class-A power amplifiers
High-Efficiency High-Gain 2.4 GHz Class-B Power Amplifiers in 0.13 µm CMOS for Wireless Communications
... GHz power amplifiers (PAs) for wireless communications. Two class-B PAs are designed and verified in ...high power added efficiency (PAE) of ...
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High efficiency CMOSs class E power amplifiers in gigahertz frequencies using advanced semiconductor process: A review
... The class-E power amplifier (PA) was first introduced by ...the class-E PA can achieve a 100% of drain efficiency, thus becoming an interested topic of the most research area in designing ...PAs. ...
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Analysis and design of class B dual fed distributed power amplifiers
... a class-A balanced SE-DFDA with an efficiency similar to a conventional single-transistor class-A amplifier using the same FET ...a class-A SE- DFDA can be operated under class-B conditions, ...
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Load pull methodology to characterise class-E outphasing power amplifiers
... a class-E amplifier ...inclusive class-E models do exist but they are complicated and non generic [14]-[17], ...optimum class-E ...outphasing amplifiers means that optimum class-E ...
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The design of a new power combining technique for the RF power amplifiers
... harmonic class F PA and has limited practical application. Therefore, the power summation structure is proposed to implement the power combining, which is named as N-device unbalanced power ...
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Continuous Classes of Power Amplifiers
... general Class-E PA modeling method is described in paragraph ...typical Class-E conditions are presented; a summary of this is given in paragraph ...
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Optimized Current-Mode Class-D RF Power Amplifier for Software Defined Radio
... of class-D CMOS power amplifiers, Table 2 summarizes the performance parameters of the most recent ...output power of ...CMCD power amplifier has been designed in 90-nm technology, ...
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Efficient Power Amplifiers for Millimeter-Wave Beamformers.
... Although class-E operation is difficult to achieve at millimeter-wave frequencies due to the switching speed of the transistor, some benefits could be observed as mentioned by the authors in [ 21, 62 ] with ...
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Linearization of RF Power Amplifiers
... excess power consumption in cartesian feedback[55-62] stems from the manner by which the desired RF envelope output level is ...This class of linearization scheme can only control the RF input of the ...
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Performance Improvement of Power Amplifiers with Volterra Model
... All amplifiers possess the property of distorting the signals they are required to ...linearizing amplifiers with distortion analysis, which is more intuitive and flexible than traditional ...method. ...
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New Behavior Model and Adaptive Predistortion for Power Amplifiers
... a class of LMS algorithms with variable step sizes, which overcomes the contradiction between convergence speed and the steady-state error of fixed step size ...
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CMOS RF Power Amplifier Using Reconfigurable Interstage Network for Envelope Tracking
... output power has been overcome by power amplifier which shows 1- watt of output power ...Watt-level power amplifiers (PAs) typically required for wireless voice and data transmission ...
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Design and analysis of high-efficiency L-band power amplifiers
... If we compare the voltage and the current waveforms from the four different transconductance classes discussed in the previous section, we see that in Class-A amplifier, the current an[r] ...
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An Optimization-Based Design Technique for Multi-Band Power Amplifiers
... for class B amplifiers. In a conventional class B PA, the transistor is biased with zero quiescent, and the output MN provide the optimal impedance at the fundamental frequency and a short circuit at all the ...
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A Modified Generalized Memory Polynomial Model for RF Power Amplifiers
... RF power amplifiers ...GaN Class-F PA driven by two modulated signals (a WCDMA 1001 signal and a single carrier 16QAM signal with 20 MHz ...channel power ratio (ACPR) improvement of ...
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2.4 GHz Class F Power Amplifier for Healthcare Application
... cases, Class F power amplifiers are usually biased as Class AB or Class B states, thus eliminating the harmonics, providing a square wave shape at the ...
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Studies of Low-Frequency Power Amplifier Class D with Operational Amplifiers and Transistors
... Low-frequency power amplifiers class D have been in existence for more than a few decades and are currently used mainly at low frequencies and high powers, ...frequency amplifiers in modern ...
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Closed Loop FOPID Controlled Class E Amplifier Fed Induction Heater System
... symmetrical Class-E power amplifiers for very low harmonic-content applications is suggested by ...symmetrical Class E circuit, under nominal operating conditions, has extremely low harmonic ...
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Adaptive digital predistortion linearisation for RF power amplifiers
... Development of linear modulation schemes has opened the way for spectrally efficient, high speed digital communication systems for voice and data applications. A trend has been to develop utra wide and wide bandwidth ...
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On the Minimization of Power Consumption in Base Stations using on/off Power Amplifiers
... 60% in energy consumption and up to 35% in CAPEX [14]. Noticeably, similarly to our work, a few number of MAC protocols have been proposed for wireless sensor networks (WSN). In particular, there are three MAC protocols, ...
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