Power amplifiers and transmitters for RF and microwave

By Frederick H. Raab, Peter M. Asbeck, S. Cripps, P. Kenington, Z. Popovic, Nick Pothecary, J. Sevic, N. Sokal. 2002

1,368 citations recorded by the source corpus.

Subfields: Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/cc611049fa1029230858ec62399b571cb40bfb71

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In Electrical and Electronic Engineering

Citations in the corpus

Three-level buck converter for envelope tracking applications (2006, background): “NVELOPE elimination and restoration (EER) techniques or, more generally, polar modulation techniques, have been proposed to improve the efficiency and linearity of radio frequency power amplifier (RFPA) systems [ 1 ].”
Constant Envelope OFDM (2008, background): “CE-OFDM operates at IBO = 0 dB, maximizing the range and the efficiency of the PA [17].”
HF, VHF, and UHF systems and technology (2002, neutral): “The Ruthroff transformer is widely used for broad-band hybrid splitters and combiners [ 2 ].”
Some physical layer issues of wide-band cognitive radio systems (2005, background): “We will briefly discuss such mechanism in the context of this paper and interested reader may find indepth treatment of the topic elsewhere [10].”
A robust modeling and design approach for dynamically loaded and digitally linearized Doherty amplifiers (2005, positive): “Previously, linearization techniques [1], when applied to class AB amplifiers, showed a significant reduction of the power back-off required for meeting the adjacent channel power ratio (ACPR) and error vector magnitude (EVM) specifications.”
Full-Duplex Transceiver System Calculations: Analysis of ADC and Linearity Challenges (2014, background): “The PA itself, in turn, is typically heavily nonlinear [22], [23], [30].”
Overview of radar waveform diversity (2016, background): “(see [163] for a review of such methods).”
Power Efficiency and Linearity Enhancement Using Optimized Asymmetrical Doherty Power Amplifiers (2011, background): “Various efficiency enhancement approaches have been devised [1]–[3].”
A Dual-Input Digitally Driven Doherty Amplifier Architecture for Performance Enhancement of Doherty Transmitters (2011, neutral): “standards’ linearity requirements [3].”
Radar Spectrum Engineering and Management: Technical and Regulatory Issues (2015, background): “Likewise, to the degree that it is possible to characterize accurately the nonlinear aspects of the transmitter (primarily the power amplifier), inversion of this characterization may facilitate the use of various pre-distortion techniques for linearization [11].”
An Improved Power-Added Efficiency 19-dBm Hybrid Envelope Elimination and Restoration Power Amplifier for 802.11g WLAN Applications (2006, positive): “To maximize the efficiency of the PA, a constant envelope modulation scheme is preferred, since the PA can operate in the high-efficiency compression or saturation region (such as Class C, D, E, or F) [3]–[5].”
A Load Modulated Balanced Amplifier for Telecom Applications (2018, methodology): “While conventional PAs, as combined class-AB stages, show very low efficiency at back-off, there are widely adopted efficiency enhancement techniques that maintain high efficiency with high PAPR signals, i.e., bias modulation techniques as envelope tracking, and load modulation techniques as Doherty”
Digital Predistortion for Envelope-Tracking Power Amplifiers Using Decomposed Piecewise Volterra Series (2008, neutral): “2003529 signals [2].”
Design of a Concurrent Dual-Band 1.8–2.4-GHz GaN-HEMT Doherty Power Amplifier (2012, neutral): “Digital Object Identier 10.1109/TMTT.2012.2189120 satisfy the multiband/multistandard features.”
Multilevel Power Supply for High Efficiency RF Amplifiers (2010, methodology): “This technique combines a highly efficient, but nonlinear RF PA (class D or E, for example) with a highly efficient envelope amplifier to implement high-efficiency linear RF PA [ 4 ].”
A High-Efficiency 100-W GaN Three-Way Doherty Amplifier for Base-Station Applications (2008, background): “To avoid this efficiency degradation, various amplifier architectures with improved efficiency [1] have been proposed over time.”
The Doherty Power Amplifier: Review of Recent Solutions and Trends (2015, methodology): “The DPA is tested with a LTE signal with 7.5 dB PAPR and 10 MHz bandwidth: in the 1.6-2.1 GHz band the PA exhibits, at the average power of 27.5 dBm average efficiency higher than 30%, however complying with the standard emission masks.”
Design of wide-bandwidth envelope-tracking power amplifiers for OFDM applications (2005, methodology): “An efﬁciency-enhanced power-ampliﬁer system design is presented based on wide-bandwidth envelope tracking (WBET) with application to orthogonal frequency-division multiplexing wireless local area network systems.”