RF power amplifiers
A New Accurate Volterra-Based Model for Behavioral Modeling and Digital Predistortion of RF Power Amplifiers
... (RF) power amplifiers (PAs) are one of the most important components in wireless communication systems, but they are also the major source of ...the power amplifiers ...
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An Accurate Complexity-Reduced Simplified Volterra Series for RF Power Amplifiers
... Abstract—An accurate complexity-reduced simplified Volterra (ACR-SV) series is introduced for RF power amplifiers (PAs). Based on the conventional simplified Volterra (SV) series, it takes memoryless ...
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Reliability Study of GaN-on-SiC HEMT RF Power Amplifiers
... (RF) power amplifiers are used to convert a low-power signal into a higher power signal that drives the antenna of a ...the RF amplifier ...electron-mobility power ...
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Behavioral Modeling of RF Power Amplifiers with Memory Effects Using Orthonormal Hermite Polynomial Basis Neural Network
... Abstract—Behavioral modeling technique provides an efficient and convenient way to analyze and predict the performance of the RF power amplifiers (PAs) in system-level, and thus helps to construct a ...
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Linearization of RF Power Amplifiers
... The rest of the thesis represents a summary of the work I performed in the area of cartesian feedback. In chapter 3, I detail the methods used to carefully characterize two RF power amplifiers. These ...
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A Modified Generalized Memory Polynomial Model for RF Power Amplifiers
... Abstract—A modified generalized memory polynomial model (MGMP) is proposed for RF power amplifiers (PAs). The MGMP model is derived by applying complexity-reduced technique to the generalized memory ...
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Review on Gate Bias Control Method for RF Power Amplifiers Using ARM Processor
... LDMOS power amplifiers operate in Class A or AB, with the positive temperature characteristics near quiescent ...of RF power ...large power dissipation and the maintainability required ...
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A Robust Augmented Combination of Digital Predistortion and Crest Factor Reduction for RF Power Amplifiers
... Abstract—This paper proposes a robust combination of digital predistortion (DPD) and crest factor reduction (CFR) for radio frequency (RF) power amplifiers (PAs). It is constructed using the architecture of ...
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A Hysteretic Two-phase Supply Modulator for Envelope Tracking RF Power Amplifiers
... To show the performance, the simulation results of the proposed two-phase architecture and equivalent one- phase modulator are compared with other previous works in Table 2. As illustrated in the table two 400 nH output ...
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LINEARISATION TECHNIQUES: THE KEY TO THE USE OF MORE EFFICIENT MODULATION SCHEMES AND RF POWER AMPLIFIERS
... The fifth discusses the Cartesian loop transmitter as a linearisation technique, while section 6 explains the results for the simulations carried out for a 16- QAM signal use[r] ...
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A Modified Two Dimensional Volterra-Based Series for the Low-Pass Equivalent Behavioral Modeling of RF Power Amplifiers
... Abstract—This work proposes a modified Volterra-based series suitable for the low-pass equivalent behavioral modeling of radio frequency power amplifiers (RFPAs) for wireless communication systems. In a ...
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Low-Pass Equivalent Behavioral Modeling of RF Power Amplifiers Using Two Independent Real-Valued Feed-Forward Neural Networks
... the power efficiency, especially when a linearization scheme is integrated into the transmitter chain, non-negligible nonlinear behaviors are observed in the PA [2, ...
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FPGA Implementation of a Hammerstein Based Digital Predistorter for Linearizing RF Power Amplifiers with Memory Effects
... In order to validate the proposed DPD implementation, a test bench file is written in Vivado HLS to evaluate the results of the synthetized HDL code. To compare the results, the input data applied to the implemented ...
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Spectral Analysis of Polynomial Nonlinearity with Applications to RF Power Amplifiers
... the power amplifier (PA) present at the final stage of the transmitter ...output power spectral density, for an arbitrary nonlinear order, based on the so-called Leonov-Shiryaev ...
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Adaptive digital polynomial predistortion linearisation for RF power amplifiers
... digital RF signal to the DAC at 120 MSPS. This RF signal is converted to an analogue signal and drives a ZX60-6013E [35] buffer amplifier, which in turn drives a ZFL-2000 ...feedback RF signal at 60 ...
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Adaptive digital predistortion linearisation for RF power amplifiers
... Digital adaptive polynomial predisortion has a number of benefits over LUT based digital predistortion approaches. To provide fine resolution, LUT sizes become very large, which both increases memory requirements, and ...
5
The design of a new power combining technique for the RF power amplifiers
... their power output rather than voltage ...output power and the according optimal load is of interest for the analysis of the combining ...efficiency, power-added efficiency (PAE), voltage supply and ...
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PERFORMANCE ANALYSIS OF OFDM BY USING DIFFERENT CLIPPING TECHNIQUES
... Average Power Ratio (PAPR). (ii) Therefore, RF power amplifiers should be operated in a very large linear ...the power amplifier causing signal ...the power amplifiers ...
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RF Power Amplifier
... One such example is the U.S government’s Active Denial System. This device uses millimeter waves with a short enough wavelength that it will not penetrate a person’s skin more than a 1/64th of an inch in order to radiate ...
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CMOS RF Power Amplifier Using Reconfigurable Interstage Network for Envelope Tracking
... efficient power amplifier for mobile phones increases to extend the battery ...of Power amplifier has become more serious problem with the introduction of fourth-generation long term evolution ...efficient ...
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