at 6-dB BOP across 480-MHz frequency range were achieved, confirming the theoretical wideband characteristics of the new DPA.

M3 - Paper

T2 - International Microwave and Optoelectronics Conference (IMOC 2015)

Y2 - 3 November 2015 through 6 November 2015

ER -

Towards generalized Doherty power amplifier design for multiband operation

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Conference

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