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Broadband Operation of Class-E Power Amplifier with Shunt Filter
2020 18th IEEE International New Circuits and Systems Conference (NEWCAS), 2020This work proposes a new approach for designing broadband class-E power amplifier (PA) with shunt filter. The approach is based on the double reactance compensation technique. Using this technique reactance variation of loaded Q-factor of a shunt filter and parameters of L-shaped matching circuit are adjusted to minimize variation of load impedance at ...
Pavel Afanasyev +3 more
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Electronically tunable class-E power amplifier
2001 IEEE MTT-S International Microwave Sympsoium Digest (Cat. No.01CH37157), 2002The 20-W class-E power amplifier (PA) described here is electronically tunable from 19 to 31 MHz (ratio 1.67). This PA employs a single RF-power MOSFET and operates from 25 V. The output-tuning network employs fixed inductors and high-voltage MOSFETs for variable capacitors.
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An exact analysis of Class-E power amplifiers for RF communications
2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512), 2004An exact analytical approach to the design of a Class-E high frequency power amplifier is presented. The analysis will optimize the load network parameters at the output of the switching transistor, while accounting for harmonics injected into the circuit from the choke inductor, finite quality factor of the output load network, and an exponential ...
Brett E. Klehn, Syed S. Islam
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A Multilevel Pulse-Width Modulated Class-E Power Amplifier
2019 IEEE Radio and Wireless Symposium (RWS), 2019This work reports a Class-E pulse-width modulated RF power amplifier that uses multilevel discrete supply modulation for base station applications. This work quantifies the efficiency roll-off in multilevel PAs and proposes that pulse-width modulated (PWM) class-E PAs offer the best efficiency roll-off and dynamic range, based on the efficiency profile
Mahdi Javid, Jennifer Kitchen
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Analysis and Optimum Design of a Class E RF Power Amplifier
IEEE Transactions on Circuits and Systems I: Regular Papers, 2008A new analysis of a class E power amplifier is presented and a fully analytic design approach is developed. Using our analysis, all of the circuit currents and voltages and, hence, the power dissipation in each component is calculated as a function of a key design parameter, denoted by x.
Javad Yavand Hasani, Mahmoud Kamarei
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Case Study : A class E power amplifier for ISO-14443A
2009 12th International Symposium on Design and Diagnostics of Electronic Circuits & Systems, 2009This paper reports on the design and implementation of a class E push-pull amplifier in order to increase the reading range of an ISO-14443A RFID system. With the aid of classical design formulas and some alterations due to parasitic and intrinsic capacitances, a working implementation was made that can provide the loop with an amplified modulated ...
Elke De Mulder +4 more
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Phase-correcting feedback system for class E power amplifier
IEEE Journal of Solid-State Circuits, 1997A phase-correcting feedback system which reduces the AM-to-PM distortion of Class E power amplifiers for wireless communication is presented in this paper. It comprises a novel limiting amplifier, a phase detector, and a phase shifter all operating at 835 MHz.
Tirdad Sowlati +2 more
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Employing inverse Class‐E power amplifier series output filter in parallel Doherty power amplifier
Microwave and Optical Technology Letters, 2023Akram Sheikhi, Andrei Grebennikov
exaly
Class-E power amplifiers with shunt capacitance
2021Andrei Grebennikov, Marc J. Franco
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A new harmonic tuned class E power amplifier based on waveform analysis
International Journal of Circuit Theory and Applications, 2022Wanghong Yang +2 more
exaly