NDLI: Design Methodology for Dual-Band Doherty Power Amplifier With Performance Enhancement Using Dual-Band Offset Lines

Content Provider	IEEE Xplore Digital Library
Author	Rawat, K. Ghannouchi, F.M.
Copyright Year	1982
Abstract	This paper proposes a design methodology for dual-band Doherty power amplifier (DPA) with performance enhancement using dual-band phase offset lines. In the proposed architecture, 50-dual-band offset lines with arbitrary electric lengths at two frequencies are key components, and a novel analytical design solution has been proposed for their design and implementation. The methodology is validated with the design and fabrication of a 10-W GaN-based DPA for code division multiple access and Worldwide Interoperability for Microwave Access applications at 1960 and 3500 MHz, respectively. The dual-band Doherty amplifier using the proposed design methodology has better performance than the current state of the art. The peak drain efficiency of the amplifier is 59.5% at the first frequency and 49.6% at the second frequency of operation. Compared to balanced mode operation, there is an improvement of more than 10% in drain efficiencies, around 6.5-dB back-off, at both frequencies.
Sponsorship	IEEE Industrial Electronics Society
Starting Page	4831
Ending Page	4842
Page Count	12
File Size	2113146
File Format	PDF
ISSN	02780046
Volume Number	59
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dual band Impedance Design methodology Power transmission lines Circuit faults Power amplifiers phase offset lines Dispersive structure Doherty power amplifier (DPA) dual band
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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