Results 201 to 210 of about 134,248 (260)
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Class-AB/F Doherty Power Amplifiers
2008 38th European Microwave Conference, 2008The class-AB/F Doherty power amplifier (PA) adopts the concept of the class-AB/F PA to enhance efficiency while satisfying linearity. The third harmonic control circuits of the PA improve the efficiency without deteriorating the linearity, and the Doherty PA improves the linearity further by IM3 cancelation.
Daehyun Kang +6 more
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A Millimeter-Wave Four-Way Doherty Power Amplifier With Over-GHz Modulation Bandwidth
IEEE Journal of Solid-State CircuitsThis article presents the design and analysis of a millimeter-wave (mmWave) four-way Doherty power amplifier (PA), aiming to enhance the PA energy efficiency when amplifying orthogonal frequency-division multiplexing (OFDM)-based 5G new radio (NR ...
Xiao-hui Zhang, Hao Guo, T. Chi
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A Millimeter-Wave Watt-Level Doherty Power Amplifier in Silicon
IEEE transactions on microwave theory and techniquesThis article presents a millimeter-wave (mmWave) power-combined Doherty power amplifier (PA) topology. To reach watt-level output power and simultaneously enhance back-off efficiency, we propose a multifunctional PA network based on an extended rat-race ...
Xiaohan Zhang, Sensen Li, T. Chi
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Design of Continuous Doherty Power Amplifier
2019 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2019The continuous Doherty power amplifier (DPA) design is presented in this paper. Two 10-Watts Cree GaN devices are employed to design the continuous DPA. The measured results show that the continuous DPA achieves a power-added efficiency (PAE) of 40%-70% at the peak power and a PAE higher than 35% at the 6-dB output power back-off (OPBO) point in the ...
Jia Jie Wu +5 more
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IEEE Transactions on Circuits and Systems Part 1: Regular Papers, 2022
In this paper, a Doherty power amplifier (DPA) using a novel three-port harmonic injection network (HIN) to extend its high-efficiency range is proposed.
X. Zhou +5 more
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In this paper, a Doherty power amplifier (DPA) using a novel three-port harmonic injection network (HIN) to extend its high-efficiency range is proposed.
X. Zhou +5 more
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Ultra-Wideband Doherty-Like Power Amplifier
2018 IEEE/MTT-S International Microwave Symposium - IMS, 2018This paper presents an innovative technique, distributed efficient power amplifier (DEPA), that is suitable for wideband/multiband applications using signals with large Peak-to-Average-Power-Ratio (PAPR). DEPA replaces the auxiliary amplifier of the conventional Doherty PA (DPA) by $N$ auxiliary sub-amplifiers distributed along an output combiner ...
Paul Saad +3 more
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IEEE transactions on microwave theory and techniques
This article presents a multimode Doherty power amplifier (M-DPA) monolithic microwave integrated circuit (MMIC). The M-DPA comprises of a load network (LN) based on a combination of current- and voltage-combining methods.
Hansik Oh +8 more
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This article presents a multimode Doherty power amplifier (M-DPA) monolithic microwave integrated circuit (MMIC). The M-DPA comprises of a load network (LN) based on a combination of current- and voltage-combining methods.
Hansik Oh +8 more
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Design of Dual-Band Doherty Power Amplifier Using a New Phase Compensation Technique
IEEE Transactions on Circuits and Systems - II - Express BriefsIn this brief, a novel methodology for designing a dual-band Doherty power amplifier (DPA) is proposed by using different current combining phases between the carrier and peaking power amplifiers (PAs) at different operating frequencies.
Kang Zhong +6 more
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IEEE transactions on microwave theory and techniques, 2022
In this article, a load-modulation enhanced wideband compact high-efficiency millimeter-wave (mm-wave) gallium nitride (GaN) monolithic microwave integrated circuit (MMIC) synchronous Doherty power amplifier (DPA) is presented.
Ruijia Liu +9 more
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In this article, a load-modulation enhanced wideband compact high-efficiency millimeter-wave (mm-wave) gallium nitride (GaN) monolithic microwave integrated circuit (MMIC) synchronous Doherty power amplifier (DPA) is presented.
Ruijia Liu +9 more
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Broadband doherty power amplifier and linearization
2016 46th European Microwave Conference (EuMC), 2016This paper will review the recent progress in broadband Doherty power amplifier (PA) and low feedback sampling rate digital predistortion (DPD) techniques. Continuous mode impedance matching method is proposed for Doherty PA for bandwidth enhancement, which utilizes the cross-matching technique to realize the physical output matching network.
Wenhua Chen, Xiaofan Chen, Zonghao Wang
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