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   Articles with "power amplifiers" as a keyword



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A class-E power amplifier with high efficiency and high power-gain for wireless sensor network

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recommendations! Published in 2017 at "Microsystem Technologies"

DOI: 10.1007/s00542-016-3022-0

Abstract: In the literature, a number of two-stage class-E power amplifiers have been reported for wireless sensor network (WSN) applications. However, they suffer from the requirement of larger silicon area, inductors with high quality factor, large… read more here.

Keywords: power amplifiers; dbm; power; class power ... See more keywords
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A Wideband and Low-Loss Spatial Power Combining Module for mm-Wave High-Power Amplifiers

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recommendations! Published in 2020 at "IEEE Access"

DOI: 10.1109/access.2020.3033623

Abstract: We present a low-loss power combiner, providing a highly integrated interface from an array of mm-wave power amplifiers (PAs) to a single standard rectangular waveguide (WG). The PAs are connected to an array of parallel… read more here.

Keywords: low loss; combining module; power amplifiers; power ... See more keywords
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Driver Topologies for RF Doherty Power Amplifiers

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recommendations! Published in 2017 at "IEEE Microwave and Wireless Components Letters"

DOI: 10.1109/lmwc.2016.2629977

Abstract: In this letter, class-B, embedded class-B, and Doherty driver topologies are investigated for RF Doherty Power Amplifiers (PAs). The investigation is firstly conducted theoretically and by simulations and then verified by design and implementation of… read more here.

Keywords: doherty power; power amplifiers; class; doherty driver ... See more keywords
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A Doubly Orthogonal Matching Pursuit Algorithm for Sparse Predistortion of Power Amplifiers

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recommendations! Published in 2018 at "IEEE Microwave and Wireless Components Letters"

DOI: 10.1109/lmwc.2018.2845947

Abstract: This letter presents a new method for the digital predistortion (DPD) of power amplifiers (PAs) based on sparse behavioral models. The Gram–Schmidt orthogonalization is synergistically integrated into the orthogonal matching pursuit algorithm to decorrelate the… read more here.

Keywords: power amplifiers; predistortion; matching pursuit; pursuit algorithm ... See more keywords
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Signed Orthogonal Regressor Algorithm for Digital Predistortion of Power Amplifiers

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recommendations! Published in 2021 at "IEEE Microwave and Wireless Components Letters"

DOI: 10.1109/lmwc.2021.3076392

Abstract: Digital predistortion (DPD) of broadband power amplifiers (PAs) requires a large number of parameters to compensate for the severe nonlinear distortion, which may cause considerable computational complexity in the DPD parameter identification process. To solve… read more here.

Keywords: orthogonal regressor; signed orthogonal; regressor algorithm; power amplifiers ... See more keywords
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Amping Up the PA for 5G: Efficient GaN Power Amplifiers with Dynamic Supplies

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recommendations! Published in 2017 at "IEEE Microwave Magazine"

DOI: 10.1109/mmm.2017.2664018

Abstract: Signals designed for high-capacity communications result in high peak-to-average ratio (PAR) waveforms that the transmitter power amplifier (PA) must amplify with low distortion. With emerging fifth-generation (5G) wireless systems, carrier frequencies and signal bandwidths are… read more here.

Keywords: amplifiers dynamic; power amplifiers; amping efficient; power ... See more keywords
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Output Power and Gain Monitoring in RF CMOS Class A Power Amplifiers by Thermal Imaging

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recommendations! Published in 2019 at "IEEE Transactions on Instrumentation and Measurement"

DOI: 10.1109/tim.2018.2871289

Abstract: The viability of using off-chip single-shot imaging techniques for local thermal testing in integrated radio frequency (RF) power amplifiers (PAs) is analyzed. With this approach, the frequency response of the output power and power gain… read more here.

Keywords: power; power gain; output power; power amplifiers ... See more keywords

1-bit Observation for Direct-Learning-Based Digital Predistortion of RF Power Amplifiers

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recommendations! Published in 2017 at "IEEE Transactions on Microwave Theory and Techniques"

DOI: 10.1109/tmtt.2016.2642945

Abstract: In this paper, we propose a low-cost data-acquisition approach for model extraction of digital predistortion (DPD) of RF power amplifiers. The proposed approach utilizes only 1-bit-resolution analog-to-digital converters (ADCs) in the observation path to digitize… read more here.

Keywords: direct learning; digital predistortion; power amplifiers; power ... See more keywords
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Input-Harmonic-Controlled Broadband Continuous Class-F Power Amplifiers for Sub-6-GHz 5G Applications

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recommendations! Published in 2020 at "IEEE Transactions on Microwave Theory and Techniques"

DOI: 10.1109/tmtt.2020.2984603

Abstract: A comprehensive analysis is presented for investigating the effects of input nonlinearity on performance and broadband design of continuous-mode class-F power amplifiers (PAs). New time-domain waveforms are derived considering input and output harmonic terminations for… read more here.

Keywords: class power; power amplifiers; power; class ... See more keywords
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Efficient Calculation of Stabilization Parameters in RF Power Amplifiers

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recommendations! Published in 2020 at "IEEE Transactions on Microwave Theory and Techniques"

DOI: 10.1109/tmtt.2020.3006185

Abstract: This article proposes an efficient method for the calculation of the stabilization parameters in RF power amplifiers operating in periodic large-signal regimes. Stabilization is achieved by applying the principles of linear control theory for periodic… read more here.

Keywords: stabilization; parameters power; stabilization parameters; power ... See more keywords
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Energy-Efficient Two-Way Relaying Under Non-ideal Power Amplifiers

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recommendations! Published in 2017 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2016.2557761

Abstract: Energy efficiency (EE) is crucial to many battery-powered relay applications. Maximizing EE is challenging due to non-convex structures resulting from non-ideal power amplifiers (PAs) and non-negligible circuit power. We formulate such non-convex problems to maximize… read more here.

Keywords: ideal power; two way; power amplifiers; energy ... See more keywords