Results 31 to 40 of about 134,248 (260)
Evaluating GaN Doherty architectures for 4G Picocells, WiMax and microwave backhaul links [PDF]
, 2014 This paper evaluates the Doherty power amplifier architecture in terms of linearity, efficiency and design solutions. As case study four different prototypes are presented, one for 4G Picocells at 2.1 GHz, one for WiMax applications at 3.5 GHz and two ...
Camarchia, Vittorio +7 more
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Doherty Power Amplifier for LTE-Advanced Systems
Technologies, 2019 The design and implementation of an asymmetrical Doherty power amplifier are discussed, where two Cree GaN High Electron Mobility Transistors (HEMTs) devices are used for designing an asymmetrical Doherty power amplifier to achieve saturated power of 48 ...
Ahmed M. Abdulkhaleq +7 more
doaj +1 more source
Digital Predistortion for Dual-Input Doherty Amplifiers [PDF]
, 2012 This paper presents a digital predistortion technique for dual-input Doherty power amplifiers. The proposed technique utilizes both RF inputs of the main and peak amplifiers in the digital predistorter.
Cao, Haiying +4 more
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Supply Modulation Behavior of a Doherty Power Amplifier
IEEE Journal of Microwaves, 2021 This paper presents a study of supply modulation in a Doherty power amplifier (DPA). To validate a simplified theoretical model, a 3.5 GHz conventional symmetrical DPA using a 6-W packaged GaN pHEMT is designed for supply modulation of the main and/or ...
Dan Fishler, Zoya Popovic, Taylor Barton
doaj +1 more source
Towards a More Generalized Doherty Power Amplifier Design for Broadband Operation [PDF]
, 2017 The conventional Doherty power amplifier (DPA) theory is limited to single carrier operations, leading to a non-generic structure. This paper presents a new analysis that generalizes the conventional DPA theory for increased efficiency and bandwidth.
Barakat, Ayman +4 more
core +1 more source
Four-transistor interleaved Doherty amplifier [PDF]
, 1992 A Doherty amplifier that combines four transistors is proposed. Two transistors are operated in class-B and are interleaved with another two operated in class-C.
Eccleston, K.W.
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3-3.6 GHz Wideband GaN Doherty power amplifier exploiting output compensation stages [PDF]
, 2012 We discuss the design, realization and experimental characterization of a GaN-based hybrid Doherty power amplifier for wideband operation in the 3-3.6 GHz frequency range. The design adopts a novel, simple approach based on wideband compensator networks.
Camarchia, Vittorio +5 more
core +1 more source
Design and simulate a doherty power amplifier using GaAs technology for telecommunication applications [PDF]
, 2019 In this paper, a Doherty power amplifier was designed and simulated at 2.4 GHz central frequency which has high efficiency. A Doherty power amplifier is a way to increase the efficiency in the power amplifiers.
Barmala, Ehsan
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A Broadband Asymmetrical Doherty Power Amplifier With Optimized Continuous Mode Harmonic Impedances
IEEE Journal of Microwaves, 2023 This article presents a design methodology for an asymmetrical Doherty Power Amplifier (DPA) which achieves a high average efficiency at back off across its operating bandwidth. It is shown that by combining continuous modes with post matching techniques,
A. Pitt +3 more
semanticscholar +1 more source
IEEE Access, 2018 This paper presents a $V$ -band Doherty power amplifier (PA) which is implemented in a standard 65-nm CMOS technology. The voltage combination technique is used to realize the millimeter-wave Doherty PA without the $\lambda $ /4 transmission lines.
Dong Chen +5 more
doaj +1 more source