Linearity improvement of a dual-band Doherty power amplifier using E-CRLH transmission line

Keshavarz, R; Mohammadi, A; Abdipour, A

Linearity improvement of a dual-band Doherty power amplifier using E-CRLH transmission line

Keshavarz, R

Mohammadi, A Abdipour, A

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Publisher:: ELSEVIER GMBH
Publication Type:: Journal Article
Citation:: AEU - International Journal of Electronics and Communications, 2021, 131
Issue Date:: 2021-03-01

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Field	Value	Language
dc.contributor.author	Keshavarz, R https://orcid.org/0000-0002-3880-6769
dc.contributor.author	Mohammadi, A
dc.contributor.author	Abdipour, A
dc.date.accessioned	2022-05-08T22:11:13Z
dc.date.available	2022-05-08T22:11:13Z
dc.date.issued	2021-03-01
dc.identifier.citation	AEU - International Journal of Electronics and Communications, 2021, 131
dc.identifier.issn	1434-8411
dc.identifier.issn	1618-0399
dc.identifier.uri	http://hdl.handle.net/10453/157131
dc.description.abstract	A dual-band Doherty power amplifier (DB-DPA) using the extended composite right and left handed transmission lines (E-CRLH TL) is proposed. In this structure the λ/4 transmission lines are replaced with open-ended E-CRLH TL. The power amplifier exhibits dual-band property at f1=2.5GHz, f2=3.4GHz input frequencies and suppresses the second harmonics (2f1, 2f2) at the amplifier output. The simulation studies show that the second harmonic and second order intermodulation (IM2) of the proposed DB-DPA are improved compare to the conventional DPA. This improvement is obtained because of the quad band property of E-CRLH transmission lines. Then, the proposed DB-DPA is examined using various multi tones signals. The better ACPR and efficiency are achieved compare to the conventional Doherty power amplifiers. The measurement results confirm the accuracy of the simulation results.
dc.language	English
dc.publisher	ELSEVIER GMBH
dc.relation.ispartof	AEU - International Journal of Electronics and Communications
dc.relation.isbasedon	10.1016/j.aeue.2020.153584
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering
dc.subject.classification	Networking & Telecommunications
dc.title	Linearity improvement of a dual-band Doherty power amplifier using E-CRLH transmission line
dc.type	Journal Article
utslib.citation.volume	131
utslib.for	0906 Electrical and Electronic Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2022-05-08T22:11:09Z
pubs.publication-status	Published
pubs.volume	131

Abstract:

A dual-band Doherty power amplifier (DB-DPA) using the extended composite right and left handed transmission lines (E-CRLH TL) is proposed. In this structure the λ/4 transmission lines are replaced with open-ended E-CRLH TL. The power amplifier exhibits dual-band property at f1=2.5GHz, f2=3.4GHz input frequencies and suppresses the second harmonics (2f1, 2f2) at the amplifier output. The simulation studies show that the second harmonic and second order intermodulation (IM2) of the proposed DB-DPA are improved compare to the conventional DPA. This improvement is obtained because of the quad band property of E-CRLH transmission lines. Then, the proposed DB-DPA is examined using various multi tones signals. The better ACPR and efficiency are achieved compare to the conventional Doherty power amplifiers. The measurement results confirm the accuracy of the simulation results.

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http://hdl.handle.net/10453/157131