Results 11 to 20 of about 23,589 (286)

An 1 GHz class E LDMOS power amplifier [PDF]

open access: yes33rd 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   +4 more sources

An Off-Nominal Class E Amplifier—Design Oriented Analysis [PDF]

open access: yes, 2023
This paper analyses an off-nominal Class E ZVS amplifier, with an R.F. supply choke and the switch on-duty ratio D = 0.5, to identify conditions for its high-frequency and high-efficiency operation.
Miroslaw Mikolajewski
core   +1 more source

Design and Stability Analysis Techniques for Switching-Mode Nonlinear Circuits: Power Amplifiers and Oscillators [PDF]

open access: yes, 2006
A design technique for kW level switching mode power amplifiers is presented. Several push pull pairs, independently tuned to Class E/Fodd, are combined by a distributed active transformer.
Jeon, Sanggeun
core   +1 more source

Analysis and Design of Outphasing Transmitter Using Class-E Power Amplifiers With Shunt Capacitances and Shunt Filters

open access: yesIEEE Access, 2020
In this paper, a novel outphasing power amplifier (PA) based on class-E amplifiers with shunt capacitances and shunt filters is proposed. The new design provides high drain efficiency for both peak and back-off power levels.
Pavel Afanasyev   +3 more
doaj   +1 more source

Design of the Class-E Power Amplifier with Finite DC Feed Inductance under Maximum-Rating Constraints

open access: yesApplied Sciences, 2021
This paper proposes an analytical expression set to determine the maximum values of currents and voltages in the Class-E Power Amplifier (PA) with Finite DC-Feed Inductance (FDI) under the following assumptions—ideal components (e.g., inductors and ...
Ingrid Casallas   +4 more
doaj   +1 more source

Comprehensive and Simplified Numerical Design Procedure for Class-E Switching Circuits

open access: yesIEEE Access, 2021
This paper proposes comprehensive and simplified numerical design procedures for the class-E switching circuits with the Particle Swarm Optimization (PSO) algorithm.
Wenqi Zhu   +3 more
doaj   +1 more source

Analytical Design Equations for Class-E Power Amplifiers [PDF]

open access: yesIEEE Transactions on Circuits and Systems I: Regular Papers, 2007
This paper presents the analytical solution in time domain for the ideal single-ended Class-E Power Amplifier (PA). Based on the analytical solution a coherent non-iterative procedure for choosing the circuit parameters is presented for Class- E PA’s with arbitrary duty-cycle and finite dc-feed inductance (e.g.
Mustafa Acar   +2 more
openaire   +1 more source

A Dual-Mode Highly Efficient Class-E Stimulator Controlled by a Low-Q Class-E Power Amplifier Through Duty Cycle [PDF]

open access: yes, 2014
This paper presents the design flow of two high-efficiency class-E amplifiers for the implantable electrical stimulation system. The implantable stimulator is a high-Q class-E driver that delivers a sine-wave pulsed radiofrequency (PRF) stimulation ...
高明見   +1 more
core   +1 more source

A novel inverse class E power amplifier topology

open access: yes2013 21st Signal Processing and Communications Applications Conference (SIU), 2013
In this work, a 10 Watt inverse class-E power amplifier has been proposed, simulated, realized and measured for the 2.7-2.9 GHz wireless applications. In the proposed power amplifier topology distributed elements were used instead of lumped elements and their widths and lengths were optimized with AWR Microwave Office.
Kizilbey, Neslihan, Kizilbey, Oguzhan
openaire   +2 more sources

A new series-L/parallel-tuned class DE-1 power amplifier

open access: yesDianzi Jishu Yingyong, 2018
This paper proposes a new series-L/parallel-tuned class DE-1 power amplifier. The theoretical analysis was conducted according to zero current switching(ZCS) and zero current slope switching(ZCSS) conditions.
Hua Zaijun   +3 more
doaj   +1 more source

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