Results 191 to 200 of about 5,300,992 (236)
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Millimeter wave transformer coupled low-power and broadband power amplifiers
2016 International Symposium on Integrated Circuits (ISIC), 2016This paper presents two millimeter wave PAs realized in a 130 nm CMOS process. The power amplifier adopts transformer and transmission line matching topology which achieves small area and broadband. One power amplifier focus on low power and the other focus on broadband. The low-power power amplifier operates from 1.2 V supply with 10 dB gain at 62 GHz,
Bo Chen 0014 +4 more
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A Broadband Four-Way Parallel–Series Doherty Power Amplifier for 5G Communications
IEEE Journal of Solid-State CircuitsThis article presents a four-way hybrid parallel–series Doherty power amplifier (PA) architecture that supports broadband operation and deep power back-off (PBO) efficiency enhancement for next-generation wireless communication.
E. Liu, Hua Wang
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Broadband RF SiC MESFET Power Amplifiers
Materials Science Forum, 2005We have designed and characterized preliminary versions of two wideband SiC-based RF power amplifiers using SiC MESFETs from Chalmers University and Lateral Epitaxy SiC MESFETs fabricated at AMDS AB. When optimized transistors are available they will be used in the design of amplifiers for a 100 – 500 MHz multifunction EW system.
Rolf Jonsson, Staffan Rudner
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IEEE Journal on Emerging and Selected Topics in Circuits and Systems
This paper presents an ultra-wideband (UWB) medium power amplifier (MPA) and a broadband high-power power amplifier (HPA) operating at the 5G/6G frequency bands.
Z. Fu +4 more
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This paper presents an ultra-wideband (UWB) medium power amplifier (MPA) and a broadband high-power power amplifier (HPA) operating at the 5G/6G frequency bands.
Z. Fu +4 more
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Noise degradation of cascodes in broadband power amplifiers
2017 Integrated Nonlinear Microwave and Millimetre-wave Circuits Workshop (INMMiC), 2017This paper compares the noise performance of the common-source and the cascode topology. Although the cascode topology has several advantages over the common-source stage, the noise performance degrades due to the channel noise and the induced gate noise of the common-gate stage.
Thomas Huber +2 more
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Broadband high efficiency GaN power amplifier
2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2012This paper reports on the design methodology and realization of a hybrid feedback power amplifier using discrete GaN HEMT die with chip & wire technology. The power amplifier was measured to have over 12.8 dB gain with ±0.85dB flatness and higher than 30.7 dBm output power over 100 MHz to 1GHz.
Yijie Qiu +3 more
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A broadband Doherty power amplifier with harmonic suppression
AEU - International Journal of Electronics and Communications, 2014Abstract In this paper, the design and implementation of the broadband, Doherty power amplifier (DPA) with 2nd and 3rd harmonics suppression, with theoretical analysis is presented. In the proposed structure a novel harmonic suppressed Wilkinson power divider used in DPA, which results in harmonic suppression with high level of attenuation.
M. Hayati, S. Roshani
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A Broadband Design for High-Efficiency Power Amplifiers
2019 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2019The paper presents a broadband design method using simplified real frequency technology (SRFT) and Class-F mode for high-efficiency power amplifiers (PAs). The traditional combination of SRFT with Class-F mode is generally based on Load-Pull technology with the harmonic control network of Class-F PA which will restrict the broaden of frequency band to ...
Jia Jie Wu +3 more
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Broadband Doherty power amplifiers: Advances and challenges
WAMICON 2014, 2014This paper expounds on the recent advancements in the area of broadband Doherty power amplifiers (DPA). It begins by outlining the major sources of performance limitations in DPAs when employed to efficiently amplify multi-band signals scattered over extended frequency bandwidth.
Slim Boumaiza +4 more
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Design of Broadband Divisional Load-Modulated Balanced Amplifier With Extended Dynamic Power Range
IEEE transactions on microwave theory and techniquesThough load-modulated power amplifier (PA) has achieved great commercial success, it is still a challenge to simultaneously improve its operation bandwidth, conversion efficiency, and dynamic range.
Wei Shi +7 more
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