Results 41 to 50 of about 557,404 (343)
Analysis and elimination of hysteresis and noisy precursors in power amplifiers [PDF]
, 2006 Power amplifiers (PAs) often exhibit instabilities leading to frequency division by two or oscillations at incommensurate frequencies. This undesired behavior can be detected through a large-signal stability analysis of the solution.
Jeon, Sanggeun +2 more
core +1 more source
Energies, 2019 In this paper, a steady-state matrix analysis method is introduced to analyze the output characteristics of the class-E power amplifier used in a wireless power transfer (WPT) system, which takes the inductance resistance, on-resistance and leakage ...
Feng Wen, Rui Li
doaj +1 more source
The Journal of Engineering, 2015 Integration of a class-E power amplifier (PA) and a thin-film bulk acoustic wave resonator (FBAR) filter is shown to provide high power added efficiency in addition to superior out-of-band spectrum suppression.
Kyle Holzer, Jeffrey S. Walling
doaj +1 more source
Comparison of Two Multilevel Architectures for Envelope Amplifier [PDF]
, 2009 Modern transmitters usually have to amplify and transmit signals with simultaneous envelope and phase modulation. Due to this property of the transmitted signal, linear power amplifiers (class A, B or AB) are usually used as a solution for the power ...
Alou Cervera, Pedro +5 more
core +1 more source
An 1 GHz class E LDMOS power amplifier [PDF]
33rd European Microwave Conference Proceedings (IEEE Cat. No.03EX723C), 2003 A class E power amplifier working at 1 GHz and with an LDMOS transistor as switching element has been developed.The circuit is implemented with lumped and distributed elements.An output power of 6.2 W at 69 %drain efficiency with a gain of 11 dB was obtained at 1 GHz.Both simulations and measurements of the amplifier are presented within this paper ...
Adahl, Andreas, Zirath, Herbert
openaire +2 more sources
Analysis and Design of a Novel Broadband and High-Efficiency Class-E/FJ Power Amplifier [PDF]
AUT Journal of Electrical EngineeringThis paper presents a novel hybrid Class-E/FJ power amplifier (PA) that integrates Class-E/F PA and Class-J PA to formulate a high-efficiency as well as broadband performance.
Parastoo Rostami +2 more
doaj +1 more source
Power Amplifiers for Next Generation Wireless Platforms
, 2007 Class-E amplifier has the potential to deliver high efficiency required for the next generation wireless systems. In this journal, we discuss a novel load pull analysis technique to characterize the efficiency performance of Class-E amplifier in an ...
Tom, Kevin
core +1 more source
Frequency-Selective MHz Power Amplifier for Dielectric Barrier Discharge Plasma Generation
IEEE Open Journal of Power Electronics, 2022 Plasma-assisted nitrogen fixation at atmospheric pressure is a clean and decentralized method for fertilizer production. Among many different plasma discharge types, dielectric barrier discharge (DBD) is one of the few that can generate high output of ...
Jiale Xu +4 more
doaj +1 more source
A wideband 0.9–2.4 GHz 25 W high‐efficiency Gallium Nitride radio frequency power amplifier
Engineering Reports, 2021 In this work, a 0.9–2.4 GHz, 25 W output power, radio frequency (RF) power amplifier based on Class‐E switchmode topology has been analyzed. A load‐pull simulation method is used to optimize the power performance in the operating band.
Tanghid B. Rashid, Heather Song
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Objective To evaluate the diagnostic yield and utility of universal paired tumor–normal multigene panel sequencing in newly diagnosed pediatric solid and central nervous system (CNS) tumor patients and to compare the detection of germline pathogenic/likely pathogenic variants (PV/LPVs) against established clinical referral criteria for cancer ...
Natalie Waligorski +9 more
wiley +1 more source